Midinfrared Electroluminescence from CdSe Quantum Dots

被引：0

作者：

Shen, Xingyu ^{[1
]}

Guyot-Sionnest, Philippe ^{[1
]}

机构：

[1] UNIV CHICAGO, JAMES FRANCK INST, CHICAGO, IL 60637 USA

来源：

ACS NANO | 2025年 / 19卷 / 05期

基金：

美国国家科学基金会;

关键词：

colloidal quantum dots; intraband; electroluminescence; CdSe; cascade; NANOCRYSTALS; RELAXATION; SURFACE; PHOTOLUMINESCENCE; EFFICIENT;

D O I：

10.1021/acsnano.4c18113

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Midinfrared electroluminescence from the electron intraband transition is demonstrated with intrinsic CdSe colloidal quantum dots. The device consists of a thin film of CdSe dots and a layer of ZnO nanocrystals, sandwiched between two electrodes that enhance light outcoupling at 5 mu m. At 100 mA and 15 V, the electron-to-photon efficiency is 0.40%, and the power conversion efficiency is 0.013%. The devices show good air and thermal stability. Electron transport layers and surface traps are discussed.

引用

页码：5811 / 5817

页数：7

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