DataVXACS Energy LettersPaper
journal article·2026-03-13

CsPbBr 3 Nanodiscs/Pb 4 S 3 Br 2 Nanocrystal Heterostructures: Shape Anisotropy for Tailoring Exciton–Phonon Coupling

Dandan Yang, Xuebin Zhang, Zeyao Han, Zhiheng Xu, Xiaoming Li, Kaiye Cheng, Xiaobin Tang, Qin Xu, Haibo Zeng

ACS Energy Letters· Volume 11· Issue 3
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Source abstract

Abstract

Shape anisotropy in lead halide perovskite nanocrystals (NCs) provides strong crystallographic orientations for epitaxial growth chalcohalide NCs, yet the establishment of shape anisotropic heterostructures remains challenging, and their exciton states in the interfaces need a deeper understanding. Herein, shape anisotropic heterostructures where CsPbBr 3 nanodisks (NDs) are epitaxially grown along with Pb 4 S 3 Br 2 nanospheres or nanorods are reported, and varying the amount of Pb/S precursor allows for controlling the shape of Pb 4 S 3 Br 2 domain. The epitaxial growth orientation at the interfaces between the (100) plane of CsPbBr 3 NDs and the (101) plane of Pb 4 S 3 Br 2 has been established through structural characterizations. Significantly, the shape anisotropy of the two heterostructures induces the discrepancy of exciton states at the heterostructure interfaces, promoting exciton delocalization or localization at the interfaces of photogenerated excitons. These results illustrate that designing shape anisotropic heterostructures to tailor the exciton–phonon coupling holds significant potential to break through existing photodetection and photocatalytic applications.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materialsCatalysis & surfaces

OpenAlex topics: Perovskite Materials and Applications · 2D Materials and Applications · Inorganic Chemistry and Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Innovation Materials and Energy, School of Chemistry and Materials

Yangzhou University

Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Key Laboratory of Advanced Nuclear Technology and Radiation Protection

Ministry of Industry and Information Technology

State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials, School of Material Science and Engineering

Nanjing University of Posts and Telecommunications

MIIT Key Laboratory of Advanced Display Materials and Devices, Jiangsu Engineering Research Center for Quantum Dot Display, School of Materials Science and Engineering, Institute of Optoelectronics & Nanomaterials

Nanjing University of Science and Technology

Funding

Natural Science Research of Jiangsu Higher Education Institutions of China · China Postdoctoral Science Foundation · National Natural Science Foundation of China

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