Polarization-resolved black phosphorus/molybdenum disulfide mid-wave infrared photodiodes with high detectivity at room temperature
James Bullock, Matin Amani, Joy Cho, Yu-Ze Chen, Geun Ho Ahn, Valerio Adinolfi, Vivek Raj Shrestha, Yang Gao, Kenneth B Crozier, Yu-Lun Chueh, Ali Javey
NATURE PHOTONICS | NATURE PUBLISHING GROUP | Published : 2018
Infrared photodetectors are currently subject to a rapidly expanding application space, with an increasing demand for compact, sensitive and inexpensive detectors. Despite continued advancement, technological factors limit the widespread usage of such detectors, specifically, the need for cooling and the high costs associated with processing of iii–v/ii–vi semiconductors. Here, black phosphorous (bP)/MoS2 heterojunction photodiodes are explored as mid-wave infrared (MWIR) detectors. Although previous studies have demonstrated photodiodes using bP, here we significantly improve the performance, showing that such devices can be competitive with conventional MWIR photodetectors. By optimizing t..View full abstract
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Awarded by Defence Advanced Research Projects Agency
Awarded by Australian Research Council
The authors thank P. Wijewarnasuriya and E. DeCuir from the US Army Research Laboratory for discussions. This work was supported by the Defence Advanced Research Projects Agency under contract no. HR0011-16-1-0004. K.B.C. acknowledges funding from the Australian Research Council (DP150103736 and FT140100577) and an Innovation Fellowship from the Victorian Endowment for Science, Knowledge and Innovation (VESKI).