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Highly stable photovoltaic effects in A2+–Zr4+ (A = Ca, Sr, Ba) co-doped BiFeO3 films with self-polarization

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA00649F, Paper
Lei Shi, Wenyue Zhao, Zhao Wang, Wenjing Hua, Xiaoxia Yang, Weidong Fei, Yu Zhao
The photovoltaic responses and temperature stabilities of A2+–Zr4+ (A = Ca, Sr, Ba) composite doped BiFeO3 films with self-polarization were enhanced in the R to MA phase transition.
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IAPMO publishes Installation Standard for Residential Solar Photovoltaic and Energy Storage Systems

The 2021 USHGC is scheduled to be published in early 2021.




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Photovoltaic End-Use Application Markets

Photovoltaic markets can be classified based on the end-use application of the technology. The most common PV projects are off-grid applications. Water pumping also represents an important application of PV, particularly in developing countries. The largest long-term market potential for... Read more

The post Photovoltaic End-Use Application Markets appeared first on EEP - Electrical Engineering Portal.




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Calculation Example of Small Photovoltaic (PV) Residential Stand-Alone System

– Array Size: 10, 12-volt, 51-watt modules; Isc= 3.25 amps, Voc= 20.7 volts – Batteries: 800 amp-hours at 12 volts – Loads: 5 amps DC and 500-watt inverterwith 90% efficiency. The PV modules are mounted on the roof. Single-conductor cables... Read more

The post Calculation Example of Small Photovoltaic (PV) Residential Stand-Alone System appeared first on EEP - Electrical Engineering Portal.




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3 Photovoltaic Installation Terms To Be Familiar With

In order to understand a photovoltaic (PV) installation and its components we must be familiar with the following terms: Standard Test Conditions (STC) PV modules PV string and Array The output of a PV module is not stable it depends... Read more

The post 3 Photovoltaic Installation Terms To Be Familiar With appeared first on EEP - Electrical Engineering Portal.




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Novolex Launches TamperFlag Rigid Containers for Increased Food Security

The new TamperFlag rigid containers, made by Novolex brand Waddington North America (WNA), feature a tamper-evident “flag” that pops up and stays raised once opened. The feature alerts consumers that the container has been unsealed.




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Novolex® Appoints Ted Jackson as President of Performance Solutions Segment

Jackson assumes this role after rising through a series of positions with increasing responsibility within Novolex and, before joining the company, broad experience in general operations and consulting. 




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Novolex Announces Investment in OZZI Food Packaging

As a part of this investment, Eco-Products®, a Novolex business unit and leader in circular solutions for the foodservice industry, will help accelerate the growth of OZZI.  




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Novolex Launches PowerPrep Bags and Rolls for Grab-and-Go Products

Manufactured by Bagcraft®, a Novolex brand, the new multilayered bags and rolls keep foods at the height of flavor as they are wrapped, frozen, thawed, reheated and held under heat at the point of sale.




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Joseph Kovolyan Will Not Settle in Order to Make a Difference




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20 People Complete Solar Photovoltaic Training

Twenty Bermudians recently completed the Solar Photovoltaic Certification Training Programme held in partnership with Connectech. A Government spokesperson said, “The Ministry of Home Affairs is pleased to advise the public that twenty Bermudians recently completed the Solar Photovoltaic or PV Certification Training Programme held in partnership with Connectech. “The student participants were selected from a […]




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Kde strávit dovolenou na Valentýna?

Zima je tu a dlouhé zimní měsíce přímo volají po troše tepla. Zejména období kolem svátku svatého Valentýna je ideální příležitostí jet se prokrvit na pláž u moře.




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Use of benzothiophene ring to improve the photovoltaic efficacy of cyanopyridinone-based organic chromophores: a DFT study

RSC Adv., 2024, 14,12841-12852
DOI: 10.1039/D3RA06817J, Paper
Open Access
Iqra Shafiq, Muhammad Khalid, Gul Maria, Nadeem Raza, Ataualpa A. C. Braga, Saifullah Bullo, Mohamed Khairy
The benzothiophene based chromophores (A1D1–A1D5) with A–π–A configuration were designed via end-capped tailoring with benzothiophene type acceptors using reference compound (A1R).
The content of this RSS Feed (c) The Royal Society of Chemistry




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An in-depth investigation of lead-free KGeCl3 perovskite solar cells employing optoelectronic, thermomechanical, and photovoltaic properties: DFT and SCAPS-1D frameworks

Phys. Chem. Chem. Phys., 2024, 26,27704-27734
DOI: 10.1039/D4CP02974G, Paper
Md. Tarekuzzaman, Mohammad Hasin Ishraq, Md. Shahazan Parves, M. A. Rayhan, Sohail Ahmad, Md. Rasheduzzaman, K A Al Mamun, M. Moazzam Hossen, Md. Zahid Hasan
Crystal structure of KGeCl3 and the design configuration of the KGeCl3-based PSC.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Improved perovskite crystallization by antisolvent engineering in tin-perovskite photovoltaics

Phys. Chem. Chem. Phys., 2024, Advance Article
DOI: 10.1039/D4CP02655A, Paper
Xin Zhang, Yu Liu, Xinyao Chen, Chunqian Zhang, Jigang Wang, Jin Cheng, Junming Li
By adding an appropriate proportion of DMS to the anti-solvent, the DMSO remaining in the tin-based perovskite films can be effectively extracted, resulting in films with better crystallography, and the devices have lower trap densities.
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The content of this RSS Feed (c) The Royal Society of Chemistry




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Aromatic side chain manipulation in A–DA'D–A type acceptors for organic photovoltaics

Mater. Chem. Front., 2024, 8,3587-3595
DOI: 10.1039/D4QM00465E, Research Article
ChengLong Wen, Jun Yuan, Zhiguo Zhang, Dongxu Li, Yuqian Zhou, Wanqiang Liu, Zaichun Zhou, Yungui Li, Lihui Jiang, Yingping Zou
Three acceptors with different aromatic side chains were synthesized and the photovoltaic performance effects of steric hindrances were studied. BTP-1-iPr better matches the energy level of PM6, obtaining higher VOC, FF and PCE of 17.19%.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A comprehensive study on the halogenation effect of non-fullerene acceptors for photovoltaic application

Mater. Chem. Front., 2024, 8,3643-3652
DOI: 10.1039/D4QM00648H, Research Article
Jing Peng, Lijiao Ma, Huixue Li, Guanlin Wang, Zhihao Chen, Feiwu Chen, Jianhui Hou, Shaoqing Zhang
Four small-molecule acceptors with the same conjugated backbone but different terminal halogen substituents (F, Cl, Br, I) were developed, the effects of these halogens on film morphology and optoelectronic performance were systematically studied.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Improved photovoltaic performance and stability of perovskite solar cells by adoption of an n-type zwitterionic cathode interlayer

Mater. Horiz., 2024, Advance Article
DOI: 10.1039/D4MH00253A, Communication
Young Wook Noh, Jung Min Ha, Jung Geon Son, Jongmin Han, Heunjeong Lee, Dae Woo Kim, Min Hun Jee, Woo Gyeong Shin, Shinuk Cho, Jin Young Kim, Myoung Hoon Song, Han Young Woo
Integration of NDI-ZI as a cathode interlayer in perovskite solar cells improves both device efficiency and stability, mitigating halide and Ag ion migration by chemically capturing ions via electrostatic Coulombic interactions.
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Bulk photovoltaic effect in a zero-dimensional room-temperature molecular ferroelectric [C8N2H22]1.5[Bi2I9]

Dalton Trans., 2024, Accepted Manuscript
DOI: 10.1039/D4DT02698E, Paper
Zhibo Chen, Tianhong Luo, Jinrong Wen, Zhanqiang Liu, Jingshan Hou, Yongzheng Fang, Ganghua Zhang
Non-toxic molecular ferroelectrics have attracted significant interest due to their unique flexibility, low costs, and environmental friendliness. However, the variety of such materials with narrow bandgaps and above room temperature...
The content of this RSS Feed (c) The Royal Society of Chemistry




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De-templated crystallization in 2D perovskites for enhanced photovoltaic efficiency

Energy Environ. Sci., 2024, 17,8284-8292
DOI: 10.1039/D4EE03272A, Paper
Fang Zeng, Zhenhuang Su, Weiyu Kong, Feng Li, Yuhang Liang, Xingmo Zhang, Tao Wang, Lin Zhang, Yuze Lvtao, Runkai Liu, Xingyu Gao, Jun Huang, Xudong Yang, Rongkun Zheng
A de-templated crystallization strategy using a stable intermediate to promote out-of-plane crystallization of layered 2D perovskites was proposed, in favor of highly efficient and stable perovskite solar cells.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Perspectives for sustainability analysis of scalable perovskite photovoltaics

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE03956D, Perspective
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Xueyu Tian, Samuel D. Stranks, Jinsong Huang, Vasilis M. Fthenakis, Yang Yang, Fengqi You
We propose a multi-scale analytics and modeling framework to fill the gap in integrating circular solar economy principles with ecosystem and climate commitments, enabling a holistic sustainability analysis of perovskite PVs.
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A wearable DC tribovoltaic power textile woven by P/N-type organic semiconductor fibers

Energy Environ. Sci., 2024, 17,8621-8632
DOI: 10.1039/D4EE02662D, Paper
Open Access
Beibei Fan, Guoxu Liu, Yiming Dai, Zefang Dong, Ruifei Luan, Likun Gong, Zhi Zhang, Zhong Lin Wang, Chi Zhang
A high-performance, wearable tribovoltaic DC power supply textile was prepared using a traditional weaving process. The WDPs have high flexibility, excellent environmental robustness, lower internal resistance, and washability.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A techno-economic study of photovoltaic-solid oxide electrolysis cell coupled magnesium hydride-based hydrogen storage and transportation toward large-scale applications of green hydrogen

Energy Environ. Sci., 2024, 17,8429-8456
DOI: 10.1039/D4EE04224G, Analysis
Xusheng Wang, Longfei Shao, Shouyi Hu, Zi Li, Hangzuo Guo, Jiaqi Zhang, Yingyan Zhao, Xi Lin, Binjian Nie, Zhigang Hu, Jianxin Zou
Integrating PV-SOEC for hydrogen production with MgH2-based storage and transportation holds significant potential in advancing the hydrogen supply chain.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Enhancing inter-domain connectivity by reducing fractal dimensions: the key to passivating deep traps in organic photovoltaics

Energy Environ. Sci., 2024, 17,8893-8903
DOI: 10.1039/D4EE02961E, Paper
Yuang Fu, Luhang Xu, Yuhao Li, Emily J. Yang, Yu Guo, Guilong Cai, Pok Fung Chan, Yubin Ke, Chun-Jen Su, U-Ser Jeng, Philip C. Y. Chow, Ji-Seon Kim, Man-Chung Tang, Xinhui Lu
Researchers in CUHK identified isolated non-fullerene acceptor (NFA) domains as the morphological origin of deep electron traps in organic photovoltaics. They showcased effective trap passivation by reducing the fractal dimensions of NFA networks.
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Engineering ultrafast exciton dynamics to boost organic photovoltaic performance

Energy Environ. Sci., 2024, 17,8776-8786
DOI: 10.1039/D4EE03315A, Paper
Yu Guo, Guangchao Han, Jing Guo, Haotian Guo, Yuang Fu, Xiaodan Miao, Zhen Wang, Dongsheng Li, Shuixing Li, Xiaomin Xu, Xinhui Lu, Hongzheng Chen, Yuanping Yi, Philip C. Y. Chow
Y-type acceptors exhibiting faster migration (shorter τ) of local excitons (LEs) in disordered regions of aggregates to intermolecular charge-transfer (ICT) excitons in ordered regions can achieve higher efficiencies in organic solar cells.
The content of this RSS Feed (c) The Royal Society of Chemistry




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BP/GaN and BP/GaP core/shell nanowires: theoretical insights into photovoltaic and gas-sensing abilities

Nanoscale, 2024, 16,20235-20251
DOI: 10.1039/D4NR02602K, Paper
Rishit S. Shukla, Vidit B. Zala, Sanjeev K. Gupta, P. N. Gajjar
BP/GaN and BP/GaP core/shell nanowires (CSNWs) show good sensitivity for some small oxide gases. Also, BP/GaP CSNWs show >33% photovoltaic conversion efficiency.
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Organic photovoltaic window device generates electricity and blocks heat

Improvements to device may eventually cut external power demands for buildings by 50%




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Closed-loop recycling of photovoltaic panel materials could mitigate up to 0.2% of Flanders’ annual environmental impact

The development of future recycling technologies must be informed by data about products and materials that will enter the waste stream, but such forecasts are subject to a high level of uncertainty. In this study, researchers have proposed a methodology for predicting emerging waste materials, applying it to silicon-based photovoltaic (PV) panels. The findings show that closed-loop recycling — when post-consumer waste is recycled to make new products — of PV panel materials could mitigate up to 0.2% of the annual environmental impact of Flanders1, Belgium, if suitable technology was developed.




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Modern photovoltaic systems provide competitive energy returns

Most modern societies depend on fossil fuels (oil, gas and coal) as sources of energy for development and growth. Switching to renewable energy sources, such as photovoltaic (PV) systems, is necessary for sustainable development in the future. A new study suggests that it is currently much more efficient to use fossil fuels to develop PV power plants than to combust the same amount of fossil fuels in conventional thermal power plants: thus the sooner PV systems are developed, the sooner society will reduce its reliance on fossil fuels.




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Nanotechnology cuts costs and improves efficiency of photovoltaic cells

Researchers have summarised the most effective ways that nanostructures can improve the efficiency and lower costs of photovoltaic (PV) solar cells in a recent analysis. Sculpting ultra-thin solar cell surfaces at the nano-scale has been found to effectively boost their efficiency.




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Photovoltaic supply falls short of solar power targets

Europe could struggle to meet the target set by the renewable energy sector of 25% of electricity produced by solar energy by 2040 because the supply of materials, including rare metals, needed to produce photovoltaics (PV) is unlikely to meet demand. Production rates need to be drastically improved, according to a new study.




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OPVIUS Develops New Production Process For Freeform Organic Photovoltaic Modules

Revolutionary production process allows a simple transfer of a common OPV preliminary product to real customised OPV products




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Organic Photovoltaic (OPV) Solar Trees of the German Pavilion at EXPO 2015 Obtain Sustainable Use

The original OPV Solar Trees of the German Pavilion at the EXPO 2015 world exhibition in Milan have been reinstalled in Darmstadt.




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The World's First Energy-Efficient ETFE Façade Installed using Printed Organic Photovoltaic

OPVIUS GmbH and Taiyo Europe GmbH realize the world's first energy-efficient façade project in membrane architecture at a Merck KGaA building in Darmstadt.




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The First Thermal Insulation Composite System With Integrated Photovoltaics

As part of the renovation of a residential building belonging to the Frankfurter Wohnungsbaugesellschaft ABG, the first "in-plaster" photovoltaic system based on organic photovoltaic (OPV) technology in the world was implemented.




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ARMOR Industrializes Free-form Photovoltaics

ARMOR has just reached an important milestone in the production of its flexible organic photovoltaic film, ASCA©.




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Dedication of New Photovoltaic System Planned at Grand Canyon

The National Park Service and Arizona Public Service will be hosting a public event on Monday, May 18, at 11:00 a.m., to celebrate the installation of eighty-four photovoltaic solar panels at the Grand Canyon Visitor Center. https://www.nps.gov/grca/learn/news/news-2009-05-12-aps.htm




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Photovoltaic cell having a substrate glass made of aluminosilicate glass

A photovoltaic cell, for example a thin-film photovoltaic cell, having a substrate glass made of aluminosilicate glass, has a glass composition which has SiO2 and Al2O3 as well as the alkali metal oxide Na2O and the alkaline earth oxides CaO, MgO, and BaO, and optionally further components. The glass composition includes 10 to 16 wt.-% Na2O, >0 to 1 to 10 wt.-% BaO, and the ratio of CaO:MgO is in the range of 0.5 to 1.7. The aluminosilicate glass used is crystallization stable because of the selected quotient of CaO/MgO and has a transformation temperature >580° C. and a processing temperature




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1,4-fullerene addends in photovoltaic cells

1,4 fullerene deriatives useful for solar cells are provided, where their structures allow for straightforward functionalizations to tune their properties in terms of solubility and LUMO energy levels.




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Secure control mechanism for distributed photovoltaic system

A system for controlling photovoltaic electricity production equipment having photovoltaic modules each equipped with a DC/DC microconverter connected to a DC bus, a DC bus manager, and an inverter for converting the direct current from the photovoltaic panels into alternative current intended for an electrical distribution network. Power is injected into the DC bus when the voltage of the DC bus is less than a minimum voltage until the minimum voltage is reached. Each of the microconverters injects a maximum power from the photovoltaic modules into the DC bus when the voltage of the DC bus is between a first voltage and a second voltage. The injecting of power from the photovoltaic modules into the DC bus is stopped when the voltage of the DC bus is less than a low threshold voltage or greater than a high threshold voltage.




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Voltage setting device, photovoltaic power generation system, and control method of voltage setting device

An output converter includes a DCDC conversion section, a secondary side voltage/current monitoring section detecting a power from the DCDC conversion section, a maximum operation point control section determining what voltage is to be set by the DCDC conversion section so that the power detected by the secondary side voltage/current monitoring section is maximum, a DCDC short-circuit switch via which a current from a module bypasses the DCDC conversion section to outside, a primary side voltage/current monitoring section measuring the current from the module, a module short-circuit switch switching between a state where a secondary side cathode and a secondary side anode are short-circuited and a state where they are not short-circuited, the maximum operation point control section causing the DCDC short-circuit switch and the module short-circuit switch to switch.




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Wireless energy transfer for photovoltaic panels

Described herein are improved configurations for a wireless power transfer involving photovoltaic panels. Described are methods and designs that use electric energy from a photovoltaic module to energize at least one wireless energy source to produce an oscillating magnetic field for wireless energy transfer. The source may be configured and tuned to present an impedance to a photovoltaic module wherein said impedance enables substantial extraction of energy from said photovoltaic module.




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Photovoltaic device with back side contacts

Methods and apparatus for converting electromagnetic radiation, such as solar energy, into electric energy with increased efficiency when compared to conventional solar cells are provided. A photovoltaic (PV) device generally includes a window layer; an absorber layer disposed below the window layer such that electrons are generated when photons travel through the window layer and are absorbed by the absorber layer; and a plurality of contacts for external connection coupled to the absorber layer, such that all of the contacts for external connection are disposed below the absorber layer and do not block any of the photons from reaching the absorber layer through the window layer. Locating all the contacts on the back side of the PV device avoids solar shadows caused by front side contacts, typically found in conventional solar cells. Therefore, PV devices described herein with back side contacts may allow for increased efficiency when compared to conventional solar cells.




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Photovoltaic device including flexible substrate or inflexible substrate and method for manufacturing the same

Disclosed is a photovoltaic device. The photovoltaic device includes: a substrate; a first electrode placed on the substrate; a second electrode which is placed opposite to the first electrode and which light is incident on; a first unit cell being placed between the first electrode and the second electrode, and including an intrinsic semiconductor layer including crystalline silicon grains making the surface of the intrinsic semiconductor layer toward the second electrode textured; and a second unit cell placed between the first unit cell and the second electrode.




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Flexible solar cell photovoltaic assembly prepared with flexible substrate

This invention is directed to a flexible solar cell photovoltaic module with high light transmittance based on modified substrate, which belongs to the field of thin-film solar cell technology. The objective of the present invention to provide a technical solution for a transparent flexible solar cell module and its fabrication method. Technical features include using a stainless steel template to mold a modified polyimide PI substrate (the PI substrate). The PI substrate has light-passing through-holes, including draining holes and convergence holes, through and distributed on the PI substrate, a conductive film layer, and various stacked photoelectric conversion film layers. The creativeness of the present invention is obvious, such as reducing the short circuit and current leakage due to crystallization of the photoelectric layer interface caused by a subsequent process of laser etching the conductive film layer, reducing the composition on the surface of the solar cell, reducing steps of the fabrication process, and lowering the production cost. Further, the present invention significantly increases the conversion efficiency and load capacity of the solar cell and the quality-cost ratio. The transparent flexible solar cell photovoltaic module also has a broad range of applications.




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Resin composition, multi-layered film and photovoltaic module including the same

A resin composition, a multi-layered film, a backsheet for photovoltaic modules, a method thereof, and a photovoltaic module are provided. The multi-layered film including a coating layer including a fluorine-based polymer has an excellent durability and weather resistance, and also exhibits high interfacial adhesive strength to a substrate since the multi-layered film is formed by coating a cured product of the resin composition including the fluorine-based polymer, an acrylic polymer including a thermosetting functional group, and a heat-curing agent on the substrate. In addition, drying can be performed at a low temperature during the manufacture of the multi-layered film so that the manufacturing costs can be decreased, productivity can be increased, and the deterioration of the product due to heat modification, heat shock, and the like, can be prevented. The multi-layered film can be effectively used as a backsheet for various photovoltaic modules.




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Photovoltaic cell containing novel photoactive polymer

Novel photoactive polymers, as well as related photovoltaic cells, articles, systems, and methods, are disclosed.




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Forming graded index lens in an all atmospheric pressure printing process to form photovoltaic panels

A PV panel uses an array of small silicon sphere diodes (10-300 microns in diameter) connected in parallel. The spheres are embedded in an uncured aluminum-containing layer, and the aluminum-containing layer is heated to anneal the aluminum-containing layer as well as p-dope the bottom surface of the spheres. A phosphorus-containing layer is deposited over the spheres to dope the top surface n-type, forming a pn junction. The phosphorus layer is then removed. A conductor is deposited to contact the top surface. Alternatively, the spheres are deposited with a p-type core and an n-type outer shell. After deposition, the top surface is etched to expose the core. A first conductor layer contacts the bottom surface, and a second conductor layer contacts the exposed core. A liquid lens material is deposited over the rounded top surface of the spheres and cured to provide conformal lenses designed to increase the PV panel efficiency.




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Temperature grading for band gap engineering of photovoltaic devices

A method for fabricating a photovoltaic device includes depositing a p-type layer at a first temperature and depositing an intrinsic layer while gradually increasing a deposition temperature to a final temperature. The intrinsic layer deposition is completed at the final temperature. An n-type layer is formed on the intrinsic layer.




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Photovoltaic cell and manufacturing method thereof

A photovoltaic cell comprises a top subcell having a first band gap; a middle subcell comprising a substrate and having a second band gap, wherein the substrate comprises a first side and a second side opposite to the first side; and a bottom subcell having a third band gap, wherein the top subcell is grown on the first side of the substrate and the bottom subcell is grown on the second side of the substrate, wherein the first band gap is larger than the second band gap and the second band gap is larger than the third band gap.