Enhanced photoelectrical response of thermodynamically epitaxial organic crystals at the two-dimensional limit

doi:10.1038/s41467-019-08573-8

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

	Enhanced photoelectrical response of thermodynamically epitaxial organic crystals at the two-dimensional limit
	Cao, M ; Zhang, C ; Cai, Z ; Xiao, CC ; Chen, XS ; Yi, KY ; Yang, YG ; Lu, YH ; Wei, DC
刊名	NATURE COMMUNICATIONS
	2019
卷号	10 期号:-页码:—
关键词	FIELD-EFFECT TRANSISTORS HIGH-PERFORMANCE PHOTODETECTORS FILM MONOLAYER SEMICONDUCTORS MECHANISMS MORPHOLOGY NANOSHEET GRAPHENE
ISSN号	2041-1723
DOI	10.1038/s41467-019-08573-8
文献子类	期刊论文
英文摘要	Owing to strong light-matter interaction, two-dimensional (2D) organic crystal is regarded as promising materials for ultrasensitive photodetectors, however it still received limited success due to degraded photoelectrical response and problems in controllable growth. Here, we find the growth of 2D organic crystal obeys Gibbs-Curie-Wulff law, and develop a seed-epitaxial drop-casting method to grow millimeter-sized 1,4-bis(4-methylstyryl)benzene 2D crystals on SiO2/Si in a thermodynamically controlled process. On SiO2/Si, a distinct 2D limit effect is observed, which remarkably enhances internal photoresponsivity compared with bulk crystals. Experiment and calculation show the molecules stack more compactly at the 2D limit, thus better molecular orbital overlap and corresponding changes in the band structure lead to efficient separation and transfer of photo-generated carriers as well as enhanced photo-gating modulation. This work provides a general insight into the growth and the dimension effect of the 2D organic crystal, which is valuable for the application in high-performance photoelectrical devices.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31605]
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.Zhejiang Univ, Int Ctr New Struct Mat, Hangzhou 310027, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China 3.Fudan Univ, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China; 4.Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China; 5.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China;
推荐引用方式 GB/T 7714	Cao, M,Zhang, C,Cai, Z,et al. Enhanced photoelectrical response of thermodynamically epitaxial organic crystals at the two-dimensional limit[J]. NATURE COMMUNICATIONS,2019,10(-):—.
APA	Cao, M.,Zhang, C.,Cai, Z.,Xiao, CC.,Chen, XS.,...&Wei, DC.(2019).Enhanced photoelectrical response of thermodynamically epitaxial organic crystals at the two-dimensional limit.NATURE COMMUNICATIONS,10(-),—.
MLA	Cao, M,et al."Enhanced photoelectrical response of thermodynamically epitaxial organic crystals at the two-dimensional limit".NATURE COMMUNICATIONS 10.-(2019):—.