Single-crystalline germanium nanomembrane photodetectors on foreign nanocavities

Zhenyang Xia, Haomin Song, Munho Kim, Ming Zhou, Tzu Hsuan Chang, Dong Liu, Xin Yin, Kanglin Xiong, Hongyi Mi, Xudong Wang, Fengnian Xia, Zongfu Yu, Zhenqiang Ma, Qiaoqiang Gan

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Abstract

Miniaturization of optoelectronic devices offers tremendous performance gain. As the volume of photoactive material decreases, optoelectronic performance improves, including the operation speed, the signal-to-noise ratio, and the internal quantum efficiency. Over the past decades, researchers have managed to reduce the volume of photoactive materials in solar cells and photodetectors by orders of magnitude. However, two issues arise when one continues to thin down the photoactive layers to the nanometer scale (for example,
Original languageEnglish (US)
JournalScience Advances
Volume3
Issue number7
DOIs
StatePublished - Jul 5 2017
Externally publishedYes

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