Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
Adv Mater. 2016 Jun;28(23):4639-45. doi: 10.1002/adma.201600482. Epub 2016 Apr 6.
A stretchable photodetector with enhanced, strain-tunable photoresponsivity is developed based on crumpled graphene by engineering 2D graphene into 3D structures. This crumpled graphene photodetector demonstrates ≈400% enhanced photoresponsivity led by an order-of-magnitude enhanced extinction of graphene and 100% modulation in photoresponsivity with 200% applied strain. Finally, strain-tunable, wavelength-selective photodetection is shown by integrated colloidal photonic crystals-crumpled graphene photodetector devices.
基于褶皱石墨烯，通过将 2D 石墨烯工程化为 3D 结构，开发了一种具有增强的、应变可调的光响应率的可拉伸光电探测器。褶皱石墨烯光电探测器的光响应率提高了约 400%，这是由于石墨烯的消光增强了一个数量级，并且在施加 200%应变时，光响应率可达到 100%的调制。最后，通过集成胶体光子晶体-褶皱石墨烯光电探测器器件，实现了应变可调、波长选择的光电探测。
