中国科学院化学研究所机构知识库
Advanced  
ICCAS OpenIR  > 其它  > 期刊论文
题名: Ultrafast formation of interlayer hot excitons in atomically thin MoS2/WS2 heterostructures
作者: Chen, Hailong1, 2; Wen, Xiewen1, 2, 3; Zhang, Jing4, 5; Wu, Tianmin6; Gong, Yongji2, 3; Zhang, Xiang2, 3; Yuan, Jiangtan3; Yi, Chongyue2; Lou, Jun3; Ajayan, Pulickel M.3; Zhuang, Wei7; Zhang, Guangyu4, 5; Zheng, Junrong1, 2
刊名: NATURE COMMUNICATIONS
发表日期: 2016-08-01
卷: 7
收录类别: SCI
英文摘要: Van der Waals heterostructures composed of two-dimensional transition-metal dichalcogenides layers have recently emerged as a new family of materials, with great potential for atomically thin opto-electronic and photovoltaic applications. It is puzzling, however, that the photocurrent is yielded so efficiently in these structures, despite the apparent momentum mismatch between the intralayer/interlayer excitons during the charge transfer, as well as the tightly bound nature of the excitons in 2D geometry. Using the energy-state-resolved ultrafast visible/infrared microspectroscopy, we herein obtain unambiguous experimental evidence of the charge transfer intermediate state with excess energy, during the transition from an intralayer exciton to an interlayer exciton at the interface of a WS2/MoS2 heterostructure, and free carriers moving across the interface much faster than recombining into the intralayer excitons. The observations therefore explain how the remarkable charge transfer rate and photocurrent generation are achieved even with the aforementioned momentum mismatch and excitonic localization in 2D heterostructures and devices.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35343
Appears in Collections:其它_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
2.Rice Univ, Dept Chem, 6100 Main St, Houston, TX 77005 USA
3.Rice Univ, Dept Mat Sci & NanoEngn, 6100 Main St, Houston, TX 77005 USA
4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
6.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China
7.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Chen, Hailong]'s Articles
[Wen, Xiewen]'s Articles
[Zhang, Jing]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Chen, Hailong]‘s Articles
[Wen, Xiewen]‘s Articles
[Zhang, Jing]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院化学研究所 - Feedback
Powered by CSpace