Results 51 to 60 of about 3,715 (146)

Electrically driven telecommunication wavelength single-photon source [PDF]

, 2007
An electrically driven ∼1.3μm single-photon source is demonstrated. The source contains InAs quantum dots within a planar cavity light-emitting diode.
Ward, MB, D. A. Ritchie, A. J. Shields, Yuan, Z. L., Karimov, OZ, Farrow, T., Z. L. Yuan, Farrow, T, O. Z. Karimov, Karimov, O. Z., Atkinson, P., P. Atkinson, Ward, M. B., Cooper, K., Yuan, ZL, Ritchie, D. A., See, P., Bennett, AJ, See, P, Bennett, Anthony, P. See, ,, Atkinson, P, A. J. Bennett, Shields, AJ, Shields, A. J., T. Farrow, K. Cooper, Cooper, K, Ritchie, DA, M. B. Ward   +30 more
core   +1 more source

Electroluminescence of Er:O-doped nano pn diode in silicon-on-insulator and its current-voltage characteristics at room temperature [PDF]

, 2020
Electroluminescence from erbium-doped nanoscale pn diodes was achieved. Decreasing the number of erbium ions in scaling light-emitting silicon devices decreases the emission intensity.
Ferrari G., Finazzi M., Tanii T., Prati E., Gi K., Bigoni S., Fujimoto T., Celebrano M., Shinada T.   +8 more
core   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

Electron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker, Adrien Baillard, Estelle Appert, Vincent Consonni   +3 more
wiley   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Electroluminescence of single silicon nanocrystals [PDF]

, 2004
We report on measurements of room-temperature electroluminescence from single silicon nanocrystals. The electrically driven emission reveals typical characteristics of single-nanocrystal luminescence: the peak wavelength variations, narrowing of spectral
Valenta, Jan,, Jan Valenta, Nenad Lalic, Jan Linnros, Lalic, Nenad,, Linnros, Jan,   +5 more
core   +1 more source

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

Electroluminescence Caused by the Transport of Interacting Electrons through Parallel Quantum Dots in a Photon Cavity [PDF]

, 2017
This work was financially supported by the Research Fund of the University of Iceland, the Icelandic Research Fund, grant no. 163082-051, and the Icelandic Instruments Fund.
Manolescu, Andrei, Gudmundsson, Vidar, Vidar Gudmundsson, Sitek, Anna, Andrei Manolescu, Goan, Hsi-Sheng, Nzar Rauf Abdulla, Anna Sitek, Hsi-Sheng Goan, Chi-Shung Tang, Abdullah, Nzar, Tang, Chi-Shung   +11 more
core   +1 more source

Carbonyl lock enables multi‐resonant organoboron framework with substantially enhanced spin‐flip and reduced emission bandwidth

FlexMat, EarlyView.
Integrating carbonyl lock onto multi‐resonant organoboron emitters is found to go beyond conventional bridge unit. It can not only suppress the molecular relaxation as conventional bridge, but also substantially affect electronic engineering via carbonyl integration, activating multiple up‐conversion channels, thus leading to an accelerated spin‐flip ...
Tingfeng Chen, Xin Xiong, Rajat Walia, Xiaochun Fan, Wei Liu, Xiankai Chen, Jia Yu, Kai Wang   +7 more
wiley   +1 more source