journal article·2024-11-26Open access

Interfacial Charge Transfer in One-Dimensional AgBr Encapsulated inside Single-Walled Carbon Nanotube Heterostructures

Tian Che, Shuai Liu, Yatong Wang, Pin Zhao, Chengpeng Yang, Xiaohang Pan, Hongze Ji, Lin Geng, Qiong Sun, Ziyi Hu, Alei Li, Chengxu Zhou, Li-Chun Xu, Yunlei Zhong, Dan Tian, Yong Yang, Lixing Kang

ACS Nano· Volume 18· Issue 47

Abstract

The advent of one-dimensional van der Waals heterostructure (1D vdWH) nanomaterials has provided valuable opportunities for the advancement of electronic or optical devices, as well as for exploring various condensed matter phenomena. Electron transfer is a fundamental process in host–guest interactions, significantly influencing nanoscale physicochemical processes. Elucidating the mechanism by which the host influences the electronic structure of the guest is essential for elucidating these interactions. This study reports the successful synthesis of a material system consisting of precisely resolved AgBr nanowires encapsulated within single-walled carbon nanotubes (SWCNTs) that has been successfully synthesized and utilized to investigate the intrinsic electron transfer across 1D vdWHs. Cyclic voltammetry (CV) was employed to investigate the 1D vdWH interaction between AgBr and SWCNTs, which provided a more intuitive and accurate characterization of the charge transfer from SWCNTs to AgBr. Furthermore, Kelvin probe force microscopy showed a 149 mV reduction in the average surface potential of carbon nanotubes after AgBr filling, supporting the efficacy of CV in probing electron dynamics in 1D vdWHs. Finally, theoretical calculations indicated a charge transfer of 0.11 e – per simulation cell, reinforcing the effectiveness of CV in assessing the interactions within 1D vdWHs.
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Research context

OpenAlex topics: Graphene research and applications · Molecular Junctions and Nanostructures · ZnO doping and properties

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

Affiliations

National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215000, P. R. China

Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Division of Advanced Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China

DIFFER-Dutch Institute for Fundamental Energy Research, De Zaale 20, Eindhoven 5612 AJ, The Netherlands

Materials Simulation and Modeling, Department of Applied Physics, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands

College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, China

College of Materials Science and Engineering, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China

College of Physics, Taiyuan University of Technology, Taiyuan 030024, China

Funding

China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · China National Textile and Apparel Council · Jiangsu Provincial Department of Human Resources and Social Security · Jiangsu Agricultural Science and Technology Innovation Fund · National Natural Science Foundation of China

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