Mid-infrared HgTe/As2S3 field effect transistors and photodetectors.

Lhuillier, Emmanuel; Keuleyan, Sean; Zolotavin, Pavlo; Guyot-Sionnest, Philippe · Adv Mater · 2013

basic_science · Level V

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Abstract

HgTe colloidal quantum dots (CQD) in an inorganic As(2)S(3) matrix allow 100-fold higher mobility with optimized transport properties compared to HgTe-organic CQD film while remaining intrinsic. The material's electronic properties are measured by field effect transistors as a function of temperature and the responsivity and detectivity of the mid-IR photoconductors are discussed.