Influence of Sulfur Precursor Solutions on Crystallinity of CuInS₂ Nanocrystals Fabricated with Hot-Injection Method

Chong Deng; Bowen Fu; Lili Li; Yanlai Wang; Lin Yang

doi:10.1166/jnn.2020.17894

Influence of Sulfur Precursor Solutions on Crystallinity of CuInS₂ Nanocrystals Fabricated with Hot-Injection Method

J Nanosci Nanotechnol. 2020 Jul 1;20(7):4533-4536. doi: 10.1166/jnn.2020.17894.

Authors

Chong Deng¹, Bowen Fu², Lili Li², Yanlai Wang¹, Lin Yang²

Affiliations

¹ Key Laboratory of Semiconductor Photovoltaic Technology of Inner Mongolia Autonomous Region, School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, P. R. China.
² College of Physics Science and Technology, Hebei University, Baoding 071002, Hebei, P. R. China.

PMID: 31968514
DOI: 10.1166/jnn.2020.17894

Abstract

The hot-injection method was used for the synthesis of ternary metal chalcogenide nanocrystals (NCs) CuInS₂ (CIS); this was achieved by using the metal precursors (copper iodide and indium acetate) and four different types of sulfur precursor solutions. It was discovered that CIS NCs synthesized with different sulfur precursor solutions exhibited the chalcopyrite structure with similar particle sizes of ~4.2 nm. As a comparison, CIS NCs synthesized using ODE-S precursor displayed an enhanced luminescence intensity and a long PL decay lifetime, which could be considered as an evidence of improved interior crystallinity.

Publication types

Research Support, Non-U.S. Gov't