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Architectural Profile of the Month: Mary Bledsoe

Mary Bledsoe, RID TX, IIDA, LEED AP ID&C, is the principal, design director at lauckgroup in Austin, Texas.




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Blue LEDs are the New Standard for Monochrome Vision Systems

Selecting the correct LED lighting for machine vision can be challenging, even for experienced professionals. While red LEDs are commonly used, blue LEDs can be a superior choice for certain applications.




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Under the Hood of LEDs (Light Emitting Diodes)

LED lamps, or Light Emitting Diodes, are becoming more and more common. Having been used for some time in products such as digital watches, remote controls and brake lights, they are now being seen in many more applications such as... Read more

The post Under the Hood of LEDs (Light Emitting Diodes) appeared first on EEP - Electrical Engineering Portal.




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LG Develops First-Ever Stretchable Display With Amazing Elasticity And Micro LEDs

LG is bending the rules of physics with its first-ever stretchable display that expands with impressive elasticity and micro-LEDs. The new display is capable of expanding up to 50%, the highest rate of elongation in the industry. Companies have been pushing the boundaries of what screens can do in the last few years. From Motorola’s concept




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Bo-Dyn Bobsleds Use SOLIDWORKS to Design World’s Fastest Sled

ModernTech Teaches Bo-Dyn How to Find Hundredths of a Second for a Golden Repeat




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A novel extra-broadband visible-emitting garnet phosphor for efficient single-component pc-WLEDs

Inorg. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QI01824A, Research Article
Qianyi Chen, Zhenjie Lun, Dongdan Chen, Yongsheng Sun, Puxian Xiong, Siyun Li, Shanhui Xu, Zhongmin Yang
A defect engineering strategy mediated by the structural cationic substitution is proposed and experimentally demonstrated for ultra-broadband emission in a garnet Y3Sc2Al3O12:B3+ phosphor.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Design strategy and molecular level understanding: hole transport materials with suitable transition dipole orientation for OLEDs

Mol. Syst. Des. Eng., 2024, 9,1116-1129
DOI: 10.1039/D3ME00127J, Paper
Krishan Kumar, Sunil Kumar, Anirban Karmakar, Dipanshu Sharma, Feng-Rong Chen, Mangey Ram Nagar, Jwo-Huei Jou, Subrata Banik, Subrata Ghosh
A combined experimental and theoretical study on a group of phenothiazine-substituted pyridine is reported.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A novel Eu3+ activated Ca3Zn3Te2O12 tellurate red phosphor for white LEDs with high color stability and color purity

New J. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4NJ01281J, Paper
Feiyan Xie, Junqiang Gu, Dekang Xu, Qiancheng Xiong, Jinyu Yang, Xiangjian Ou, Dawei Wen
Research into red phosphors with a high color rendering index is particularly compelling, given the absence of a red component in the spectrum of commercial phosphor-converted white light-emitting diodes, which...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Highly efficient top-emitting green phosphorescent OLEDs with a narrow band and slow efficiency roll-off for high-definition displays

Mater. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QM00779D, Research Article
Jun Wang, Fanmin Meng, Weijian Liu, Zhaochao Zhang, Jiuyan Li
New bipolar hosts are used to fabricate green-phosphorescent OLEDs, realizing a narrow full width at half maximum of 28 nm, high efficiencies of 183.1 cd A−1 and 247.3 lm W−1, and slow efficiency roll-off with 132.2 cd A−1 at 66 000 cd m−2.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Asymmetric deep-blue tetrafluorobenzene-bridged fluorophores with hybridized local and charge-transfer characteristics for efficient OLEDs with low efficiency roll-off

Mater. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QM00636D, Research Article
Shengnan Wang, Haoyuan Qi, Hao Huang, Jie Li, Yuchao Liu, Shanfeng Xue, Shian Ying, Changsheng Shi, Shouke Yan
Deep-blue HLCT materials boasting rapid radiative rates and bipolar transporting capabilities were achieved by integrating an asymmetric D–A–D' structure with a novel tetrafluorobenzene acceptor.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A novel deep-blue fluorescent emitter employed as an identical exciplex acceptor for solution-processed multi-color OLEDs

J. Mater. Chem. C, 2024, Accepted Manuscript
DOI: 10.1039/D4TC04073B, Paper
Jie Pan, Shiyue Zhang, Zhongxin Zhou, Yongtao Zhao, Shujing Jin, Yanju Luo, Weiguo Zhu, Yu Liu
Currently, exciplex-type thermally activated delayed fluorescence (TADF) materials are emerging as a promising strategy for optimizing organic light-emitting devices (OLEDs). However, achieving highly efficient multi-color OLEDs based on exciplexes remains...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Hybridized local and charge transfer dendrimers with near-unity exciton utilization for enabling high-efficiency solution-processed hyperfluorescent OLEDs

Mater. Horiz., 2024, 11,1741-1751
DOI: 10.1039/D3MH01860A, Communication
Yixiao Yin, Songkun Zeng, Chen Xiao, Peng Fan, Dong Jin Shin, Ki Ju Kim, Hyewon Nam, Qian Ma, Huili Ma, Weiguo Zhu, Taekyung Kim, Jun Yeob Lee, Yafei Wang
Two dendrimers, called D-TTT-H and D-TTT-tBu, were prepared, which exhibits both hot exciton process and TADF characteristic simultaneously in solid state. The solution processable OLED showed an EQEmax of 30.88% employing D-TTT-H as a sensitizer.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Correction: Solution-processed white OLEDs with power efficiency over 90 lm W−1 by triplet exciton management with a high triplet energy level interfacial exciplex host and a high reverse intersystem crossing rate blue TADF emitter

Mater. Horiz., 2024, 11,1817-1817
DOI: 10.1039/D4MH90021A, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Liang Chen, Yufei Chang, Song Shi, Shumeng Wang, Lixiang Wang
The content of this RSS Feed (c) The Royal Society of Chemistry




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Dual-ligand quasi-2D perovskites with chiral-induced spin selectivity for room temperature spin-LEDs

Mater. Horiz., 2024, Advance Article
DOI: 10.1039/D3MH02029K, Communication
Haotian Gao, Yu Chen, Ruxi Zhang, Rui Cao, Yong Wang, Yunfei Tian, Yin Xiao
We developed new quasi-2D perovskites with chiral and achiral organic cations as co-ligands and demonstrated their effective application in spin-LEDs at room temperature based on the chiral-induced spin selectivity (CISS) effect.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Donor-modified asymmetric N/B/O multi-resonance TADF emitters for high-performance deep-blue OLEDs with the BT.2020 color gamut

Chem. Sci., 2024, 15,18135-18145
DOI: 10.1039/D4SC04896B, Edge Article
Open Access
Jing Jin, Zhaolong He, Di Liu, Yongqiang Mei, Jiahui Wang, Huihui Wan, Jiuyan Li
Spiro-acridine modified N/B/O type MR-TADF emitters realized deep blue fluorescence with an EQEmax of 20.5% and CIE (0.147, 0.048), which is state-of-the-art efficiency for N/B/O type deep-blue MR emitters with CIEy approaching the BT.2020 standard.
The content of this RSS Feed (c) The Royal Society of Chemistry




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New phosphor for LEDs with deep-red-light emission

Cerium-doped nitride compound may lead to applications in horticultural lighting




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Nocturnal use of LEDs negatively affects freshwater microorganisms, Germany

Almost a quarter of the world’s non-polar land surface experiences light pollution, and there is concern that this adversely affects illuminated ecosystems. Currently there is a global move from yellow sodium lighting to white LED lighting, which emits different wavelengths of light. A recent study found that LED artificial light at night (ALAN) reduced the biomass of periphyton by 62% in a freshwater drainage ditch in Westhavelland Nature Park, Brandenburg, Germany.




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Are waste LEDs hazardous?

Light Emitting Diodes (LEDs) are an energy efficient and mercury-free source of lighting, but like other electronic goods they could have some negative environmental impacts, according to research. A US study tested a selection of LEDs and found that they could be classified as hazardous waste owing to levels of lead, copper, nickel and silver. Their use of rare earth metals could also increase pressure on natural resources.




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Physics-defying LEDs light the way to a brighter cleantech future

A light-emitting diode (LED) developed at MIT operates at 230-percent efficiency. That's not a typo. LEDs will provide 70 percent of the world's general lightin



  • Research & Innovations

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Philips Hue LEDs take smart bulbs to a whole new level

RGB-type LED bulbs like the Philips Hue give you a lot of control and they're a lot of fun, too.



  • Gadgets & Electronics

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Price of budget-friendly LEDs to drop further with Energy Star certification

Thanks to Energy Star qualification, the most affordable high-quality LED on the market, the Cree LED Bulb, just got even cheaper.



  • Gadgets & Electronics

leds

How blue LEDs changed the world

Without blue LEDs, the world wouldn't have backlit smartphones, TV and computer LCD screens and many other technological marvels.



  • Research & Innovations

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Night skiing is even cooler if you're covered in LEDs

A vivid new video follows skiers in LED-studded suits as they slice up Alaskan slopes after dark.



  • Fitness & Well-Being

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How LEDs can save sea turtles' lives

LEDs can stop sea turtles from dying in fishing nets, a new study finds, and without limiting how many fish are caught.




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oscon: RT @andreabledsoe: So proud our #womenintech resource center is live, w/ great articles +enter to win a #OSCON scholarship...

oscon: RT @andreabledsoe: So proud our #womenintech resource center is live, w/ great articles +enter to win a #OSCON scholarship...




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AN3444 Driving LEDs with Constant Current and Sequential Linear LED Drivers

AN3444 Driving LEDs with Constant Current and Sequential Linear LED Drivers




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Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.




leds

Illuminating Homes with LEDs in India: Rapid Market Creation Towards Low-carbon Technology Transition in a Developing Country

This paper examines a recent, rapid, and ongoing transition of India's lighting market to light emitting diode (LED) technology, from a negligible market share to LEDs becoming the dominant lighting products within five years, despite the country's otherwise limited visibility in the global solid-state lighting industry.