Chen Nan, Xue Zheng, Yang Hui, Zhang Zhou, Gao Juan, Li Yongjun, Liu Huibiao
CAS Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Phys Chem Chem Phys. 2015 Jan 21;17(3):1785-9. doi: 10.1039/c4cp04397a. Epub 2014 Dec 2.
Heterojunction nanomaterials have attracted the interest of numerous scientists and engineers to explore the fundamental scientific understanding of the formation of heterojunction nanostructures, their special properties with enhanced electrical and optical performance and the relationship between the functionality and the molecular structures. In this work, we synthesized novel axial nested P-N heterojunction nanowires combining the inorganic semiconductor PbS and the organic conjugated polymer polypyrrole (PPy). The nested P-N heterojunction nanowires (NWs) show a higher rectification ratio (exceeding 100), long-term stability and high unilateral conductivity due to the bigger area of junction produced.
异质结纳米材料吸引了众多科学家和工程师的关注，他们致力于探索异质结纳米结构形成的基本科学原理、其具有增强电学和光学性能的特殊性质，以及功能与分子结构之间的关系。在这项工作中，我们合成了新型的轴向嵌套P-N异质结纳米线，它结合了无机半导体硫化铅（PbS）和有机共轭聚合物聚吡咯（PPy）。由于产生的结面积更大，嵌套P-N异质结纳米线显示出更高的整流比（超过100）、长期稳定性和高单向导电性。
