Results 91 to 100 of about 2,168 (231)

Revisiting Open‐Circuit Voltage in Heterojunction‐Scarce Organic Solar Cells

Electron, EarlyView.
This work establishes an analytic framework based on the interplay between the composition‐driven density of states and geminate recombination for understanding the open‐circuit voltage of bulk heterojunction‐reduced organic solar cells. ABSTRACT Organic solar cells (OSCs) have reached power conversion efficiencies (PCEs) above 21%, yet their market ...
Zeyu Wang, Chao Zhao, Wei Ma, Han Yan
wiley   +1 more source

Flexible white thermally activated delayed fluorescence polymer with alkyl spacer and side‐chain encapsulation for efficient solution‐processed white organic light‐emitting diodes

FlexMat, EarlyView.
A “gemstone‐necklace” FASCE strategy synthesizes single‐component white polymers (PTF‐Qx) by alternating rigid TADF units with flexible alkyl chains. The non‐doped rigid device achieves a high EQE of 15.66% with stable white emission (CIE: 0.36, 0.46).
Wenhao Zhang, Hongyu Zhuang, Xinxin Ban, Shilong Feng, Tao Xu, Youqiang Qian, Shun Hu, Aiyun Zhu   +7 more
wiley   +1 more source

A Multimodal Data-Driven Framework for Failure Analysis and Performance Degradation of Photovoltaic Panels in Smart City Applications

IEEE Access
This study investigates the long-term aging effects and structural degradation mechanisms of photovoltaic (PV) modules integrated into smart city furniture, with a particular focus on panels of 10 W, 25 W, and 40 W nominal ratings.
Eren Parladi, Ertugrul Adiguzel
doaj   +1 more source

A review of conducting polymers in electrical contact applications

, 2007
A review of recent developments in fretting studies in electrical contacts is presented, focusing on developments in conducting polymer surfaces. Fretting is known to be a major cause of contact deterioration and failure; commonly exhibited as the ...
Lam, Liza, McBride, J.W.
core  

Hot carrier-induced emission from the InGaN/GaN light-emitting diode by characterizing reverse-bias electroluminescence

, 2020
[[abstract]]Reverse-bias operations can test the robustness and screen the weaknesses of the light emitting diode device for a shorter period of several hours.
陳祥, Chen, H
core  

o‐Carborane‐based multi‐resonance thermally activated delayed fluorescence emitter exhibits highly efficient and multifunctional electroluminescence

FlexMat, EarlyView.
By strategically incorporating boron/nitrogen multi‐resonance (B/N‐MR) core into the o‐carborane unit, perfect exciton utilization can be achieved as well as exhibiting stimuli‐responsive properties. The resulting DBN‐oCb‐based organic light‐emitting diode (OLED) demonstrated an impressive external quantum efficiency of 22.3%, the highest reported for ...
Jiasen Zhang, Denghui Liu, Mengke Li, Tong Wang, Yuanyuan Meng, Deli Li, Shi‐Jian Su, Wei Li, Ziyi Ge   +8 more
wiley   +1 more source

Graphene oxide/exfoliated black phosphorus van der Waals heterojunctions for PEDOT:PSS‐free‐based organic light‐emitting diodes achieving excellent electroluminescence performance

FlexMat, EarlyView.
A novel two‐dimensional heterojunction assembled from graphene oxide and exfoliated black phosphorus via van der Waals interactions is proposed to replace widely used poly(3,4‐ethylenedioxythiophene)‐polystyrene sulfonate for efficient hole injection layer in organic light‐emitting diodes, achieving impressive electroluminescence performance.
Yuefeng Li, Xiaozhen Wei, Ruihao Yang, Shuyu Li, Jingkun Wang, Min Zhao, Yanqin Miao, Yuying Hao, Hua Wang, Kunping Guo   +9 more
wiley   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source

3D Printing of NinjaFlex Filament onto PEDOT:PSS-Coated Textile Fabrics for Electroluminescence Applications

, 2017
Electroluminescence (EL) is the property of a semiconductor material pertaining to emitting light in response to an electrical current or a strong electric field.
Vincent Nierstrasz, Wang, Lichuan,, Melkie Getnet Tadesse, Tadesse, Melkie Getnet,, Dumitrescu, Delia,, Chen, Yan,, Yan Chen, Lichuan Wang, Carmen Loghin, Loghin, Carmen,, Delia Dumitrescu, Nierstrasz, Vincent,   +11 more
core   +1 more source

Simultaneous measurement of optical and RF behavior under CW and pulsed Fully Active Harmonic Load-Pull [PDF]

, 2016
Here we present a system capable of simultaneous measurements of the RF and optical behavior of on-wafer devices, permitting the complete range of Fully Active Harmonic Load-Pull techniques to be employed while either observing optical phenomena such as ...
Kuball, Martin H H, Brazzini, Tommaso, Tasker, P. J., Casbon, M. A., Uren, Michael J   +4 more
core   +1 more source