P. S. Parfenov, Ya. V. Grinevich, A. V. Sokolova, A. A. Babaev, I. D. Skurlov, S. A. Cherevkov, I. E. Kolesnikov, A. P. Litvin, “Effect of ligands on the photoconductivity of HgTe nanoplatelets”, Optics and Spectroscopy, 2022, Volume 130, Issue 11,Pages <nobr>1755

UV, IR, and terahertz optics

Effect of ligands on the photoconductivity of HgTe nanoplatelets

P. S. Parfenov^a, Ya. V. Grinevich^a, A. V. Sokolova^a, A. A. Babaev^a, I. D. Skurlov^a, S. A. Cherevkov^a, I. E. Kolesnikov^b, A. P. Litvin^a

^a Center of Information Optical Technology, ITMO University
^b St. Petersburg State University, Resource Center for Optical and Laser Materials Research

Abstract: Near-IR semiconductor colloidal nanoplatelets (NPs) are a new and promising class of materials for the development of photodetectors because they can effectively absorb visible and infrared optical radiation. In this work, we study the photoconductivity of HgTe colloidal nanoplatelets with ligands of 1,2-ethanedithiol and tetrabutylammonium iodide. It has been shown that the choice of ligands is a key factor in achieving high operational characteristics. It has been shown that the photoconductivity sensitivity reaches 0.995 and the specific detectivity reaches 1.2 $\cdot$ 10$^9$ J Jones when 1,2-ethadithiol is used as ligands.

Keywords: Near-IR, photodetectors, specific detectivity, EDT, TBAI.

Received: 18.07.2022
Revised: 17.08.2022
Accepted: 30.08.2022

DOI: 10.21883/OS.2022.11.53785.3871-22