am7b02123_si_001.pdf (1.29 MB)
Bendable Photodetector on Fibers Wrapped with Flexible Ultrathin Single Crystalline Silicon Nanomembranes
journal contribution
posted on 2017-03-29, 00:00 authored by Enming Song, Qinglei Guo, Gaoshan Huang, Bo Jia, Yongfeng MeiSilicon (Si) nanomembranes
(NMs) enable conformal covering on complicated
surfaces for novel applications. We adopt classical fibers as flexible/curved
substrates and wrap them with freestanding ultrathin Si-NMs with a
thickness of ∼20 nm. Intrinsic defects in single-crystalline
Si-NMs provide a flow path for hydrofluoric acid (HF) to release the
NM with a consecutive area of ∼0.25 cm2. Such Si-NMs
with ultralow flexural rigidities are transferred onto a single-mode
fiber (SMF) and functionalized into bendable photodetectors, which
detects the leaked light when the fiber is bent. Our demonstration
exemplifies optoelectronic applications in flexible photodetector
for Si-NMs in a three-dimensional (3D) geometry.
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flow pathsingle-crystalline Si-NMsoptoelectronic applicationsSMFHFSuch Si-NMsbendable photodetectorssingle-mode fiberfreestanding ultrathin Si-NMsBendable Photodetectorhydrofluoric acidFlexible Ultrathin Single Crystalline Silicon Nanomembranes Siliconnovel applicationsFibers WrappedIntrinsic defects
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