Improved performance of CsPbBr3 perovskite light-emitting devices by both boundary and interface defects passivation

Significantly enhanced luminance and current efficiency for inorganic light-emitting devices have been obtained by tetrabutylammonium bromide (TBAB) additive into perovskite precursors. Reduced nonradiative defects primarily passivated by TBAB and increased exciton binding energy are responsible for...

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Veröffentlicht in:	Nanoscale 2018-10, Vol.10 (38), p.18315-18322
Hauptverfasser:	Li, Song, Guo, Xiaoyang, Hu, Yongsheng, Lv, Ying, Lin, Jie, Fan, Yi, Zhang, Nan, Liu, Xingyuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Carrier transport Crystal defects Current efficiency Defects Efficiency Electroluminescence Grain boundaries Perovskites Quantum efficiency Tetrabutylammonium bromide X ray photoelectron spectroscopy
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