Photoinduced charge transfer and excitonic energy transfer in the CuInS<sub>2</sub>/ZnS/MoS<sub>2</sub> heterotrilayer
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.
Authors
- Ruxin Wang
- Guangrui Jia
- Chaochao Qin (ORCID: https://orcid.org/0000-0002-3665-6111)
- Zhongpo Zhou (ORCID: https://orcid.org/0000-0002-9448-9286)
- Zhaoyong Jiao (ORCID: https://orcid.org/0000-0002-5971-5778)
- Zunlue Zhu (ORCID: https://orcid.org/0000-0003-0307-4606)
- Bingkun Chen (ORCID: https://orcid.org/0000-0003-3714-166X)
Institutions
- Henan Normal University (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2024-11-05
- DOI
- https://doi.org/10.1364/oe.537330
- Primary Topic
- Chalcogenide Semiconductor Thin Films
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Henan Province
- Henan Provincial Science and Technology Research Project
- Science and Technology Innovation Talents in Universities of Henan Province