title: Epitaxy and photoresponse of two-dimensional GaSe crystals on flexible transparent mica sheets.
abstract: We present the controlled synthesis of high-quality two-dimensional (2D) GaSe crystals on flexible transparent mica substrates via a facile van der Waals epitaxy method. Single- and few-layer GaSe nanoplates with the lateral size of up to tens of micrometers were produced. The orientation and nucleation sites of GaSe nanoplates were well-controlled. The 2D GaSe crystal-based photodetectors were demonstrated on both mechanically rigid SiO2/Si and flexible mica substrates. Efficient photoresponse was observed in 2D GaSe crystal devices on transparent flexible mica substrates, regardless of repeated bending with different radii. The controlled growth of 2D GaSe crystals with efficient photoresponsivity opens up opportunities for both fundamental aspects and new applications in photodetectors.
authors.affiliation: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, People's Republic of China.
authors.forename: Yubing
authors.initials: Y
authors.lastname: Zhou
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Nie
authors.forename: Yujing
authors.initials: Y
authors.lastname: Liu
authors.forename: Kai
authors.initials: K
authors.lastname: Yan
authors.forename: Jinhua
authors.initials: J
authors.lastname: Hong
authors.forename: Chuanhong
authors.initials: C
authors.lastname: Jin
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jianbo
authors.initials: J
authors.lastname: Yin
authors.forename: Zhongfan
authors.initials: Z
authors.lastname: Liu
authors.forename: Hailin
authors.initials: H
authors.lastname: Peng