Carrier transfer in quasi-2D perovskite/MoS2 monolayer heterostructure
Author:
Qin Chaochao1, Wang Wenjing1, Song Jian1, Jiao Zhaoyong1, Ma Shuhong1, Zheng Shuwen1, Zhang Jicai1, Jia Guangrui1, Jiang Yuhai2ORCID, Zhou Zhongpo1ORCID
Affiliation:
1. Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, and School of Physics , Henan Normal University , Xinxiang 453007 , China 2. School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China
Abstract
Abstract
Two-dimensional layered semiconductors have attracted intense interest in recent years. The van der Waals coupling between the layers tolerates stacking various materials and establishing heterostructures with new characteristics for a wide range of optoelectronic applications. The interlayer exciton dynamics at the interface within the heterostructure are vitally important for the performance of the photodetector and photovoltaic device. Here, a heterostructure comprising two-dimensional organic-inorganic Ruddlesden–Popper perovskites and transition metal dichalcogenide monolayer was fabricated and its ultrafast charge separation processes were systematically studied by using femtosecond time-resolved transient absorption spectroscopy. Significant hole and electron transfer processes in the ps and fs magnitude at the interface of the heterostructure were observed by tuning pump wavelengths of the pump-probe geometries. The results emphasize the realization of the exciton devices based on semiconductor heterostructures of two-dimensional perovskite and transition metal dichalcogenide.
Funder
Young Backbone Teacher Training Program in Higher Education of Henan Province Natural Science Foundation of Henan Province National Key Research and Development Program of China Stem Cell and Translational Research National Natural Science Foundation of China
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology
Reference58 articles.
1. S. Manzeli, D. Ovchinnikov, D. Pasquier, O. V. Yazyev, and A. Kis, “2D transition metal dichalcogenides,” Nat. Rev. Mater., vol. 2, no. 8, p. 17033, 2017. https://doi.org/10.1038/natrevmats.2017.33. 2. D. Yang, J. Wu, B. T. Zhou, et al.., “Spontaneous-polarization-induced photovoltaic effect in rhombohedrally stacked MoS2,” Nat. Photonics, vol. 16, no. 6, pp. 469–474, 2022. https://doi.org/10.1038/s41566-022-01008-9. 3. A. Kunin, S. Chernov, J. Bakalis, et al.., “Momentum-resolved exciton coupling and valley polarization dynamics in monolayer WS2,” Phys. Rev. Lett., vol. 130, no. 4, p. 046202, 2023. https://doi.org/10.1103/physrevlett.130.046202. 4. K. F. Mak and J. Shan, “Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides,” Nat. Photonics, vol. 10, no. 4, pp. 216–226, 2016. https://doi.org/10.1038/nphoton.2015.282. 5. U. K. Aryal, M. Ahmadpour, V. Turkovic, H. G. Rubahn, A. Di Carlo, and M. Madsen, “2D materials for organic and perovskite photovoltaics,” Nano Energy, vol. 94, p. 106833, 2022, https://doi.org/10.1016/j.nanoen.2021.106833.
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