Results 121 to 130 of about 62,606 (295)

Imidazole Post‐Treated Self‐Assembled Monolayers for Inverted Perovskite Solar Cells

Advanced Science, EarlyView.
A post‐treatment strategy using imidazole derivatives (4,5‐DI and 4,5‐D‐2‐MI) enhances the Me‐4PACz/perovskite interface by improving wettability, promoting perovskite films, and optimizing energy level alignment, resulting in higher efficiency and improved stability in inverted perovskite solar cells.
Ihtesham Ghani, Shi Tingshu, Shehzad Ahmed, Zhuo Hongbin, Zhu Zirun, Yu Zhang, Peng You, Imran Muhammad, Tang Zeguo, Danish Khan   +9 more
wiley   +1 more source

Negative Activation Energy of Gate Reliability in Schottky-Gate p-GaN HEMTs: Combined Gate Leakage Current Modeling and Spectral Electroluminescence Investigation

IEEE Journal of the Electron Devices Society
For the first time, we use electrical characterization, spectrally-resolved electroluminescence measurements and degradation tests to explain the negative activation energy of gate reliability in power GaN HEMTs with p-GaN Schottky gate.
Manuel Fregolent, Mirco Boito, Michele Disaro, Carlo De Santi, Matteo Buffolo, Eleonora Canato, Michele Gallo, Cristina Miccoli, Isabella Rossetto, Giansalvo Pizzo, Alfio Russo, Ferdinando Iucolano, Gaudenzio Meneghesso, Enrico Zanoni, Matteo Meneghini   +14 more
doaj   +1 more source

Thin copolymer-cased light-emitting display made with fluorine-foped tin oxide substrates

Materials Research, 2004
Seven-segment displays are used to show numerical quantities in electronic equipment, being present in most of the low-end electronics. In this work we describe a novel organic light emitting display made with poly(1,10 decanedioxy 2 methoxy - 1,2 ...
Rudolf Lessmann, Ivo Alexandre Hümmelgen   +1 more
doaj   +1 more source

Defect Dynamics and Solution‐Processed Interconnects in Perovskite‐Organic Tandem Solar Cells

Advanced Science, EarlyView.
In this study, we identify the underlying cause of efficiency losses in WBG perovskites, which is ascribed to the presence of mobile defects distributed at surface regions. We further employ effective passivation agent with functional chemical groups to facilitate the healing of the mobile defects, thereby enhancing the VOC to 1.35 V and champion ...
Yingjie Hu, Qianyi Li, Kaifeng Jing, Jiangsheng Yu, Fuyi Zhou, Zhenhai Ai, You Chen, Yue Zhao, Yijia Zhang, Zhenyi Ni, Yang Bai, Gang Li, Guang Yang   +12 more
wiley   +1 more source

Circularly Polarized Phosphorescent Electroluminescence with a High Dissymmetry Factor from PHOLEDs Based on a Platinahelicene.

Journal of the American Chemical Society, 2016
Circularly polarized (CP) light is of interest in areas such as quantum optical computing, optical spintronics, biomedicine, and high efficiency displays. Direct emission of CP light from organic light-emitting diodes (OLEDs) has been a focus of research
Jochen R. Brandt, Xuhua Wang, Ying Yang, A. Campbell, M. Fuchter   +4 more
semanticscholar   +1 more source

Giant Isotope Effect in Metal–Organic Frameworks Boosts Unprecedented Photo‐ and Radio‐Luminescence Enhancement

Advanced Science, EarlyView.
Deuterated MOFs in this work exhibited unprecedented giant luminescence isotope effect via O─H oscillator suppression, achieving maximal solid‐state materials emission enhancement. This yields significantly improved X‐ray detection sensitivity and imaging resolution, marking the first integration of MOFs with isotopic luminescence and opening new ...
Junhao Lu, Dan Zhou, Xianhuan Hao, Hao Lu, Zhongyuan Zhang, Yuhuan Jia, Sen Mei, Ye Huang, Songbai Tang, Zhiyong Peng, Lanhua Chen, Mengjia Yuan, Lixi Chen, Shuaihua Wang, Meiling Feng, Yanlong Wang, Shuao Wang   +16 more
wiley   +1 more source

Dilution Effect for High‐Performance Multiple‐Component Near‐Infrared Organic Photodetectors

Advanced Science, EarlyView.
The dilution effect in multi‐component organic photodetector effectively suppresses non‐radiative decay and minimizes dark current, while energy‐level‐offset‐governed electron transfer between acceptors maintains efficient charge transport. This synergistic mechanism collectively enables remarkable device performance, including high detectivity and ...
Zhuang Li, Xunchang Wang, Xiaosong Qiu, Xinpeng Yang, Linming Bi, Jin Chen, Qian Wang, Yurong He, Jingyi Xiong, Renqiang Yang   +9 more
wiley   +1 more source

Methodology for Calculating the Damaged Surface and Its Relationship with Power Loss in Photovoltaic Modules by Electroluminescence Inspection for Corrective Maintenance

Sensors
Photovoltaic panels are exposed to various external factors that can cause damage, with the formation of cracks in the photovoltaic cells being one of the most recurrent issues affecting their production capacity.
Nieves Saborido-Barba, Carmen García-López, José Antonio Clavijo-Blanco, Rafael Jiménez-Castañeda, Germán Álvarez-Tey   +4 more
doaj   +1 more source

Recent advances on organic blue thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes (OLEDs)

Beilstein Journal of Organic Chemistry, 2018
The design of highly emissive and stable blue emitters for organic light emitting diodes (OLEDs) is still a challenge, justifying the intense research activity of the scientific community in this field. Recently, a great deal of interest has been devoted
Thanh-Tuân Bui, Fabrice Goubard, Malika Ibrahim-Ouali, Didier Gigmes, Frédéric Dumur   +4 more
doaj   +1 more source

Record‐High Performance Hyperfluorescent OLEDs Achieved via Electronic Structure Control of Chlorine‐Diversified MR‐TADF Emitters

Advanced Science, EarlyView.
A late‐stage diversification strategy for the benchmark MR‐TADF emitter ω‐DABNA enables precise electronic structure control via chlorine‐activated functionalization. The resulting derivatives achieve tunable emission from 523 to 533 nm with record‐high EQE1000 up to 34.0% and excellent color purity (CIEy = 0.70–0.73), establishing a versatile platform
Taehwan Lee, Junki Ochi, Shigetada Uemura, Feiran Liu, Jiping Hao, Yasuhiro Kondo, Masahiro Hayakawa, Takuji Hatakeyama   +7 more
wiley   +1 more source