Results 81 to 90 of about 3,503,170 (292)

Targeted elimination of tetravalent-Sn-induced defects for enhanced efficiency and stability in lead-free NIR-II perovskite LEDs

Nature Communications
Eco-friendly Sn-based perovskites show significant potential for high-performance second near-infrared window light-emitting diodes (900 nm – 1700 nm).
Xiang Guan, Yuqing Li, Yuanyuan Meng, Kongxiang Wang, Kebin Lin, Yujie Luo, Jing Wang, Zhongtao Duan, Hong Liu, Liu Yang, Lingfang Zheng, Junpeng Lin, Yalian Weng, Fengxian Xie, Jianxun Lu, Zhanhua Wei   +15 more
doaj   +1 more source

Solar Simulator on the Basis of Powerful Light-Emitting Diodes

MATEC Web of Conferences, 2018
The Article describes the construction design and experimental results of the Solar Simulator, based on powerful LEDs with different radiation spectrum.
Aldoshina Oxana, Yugay Vyacheslav, Kaliaskarov Nurbol, Esenjolov Ulan, Nesipova Saltanat   +4 more
doaj   +1 more source

Near‐Infrared Light‐Activated Polydopamine Nanoparticles Conjugated With Transferrin Peptides for Enhanced Brain Accumulation

Advanced Healthcare Materials, EarlyView.
This study demonstrates that Tf‐PDA NPs combine a receptor‐mediated targeting with mild photothermal activation to enhance nanoparticle accumulation in the brain. NIR‐activated Tf‐PDA NPs increase BBB permeability to NPs in vitro and in vivo without inducing cytotoxicity or adverse immune responses.
Rafaela Ferrão, Susana Simões, Paulo Rodrigues‐Santos, Vitor Francisco, Akhilesh Rai, Lino Ferreira   +5 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes [PDF]

, 1998
Visible light emitting diodes of three different colors have been used to detect an absorbing compound (potassiumpermanganate) in trace quantities in aqueous solution.
Johnson, Mark, Hodgkinson, Jane, Dakin, John P.   +2 more
core   +1 more source

Resonant energy transfer in light harvesting and light emitting applications

, 2009
The performance of light emitting and light harvesting devices is improved by utilising resonant energy transfer. In lighting applications, the emission energy of a semiconductor heterostructure and the absorption of organic dyes or colloidal quantum ...
Chanyawadee, Soontorn
core   +1 more source

The formation of perovskite multiple quantum well structures for high performance light-emitting diodes

npj Flexible Electronics, 2018
Perovskite LEDs: annealing nails it Simple thermal annealing up to 100 degree Celsius leads to optimal device efficiency for mixed-cation halide perovskite light-emitting diodes.
Yan Sun, Li Zhang, Nana Wang, Shuting Zhang, Yu Cao, Yanfeng Miao, Mengmeng Xu, Hao Zhang, Hai Li, Chang Yi, Jianpu Wang, Wei Huang   +11 more
doaj   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Parametric Compact Thermal Models of Power LEDs

Energies, 2019
Light-emitting diodes are nowadays the most dynamically developing type of light sources. Considering that temperature is the main factor affecting the electrical and lighting parameters of these devices, thermal models are essential subcomponents of the
Marcin Janicki, Tomasz Torzewicz, Przemysław Ptak, Tomasz Raszkowski, Agnieszka Samson, Krzysztof Górecki   +5 more
doaj   +1 more source