Photoinduced charge transfer and excitonic energy transfer in the CuInS 2 /ZnS/MoS 2 heterotrilayer
Year: 2024
Type: article
Abstract: Photo-induced charge transfer is the key process of many applications such as photovoltaics, photodetection, and light-emitting devices. With the outgrowth of a new class of low-dimensional semiconductors, i.e., monolayer transition metal dichalcogenides and semiconductor nanocrystals, charge transfer at the 2D/0D heterostructures has drawn many efforts because of the outstanding optical and electrical properties. This paper studies the dynamics of excitons of the CuInS 2 /ZnS/MoS 2 heterotrilayer through femtosecond time-resolved transient absorption spectroscopy. The electron and hole transfer are observed by selectively exciting the electrons with tunable pump wavelengths. The exciton lifetimes are obtained on the picosecond scale. This work provides clues on exploring the non-toxic optoelectronic devices based on the CuInS 2 /ZnS/MoS 2 heterotrilayer.
Source: Optics Express
DOI: 10.1364/oe.537330
Authors: GuangRui Jia, RenLong Wang, ChaoChao Qin, BingKun Chen, ZhaoYong Jiao, ZunLue Zhu, ZhongPo Zhou
Institutions: Henan Normal University, Beijing Institute of Technology
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4404069204