Performance and stability-enhanced inorganic perovskite light-emitting devices by employing triton X-100

• 作者: Ao Chen Peng Wang Tao Lin Ran Liu Bo Liu Quan-Jun Li Bing-Bing Liu
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY
• 页码范围: 716-720
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/1674-1056/abcf47

摘要

Significantly enhanced electroluminescence performance and stability of all-inorganic perovskite light-emitting de-vices(PeLEDs)have been achieved by adding triton X-100 into the perovskite precursors.The small perovskite grains arranged tightly and formed large grains as the triton X-100 were introduced.Thus the nonradiative defects originated from Pb atoms at the grain boundaries were highly passivated by triton X-100 and resulted in the promotion of PeLED performance,including a turn-on voltage of 3.2 V,a brightness of 63500 cd/m2,a current efficiency of 17.4 cd/A,and a prolonged lifetime of 2 h in air.