Results 51 to 60 of about 86 (77)

Dibenzofuran‐Modulated Narrowband Red MR‐TADF Emitters for BT.2020 OLEDs With Ultralow Roll‐Off and Long Lifetime

Small, EarlyView.
A materials‐to‐device strategy enabling high‐efficiency, longer‐lifetime narrowband red OLEDs. Dibenzofuran‐integrated BNO MR‐TADF emitters provide tunable red emission (611–633 nm) with high color purity. Exciplex‐assisted PSF devices achieve 31.6% EQE, <1% roll‐off at 5000 cd m−2, and LT90 584 h @ 5000 cd/m2.
Meghana Tirupati, Nisha Vergineya S, Odugu Pavan Kumar, Aradhya Rajput, Hae Ung Kim, Jun Yun Kim, Subramanian Muruganantham, Jang Hyuk Kwon   +7 more
wiley   +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

Quantifying Perovskite Solar Cell Degradation via Machine Learning From Spatially Resolved Multimodal Luminescence Time Series

Solar RRL, Volume 10, Issue 15, 17 August 2026.
LumPerNet combines automated aging, multimodal luminescence imaging, and leakage‐aware deep learning to predict perovskite solar cell efficiency retention. By combining PLoc, PLsc, EL images, and device‐specific reference states, the framework captures degradation‐relevant optical signatures and shows that global luminescence evolution, complemented by
Giulio Barletta, Simon Ternes, Saif Ali, Zohair Abbas, Chiara Ostendi, Marialucia D’Addio, Erica Magliano, Pietro Asinari, Eliodoro Chiavazzo, Aldo Di Carlo   +9 more
wiley   +1 more source

High Efficiency 3‐Tandem Top Emitting Pure‐Blue OLEDs Beyond the BT.2020 Blue Standard

Advanced Optical Materials, Volume 14, Issue 29, 7 August 2026.
We report a high‐efficiency ultrapure‐blue 3‐tandem TEOLED through synergistic optimization of a narrowband MR‐TADF emitter, Purcell‐based cavity design, and pure Ag cathode/CPL structure. The optimized device achieves 463 nm emission, an ultranarrow FWHM of 10 nm, CIE y of 0.040, and a blue index of 1,596 cd/A/y, surpassing the BT.2020 blue standard ...
Jun Hyeog Oh, Se Chan Cha, Hyunmin Cho, Hyeong Geun Jo, Nisha Vergineya S, Jang Hyuk Kwon   +5 more
wiley   +1 more source

Fluorescence Tuning of Carbon Dots from Red to Blue via UV‐Induced Photochemical Etching

Advanced Science, Volume 13, Issue 43, 3 August 2026.
A UV‐driven photochemical process enables continuous color evolution of carbon dots from red to blue using a single irradiation parameter. Progressive photoetching restructures graphitic domains and surface states, allowing full visible‐spectrum emission control.
Nanzhi Zheng, Yuchen Yang, Jingwei Xu, Jincheng Gan, Yinuo An, Xinyu Li, Guohua Chen   +6 more
wiley   +1 more source

A Kinetic–Energetic Bottleneck of Charge‐Transfer Injection Governs Energy Loss in Organic Solar Cells

Advanced Energy Materials, Volume 16, Issue 30, 12 August 2026.
Kinetic–energetic projection of time‐resolved photoluminescence reveals that charge‐transfer injection acts as a universal bottleneck in organic solar cells. A physics‐constrained Bayesian framework identifies an emergent effective CT injection rate governing the trade‐off between charge generation and nonradiative energy loss.
Rong Wang, Tobias Osterrieder, Atul Shukla, Christos L. Chochos, Vasilis G. Gregoriou, Yakun He, Hua Tang, Julian Matthias Haffner‐Schirmer, Karen Forberich, Ning Li, Thomas Heumueller, Frédéric Laquai, Jens Hauch, Safa Shoaee, Dieter Neher, Larry Lüer, Christoph J. Brabec   +16 more
wiley   +1 more source

Flexible perovskite solar modules: Fabrication strategies and future prospects

InfoMat, Volume 8, Issue 8, August 2026.
We first systematically summarized the fabrication strategies for flexible perovskite solar modules, including scalable coating and printing, interface engineering, low‐temperature crystallization, and mechanical reliability design. Then we emphasize how process control, material design, and module integration work together to enable high‐performance ...
Nan Wang, Bin Li, Lixin Hou, Xuemei Ji, Seong Sik Shin, Fei Zhang   +5 more
wiley   +1 more source

Metal Halide Perovskite Quantum Dots for Luminescence Sensing and Imaging

Nano Select, Volume 7, Issue 8, August 2026.
This review highlights recent advances in metal halide perovskite quantum dots (PQDs)‐based photoluminescence, chemiluminescence, and electroluminescence sensing methods, as well as bioimaging applications. Key challenges, potential solutions, and future opportunities are discussed to guide the development of robust PQD‐based sensing platforms ...
Tooba Hallaj, Rana Salari, Seyyed Morteza Seyyed Alavi, Muhammad Munir, Niko Hildebrandt, Mohammad Amjadi   +5 more
wiley   +1 more source

Simulation Insights Into Enhanced Emitter Contact Passivation via LECO on Industrial TOPCon Solar Cells

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 8, Page 1010-1022, August 2026.
Numerical simulations were employed to boost industrial TOPCon cells from 25.5% to 26.07% by suppressing J0e,metal,eff without compromising ρc with a dual optimization strategy: (1) engineering the selective emitter sheet resistance (Rsh_SE) to 117 Ω/□ and (2) reducing the LECO‐induced partial metal contact ratio (fpmc) to 1%.
Jiayu Xu, Yun Qin, Zhiyuan Zhang, Wei Fan, Wu Zhang, Qun Liu, Jiaji Lin, Yuhao Cheng, Ning Song, Bram Hoex, Lang Zhou, Fa‐Jun Ma   +11 more
wiley   +1 more source

High‐Performance Near‐Infrared Organic Light‐Emitting Diodes Based on Grating‐Structured Hole Transport Layer

Small Structures, Volume 7, Issue 8, August 2026.
High‐performance near‐infrared (NIR) organic light‐emitting diodes (OLEDs) were achieved by incorporating a one‐dimensional Bragg grating into a thermally cross‐linkable hole‐transporting layer via microtransfer molding. The optimized devices exhibit an emission peak at 880 nm, a maximum external quantum efficiency of 1.55%, and a peak radiant exitance
Yuhang Xu, Wanyuan Deng, Zhiyuan Cong, Weiping Wang, Chao Gao, Hongbin Wu   +5 more
wiley   +1 more source