title: Buckled Tin Oxide Nanobelt Webs as Highly Stretchable and Transparent Photosensors.
abstract: Stretchable and transparent inorganic semiconductors play a key role for the next generation of wearable optoelectronics. Achieving stretchability in intrinsically rigid inorganic materials is far more challenging than in polymers and metals. Here, we present a low-cost and scalable strategy to engineer inorganic semiconductors into a buckling open-mesh configuration, by which extraordinary stretchability (≈160%) as well as high optical transparency (>86% at 550 nm) can be realized simultaneously in SnO2 nanofiber webs. Moreover, the mechanical stretchability of SnO2 nanowebs can be further improved along with the optical transparency by precisely controlling the nanofiber density. The as-prepared freestanding nanowebs can be laminated onto curved surfaces by conformal contact. It is demonstrated that the fully exposed SnO2 nanowebs can be used as wearable UV photodetectors, showing reliable optoelectronic performance and remarkable tolerance to repeated complex deformations with body movements.
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.|Department of Physics and TcSUH, University of Houston, Houston, TX, 77204, USA.
authors.forename: Siya
authors.initials: S
authors.lastname: Huang
authors.affiliation: Department of Physics and TcSUH, University of Houston, Houston, TX, 77204, USA.
authors.forename: Chuan Fei
authors.initials: CF
authors.lastname: Guo
authors.affiliation: Centre of Advanced Mechanics and Materials, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Pan
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Xi
authors.initials: X
authors.lastname: Luo
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Chunsong
authors.initials: C
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Jianghong
authors.initials: J
authors.lastname: Gong
authors.affiliation: Centre of Advanced Mechanics and Materials, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Physics and TcSUH, University of Houston, Houston, TX, 77204, USA.
authors.forename: Zhi Feng
authors.initials: ZF
authors.lastname: Ren
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wu
keywords: electrospinning; nanobelts; nanowebs; photodetectors; photosensors, wearable electronics