Results 131 to 140 of about 9,229,760 (269)

Experimental Study on Classification of Solar Cell Defects from Electroluminescence Imaging Based on Deep Convolutional Neural Networks

Kongzhi Yu Xinxi Jishu
Electroluminescence (EL) imaging can sensitively reflect internal defects in solar cells, yet analyzing these images presents challenges due to high complexity, defect diversity, and large data volumes. To address the lack of criteria for model selection
BI Ying, ZHANG Rongqiao, CHANG Yaxin, ZHANG Tuo   +3 more
doaj  

Hydrogen Bonding Denticity Governs Surface Modulation in Inorganic Perovskite Nanocrystals

Small, EarlyView.
Organic cations with distinct hydrogen‐bonding denticities enable systematic modulation of perovskite nanocrystal surfaces. Increasing denticity from mono‐dentate MA+ to bi‐dentate FA+ and multi‐dentate GA+ strengthens interactions with surface iodides, effectively suppressing surface defects.
Jiaxin Song, Gyeong Eun Seok, Junsu Son, Woo Hyeon Jeong, Dong Gyu Lee, Sung Woo Jang, Xinyu Shen, Gayoung Seo, Zhongkai Yu, Dongyeong Gim, Jongmin Choi, Won Bin Im, Tae Kyung Lee, Minjeong Ha, Bo Ram Lee   +14 more
wiley   +1 more source

Morphological Stabilization of CsPbBr3 Quantum Dot Films Enabled by PVC‐g‐PMMA Graft Copolymer Encapsulation for Water‐Robust Color Conversion

Small, EarlyView.
Poly(vinyl chloride)‐graft‐poly(methyl methacrylate) encapsulation enabled formation of water‐stable CsPbBr3‐quantum‐dot fims with enhanced photoluminescence (PL) retention upon exposure to water, UV radiation, and ethanol. Time‐dependent ex situ transmission electron microscopy with quantitative particle segmentation identified the coefficient of ...
Seung Ryeol Song, Kyungwon Seo, Uoon Chul Baek, Min‐Gon Shin, Chanwung Mun, Hyosung An, Jung Tae Park   +6 more
wiley   +1 more source

Enhanced Efficiency and Thermal Stability in All‐Polymer p‐i‐n Organic Photovoltaics With Synergistically Designed Second Polymer Acceptor

Small, EarlyView.
Incorporation of a synergistic selenophene‐substituted acceptor, PYISe‐BO‐OD into PYIT‐OD, enabled PM6/PYIT‐OD:PYISe‐BO‐OD all‐polymer p‐i‐n organic photovoltaics with PCE and T80 value of 19.1% and 3415 h, substantially outperforming PM6/PYIT‐OD devices (16.3%, 937 h).
Tzu‐Ching Lu, Bin Chang, Yu‐Wei Su, Bing‐Huang Jiang, Chi‐Hsuan Lee, Chung‐Hao Chen, Chih‐Ping Chen, Atsushi Yabushita, Chun‐Wei Pao, Kung‐Hwa Wei   +9 more
wiley   +1 more source

Suppression of stacking-fault expansion in 4H-SiC diodes by helium implantation

Applied Physics Express
Bipolar degradation is a critical problem in Silicon carbide devices, caused by the expansion of single Shockley stacking faults (1SSFs) from basal plane dislocations.
Tong Li, Hitoshi Sakane, Shunta Harada, Masashi Kato   +3 more
doaj   +1 more source

Quantum Dot‐Based Color Conversion Layers for Displays, Lighting, and Emerging Technologies

Small, EarlyView.
This review summarizes recent advances in quantum dot‐based color conversion layers (QD‐CCLs), spanning from Cd‐based and perovskite nanocrystals to heavy‐metal‐free alternatives, and covering structural implementations across rigid, flexible, and stretchable platforms.
Kiwook Kim, Jinhee Lee, Jongseok Bae, Jiwoong Yang   +3 more
wiley   +1 more source

Facile one‐step synthesis of efficient hybridized local and charge transfer emitter for ultraviolet electroluminescence with low roll‐off

Smart Molecules, EarlyView.
An effective hybridized local and charge‐transfer emitter D3CZ4F featuring multiple C–H⋯F locking interactions was developed, achieving an outstanding EQE of 8.97%, a small roll‐off, an emission peak at 388 nm, and color coordinates of (0.165, 0.025), respectively.
Shengnan Wang, Jixiang Wang, Danyu Xie, Ling Peng, Yuchao Liu, Junjie Wang, Shian Ying, Dongge Ma, Shouke Yan   +8 more
wiley   +1 more source

Metal Halide Perovskite Quantum Dots for Luminescence Sensing and Imaging

Nano Select
Metal halide perovskite quantum dots (PQDs) exhibit strong optical absorption, high photoluminescence quantum yields, spectrally narrow and adjustable emission, and high defect tolerance.
Tooba Hallaj, Rana Salari, Seyyed Morteza Seyyed Alavi, Muhammad Munir, Niko Hildebrandt, Mohammad Amjadi   +5 more
doaj   +1 more source

Research on Self‐Identification Technology of Zero‐Value Insulators in Distribution Lines Based on Electroluminescence Effect

High Voltage, EarlyView.
ABSTRACT To address the issue of low detection accuracy for zero‐value insulators in distribution lines, this study proposes a novel method for detecting these insulators based on the electroluminescence effect. Through theoretical analysis and experimentation, it was found that the luminescence intensity of ZnS:Cu electroluminescent material varies ...
Jianghai Geng, Minghongtian Chen, Yunpeng Liu, Bo Peng, Yuming Zhang, Songsong Zhou, Ping Wang   +6 more
wiley   +1 more source

AI‐Based PV Fault Detection: Benchmarking Indicators and Feature Selection Methods

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 12, Page 1603-1616, December 2026.
This article benchmarks indicators for automated defect detection in photovoltaic modules. The methodology has three phases: generating a simulated ideal defect‐free I‐V curve, comparing it with experimental measurements under standard test conditions, calculating indicators, and applying a feature‐selection strategy to identify the most relevant ...
Cristian Terrados‐López, Diego Granados‐López, Jesús‐Marcos García‐Alonso, David Gonzalez‐Peña, Cristina Alonso‐Tristán   +4 more
wiley   +1 more source