新型炭材料Issue(6):473-479,7.
火焰法制备非晶态“实心”炭纳米纤维的结构模型及其电输运行为
Structure and electrical conductivity of amorphous solid_core carbon nanofibers produced in flames
摘要
Abstract
The microstructures of amorphous solid¯core carbon nanofibers ( CNFs) synthesized in flames show long¯range disor¯ der, which makes it difficult to reconstruct their three¯dimensional atom configurations by popular characterization methods. Using a reverse Monte Carlo method, the atom configurations of CNFs were derived from X¯ray diffraction data, and these were used to cal¯ culate the Fermi levels, density of electronic states and electrical conductivity of the CNFs. The calculated electronic structures of CNFs indicate that the amorphous CNFs are semiconducting. Experimentally, the I_V curve of the CNFs was investigated and shown to be symmetrical and nonlinear, indicating the semiconductivity of the CNFs, which is good agreement with calculated results.关键词
炭纳米纤维/非晶态/逆向蒙特卡罗法/电输运行为Key words
Carbon nanofibers/Amorphous/Reverse Monte Carlo/Electrical behavior分类
通用工业技术引用本文复制引用
祁祥,孟兆楷,潘春旭..火焰法制备非晶态“实心”炭纳米纤维的结构模型及其电输运行为[J].新型炭材料,2014,(6):473-479,7.基金项目
高等学校博士学科点专项科研基金资助课题(20070486016) (20070486016)
国家自然科学基金青年项目(51002129) (51002129)
中国博士后科学基金资助项目(20100480068) (20100480068)
湖南省教育厅科学研究项目(10C1270).@@@@Specialized Research Fund for the Doctoral Program of Higher Education (20070486016) (10C1270)
National Natural Sciˉ ence Foundation of China (51002129) (51002129)
China Postdoctoral Science Foundation (20100480068) (20100480068)
Scientific Reˉ search Fund of Hunan Provincial Education Department (10C1270) (10C1270)