Si nanowire metal-insulator-semiconductor photodetectors as efficient light harvesters

Nanotechnology
Joonho BaeZhong Lin Wang

Abstract

Novel ITO-Si nanowire (NW) metal-insulator-semiconductor (MIS) photodetectors were fabricated by using n-type Si NWs as detection units and ITO films as top gate electrodes. Measurements on the Si NW based device reveal a significant photoresponse, including photocurrent generation with an external quantum efficiency (EQE) of approximately 35% at a peak wavelength of 600 nm at zero external bias, and with an EQE of 70% at a peak wavelength of 800 nm at - 0.5 V bias. The NW device shows a flat and low reflectance and almost constant EQE up to a 60 degrees incident angle of illumination, demonstrating efficient visible-light harvesting by the Si NW antenna.

References

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Citations

Dec 19, 2014·Nanoscale Research Letters·Dalin ZhangQiming Wang
Mar 17, 2011·Chemical Society Reviews·Tianyou ZhaiDmitri Golberg
Oct 17, 2014·Optics Express·Gwangseok YangJihyun Kim
Jun 24, 2015·Nanoscale Research Letters·Guanghan QianBoon Tong Goh
Dec 20, 2014·ACS Applied Materials & Interfaces·Sang Hoon LeeJae Min Myoung
Apr 12, 2013·Nanoscale Research Letters·Sudeshna SamantaArup Kumar Raychaudhuri
Oct 25, 2016·Advanced Science·Zheng Lou, Guozhen Shen
Aug 14, 2019·Advanced Science·Larysa BarabanGianaurelio Cuniberti
Jul 2, 2011·Nanotechnology·Yung-Ting ChenYang-Fang Chen
Mar 18, 2021·Optics Express·Longxin YuJianhua Zhang
Sep 30, 2017·Nano Letters·Eunhye BaekGianaurelio Cuniberti
Aug 9, 2017·ACS Applied Materials & Interfaces·Iuliana MihalacheMihaela Kusko

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