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High-Efficiency Semitransparent Light-Emitting Diodes with Perovskite Nanocrystals.
Wan, Qun; Huang, Lu; Kong, Long; Zhang, Qinggang; Zhang, Congyang; Liu, Mingming; Liao, Xinrong; Zhan, Wenji; Zheng, Weilin; Yuan, Changwei; He, Mengda; Li, Liang.
Afiliação
  • Wan Q; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Huang L; School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Kong L; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Zhang Q; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Zhang C; Department of Electronic Engineering, School of Electronics Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Liu M; Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), Onna-son, Kunigami-gun, Okinawa 904-0495, Japan.
  • Liao X; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Zhan W; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Zheng W; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Yuan C; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • He M; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
  • Li L; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
ACS Appl Mater Interfaces ; 14(17): 19697-19703, 2022 May 04.
Article em En | MEDLINE | ID: mdl-35438955
ABSTRACT
Artificial intelligence offers new opportunities for translucent displays. However, achieving translucent light-emitting diodes (LEDs) with high efficiency and high color purity remains a challenge. Here, we propose a strategy of using an alkali metal/inert metal (calcium/silver) bilayer metal electrode as a top electrode and perovskite nanocrystals as an emitter layer in the device structure, which allows us to not only fabricate excellent opaque LEDs but also manufacture highly efficient semitransparent LEDs with high color purity, total brightness (over 7000 cd m-2), total external quantum efficiency (over 12%), and 56% transmittance around 520 nm. This is the highest external quantum efficiency report about semitransparent LED based on perovskite materials or inorganic quantum dots so far, which presents great application potential in the field of translucent display with high color purity and wide color gamut.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Assunto da revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Assunto da revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China