Epitaxial Ultrathin Organic Crystals on Graphene for High‐Efficiency Phototransistors. Issue 26 (4th May 2016)

• Record Type: Journal Article
• Authors: Liu, Xiaolong; Luo, Xiaoguang; Nan, Haiyan; Guo, Hui; Wang, Peng; Zhang, Linglong; Zhou, Minmin; Yang, Ziyi; Shi, Yi; Hu, Weida; Ni, Zhenhua; Qiu, Teng; Yu, Zongfu; Xu, Jian‐Bin; Wang, Xinran
• Is Part Of: Advanced materials. Volume 28:Issue 26(2016)
• Page Start: 5200
• Page End: 5205
• Publication Date: 2016-05-04
• Subjects: 2D -- organic semiconductors -- ultrathin -- graphene -- phototransistors; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201600400
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Epitaxially grown ultrathin organic semiconductors on graphene show great promise as highly efficient phototransistors. The devices exhibit a strong photoresponse down to the limit of a monolayer organic crystal, with a photoresponsivity higher than 10 4 A W −1 and a photoconductive gain over 10 8 . The excellent performance is attributed to the high quality of the organic crystal and interface, a unique feature of van der Waals epitaxy.