Charge Transfer Doping Modulated Raman Scattering and Enhanced Stability of Black Phosphorus Quantum Dots on a ZnO Nanorod
Source abstract
Abstract
Abstract Black phosphorus (BP) has recently triggered an unprecedented interest in the 2D community. However, many of its unique properties are not exploited and the well‐known environmental vulnerability is not conquered. Herein, a type‐I mixed‐dimensional (0D‐1D) van der Waals heterojunction is developed, where three‐atomic‐layer BP quantum dots (QDs) are assembled on a single ZnO nanorod (NR). By adjusting the indium (In) content in ZnO NRs, the degree and even the direction of surface charge transfer doping within the heterojunction can be tuned, which result in selective Raman scattering enhancements between ZnO and BP. The maximal enhancement factor is determined as 4340 for BP QDs with sub‐ppm level. Furthermore, an unexpected long‐term ambient stability (more than six months) of BP QDs is revealed, which is ascribed to the electron doping from ZnO:In NRs. The first demonstration of selective Raman enhancements between two inorganic semiconductors as well as the improved stability of BP shed light on this emerging 2D material.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: 2D Materials and Applications · Perovskite Materials and Applications · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Shenzhen Key Laboratory of Laser Engineering College of Optoelectronic Engineering Shenzhen University Shenzhen 518060 P. R. China
Department of Physics University of Antwerp Antwerp BE‐2020 Belgium
Department of Energy Materials and Technology General Research Institute for Nonferrous Metals Beijing 100088 P. R. China
State Key Laboratory of Silicon Materials Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 P. R. China
College of Electronic Science and Technology Shenzhen University Shenzhen 518060 P. R. China
School of Biomedical Engineering Shanghai Jiao Tong University Shanghai 200030 P. R. China
Funding
National Natural Science Foundation of China · Fonds Wetenschappelijk Onderzoek · Natural Science Foundation of Guangdong Province · Shanghai Jiao Tong University
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