Pressure Affected Interface Effect in Nanoheterojunctions Formed by Au Nanoparticles Anchoring CsPbBr<sub>3</sub> Nanocrystals
Plasmon enhanced perovskite photovoltaic materials are an important direction for the development of perovskite materials. Interfacial behavior of the plasmon and perovskite determines photovoltaic properties. On the other hand, pressure is a powerful noninvasive method to modify interfacial interaction. Thus, an Au-CsPbBr3 nanoheterojunction is formed by depositing Au nanoparticles on the surface of CsPbBr3 nanocrystals. Pressure affected optical properties indicated that both electron delocalization and hole migration can be modified in the nanoheterojunction. Electron delocalization is enhanced with decreasing pressure-induced interspace. Hole migration is also accelerated with increasing pressure-induced valence band in CsPbBr3. These results show a new method to adjust charge behavior in heterojunctions and thus a way to optimize photovoltaic properties.
Authors
- Kuo Bao (ORCID: https://orcid.org/0000-0002-9330-1384)
- Lingyun Pan (ORCID: https://orcid.org/0000-0003-3564-022X)
- Tian Cui (ORCID: https://orcid.org/0000-0002-9664-848X)
- Hongyu Tu
- Xin Wang (ORCID: https://orcid.org/0009-0009-3600-2722)
- Xinyu Liu (ORCID: https://orcid.org/0009-0001-5086-8874)
- Shuping Xu (ORCID: https://orcid.org/0000-0002-6216-6175)
- Shuhao Zhang (ORCID: https://orcid.org/0000-0002-4349-988X)
- Fangfei Li (ORCID: https://orcid.org/0000-0002-0342-3872)
- Hongyu Yu
- Hongjian Qi
Institutions
- Ningbo University (CN)
- Jilin University (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry C
- Published
- 2024-12-03
- DOI
- https://doi.org/10.1021/acs.jpcc.4c06799
- Citations
- 2
- Primary Topic
- Quantum Dots Synthesis And Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.23
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China
- Program for Changjiang Scholars and Innovative Research Team in University