Anomalous Ambipolar Phototransistors Based on All-Inorganic CsPbBr3 Perovskite at Room Temperature

doi:10.1002/adom.201900676

CIOMP OpenIR

	Anomalous Ambipolar Phototransistors Based on All-Inorganic CsPbBr3 Perovskite at Room Temperature
	Y.T.Zou; F.Li; C.Zhao; J.Xing; Z.Yu; W.L.Yu; C.L.Guo
	2019
发表期刊	Advanced Optical Materials
ISSN	ISSN2195-1071
卷号	7 期号:21 页码:9
摘要	Despite its extensive research in photovoltaics and light emitting diodes;the charge transport properties of all-inorganic perovskite cesium lead bromide (CsPbBr3) remain elusive. Clarification of the intrinsic charge transport of this perovskite material is highly desirable;which will help to understand its working mechanism and fabricate high performance electronic devices. Here;it is demonstrated that the phototransistors based on CsPbBr3 microplates show anomalous ambipolar transport characteristics at room temperature. The hole mobility shows light dependence;while the electron mobility is identical under various light incidence. The hole mobility increases from 0.02 cm(2) V-1 s(-1) (in dark conditions) to 0.34 cm(2) V-1 s(-1) (50 mW cm(-2)); while the threshold voltage is shifted by 14 V when electron is the majority charge carrier. The anomalous transport behavior can be attributed to the photovoltaic and photoconductive effects. Moreover;the device shows photoresponsivity and detectivity up to 110 mA W-1 and 4.5 x 10(13) Jones;respectively;under 532 nm laser illumination. This research unveils the charge transport mechanism of CsPbBr3 perovskite;provides more evidence and will thus contribute to the perovskite electronic and optoelectronic researches.
关键词	charge transport,field effect transistors,mobility,perovskites,phototransistors,field-effect transistors,light-emitting-diodes,halide,perovskites,high-efficiency,mobility,performance,transport,tin,Materials Science,Optics
DOI	10.1002/adom.201900676
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/62717
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y.T.Zou,F.Li,C.Zhao,et al. Anomalous Ambipolar Phototransistors Based on All-Inorganic CsPbBr3 Perovskite at Room Temperature[J]. Advanced Optical Materials,2019,7(21):9.
APA	Y.T.Zou.,F.Li.,C.Zhao.,J.Xing.,Z.Yu.,...&C.L.Guo.(2019).Anomalous Ambipolar Phototransistors Based on All-Inorganic CsPbBr3 Perovskite at Room Temperature.Advanced Optical Materials,7(21),9.
MLA	Y.T.Zou,et al."Anomalous Ambipolar Phototransistors Based on All-Inorganic CsPbBr3 Perovskite at Room Temperature".Advanced Optical Materials 7.21(2019):9.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Anomalous Ambipolar （1375KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载