Two-Dimensional Lead Monoxide: Facile Liquid Phase Exfoliation, Excellent Photoresponse Performance, and Theoretical Investigation

doi:10.1021/acsphotonics.8b01335

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Two-Dimensional Lead Monoxide: Facile Liquid Phase Exfoliation, Excellent Photoresponse Performance, and Theoretical Investigation
	Xing, CY ; Chen, X ; Huang, WC ; Song, YF ; Li, JH ; Chen, S ; Zhou, YH ; Dong, BQ ; Fan, DY ; Zhu, X
刊名	ACS PHOTONICS
	2018
卷号	5 期号:12 页码:5055-5067
关键词	PBO DEGRADATION OXIDES
ISSN号	2330-4022
DOI	10.1021/acsphotonics.8b01335
文献子类	期刊论文
英文摘要	Here, we report fabrication of two-dimensional (2D) lead monoxide (PbO) nanosheets by facile liquid phase exfoliation. The as-prepared 2D PbO nanosheets have circle and cut-circle shapes with a lateral dimension range of 200-400 nm and a thickness range of 10-15 nm and exhibit dominant beta-crystals with a robust chemical stability under ambient conditions. As a building block, the 2D PbO has been developed for photoelectrochemical (PEC)-type photodetectors that exhibited excellent as well as tunable photoresponse behaviors under illuminations of ultraviolet-visible lights. The first-principles density functional theory calculations further show that the band gap (E-g) of 2D PbO can be tuned by external electric field with a significant Stark effect. Moreover, differing from most transition metal dichalcogenide (TMD) materials, the 2D PbO structure, whose lowest empty states are dominated by the lead p orbitals, is exposed, which means that orbital modification of 2D PbO is accessible. Consequently, the E-g of PbO can be decreased in the KOH electrolyte by a possible Pb OH interaction, thus, broadening its absorption range for photodetection applications. In addition, the photoresponse behavior of 2D PbO-based photodetectors has long-term stability. This work may open the way for development of 2D PbO nanomaterials with promising applications.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31156]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China 2.Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China 3.Shenzhen Univ, Coll Optoelect Engn,Minist Educ, Shenzhen Engn Lab Phosphorene & Optoelect, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Shenzhen 518060, Peoples R China 4.Chinese Univ Hong Kong, Sch Sci & Engn, Shenzhen 518172, Peoples R China 5.Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Sch Civil Engn, Shenzhen 518060, Peoples R China
推荐引用方式 GB/T 7714	Xing, CY,Chen, X,Huang, WC,et al. Two-Dimensional Lead Monoxide: Facile Liquid Phase Exfoliation, Excellent Photoresponse Performance, and Theoretical Investigation[J]. ACS PHOTONICS,2018,5(12):5055-5067.
APA	Xing, CY.,Chen, X.,Huang, WC.,Song, YF.,Li, JH.,...&Zhang, H.(2018).Two-Dimensional Lead Monoxide: Facile Liquid Phase Exfoliation, Excellent Photoresponse Performance, and Theoretical Investigation.ACS PHOTONICS,5(12),5055-5067.
MLA	Xing, CY,et al."Two-Dimensional Lead Monoxide: Facile Liquid Phase Exfoliation, Excellent Photoresponse Performance, and Theoretical Investigation".ACS PHOTONICS 5.12(2018):5055-5067.