兴奋剂
钙钛矿(结构)
纳米晶
电化学
材料科学
发光二极管
价(化学)
可见光谱
荧光粉
二极管
化学工程
纳米技术
光电子学
卤化物
化学
结晶学
无机化学
电极
物理化学
有机化学
作者
Jan Mulder,Indy du Fossé,Maryam Alimoradi Jazi,Liberato Manna,Arjan J. Houtepen
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2021-06-17
卷期号:6 (7): 2519-2525
被引量:11
标识
DOI:10.1021/acsenergylett.1c00970
摘要
Lead halide perovskite nanocrystals have drawn attention as active light-absorbing or -emitting materials for opto-electronic applications due to their facile synthesis, intrinsic defect tolerance, and color-pure emission ranging over the entire visible spectrum. To optimize their application in, e.g., solar cells and light-emitting diodes, it is desirable to gain control over electronic doping of these materials. However, predominantly due to the intrinsic instability of perovskites, successful electronic doping has remained elusive. Using spectro-electrochemistry and electrochemical transistor measurements, we demonstrate here that CsPbBr3 nanocrystals can be successfully and reversibly p-doped via electrochemical hole injection. From an applied potential of ∼0.9 V vs NHE, the emission quenches, the band edge absorbance bleaches, and the electronic conductivity quickly increases, demonstrating the successful injection of holes into the valence band of the CsPbBr3 nanocrystals.
科研通智能强力驱动
Strongly Powered by AbleSci AI