First-Principles Investigation of Electronic Structure and Optical Properties in N-S Codoping ZnO

作者: 胡宏铎 :黄石职业技术学院信息工程系,黄石; 陈兰丽 :黄石职业技术学院信息工程系,黄石;江西科技师范大学江西省通信与光电子重点实验室,南昌;

关键词: 共掺第一性原理导电率电子结构光学性质ZnOCodoping First-Principles Conductivity Electronic Structure Optical Properties ZnO



Abstract: To analyze the electronic structures and optical properties of pure-ZnO and N-S codoped ZnO, the defect formation and ionization energy, density of states, conductivity, dielectric constant and adsorption coefficient of varies complexes were calculated by the first-principles calculation methods based on Density Functional Theory (DFT). It is found that 3N-S codoping in ZnO not only enhances N acceptor solubility, but also leads to shallower acceptor energy, demonstrating that 3N-S codoping can obtain a high-quality and more stable p-type ZnO. Furthermore, as the incorporation of N atoms is increasing, the ionization energies of the complexes are sharply decreasing, and the conductivity of the system is enhanced. In addition, the calculation of the dielectric functions and adsorption spectrum shows that 3N-S codoped ZnO has interesting characteristic in the low-energy region. We expect that this theory study might be helpful for the experimental results.

文章引用: 胡宏铎 , 陈兰丽 (2014) N-S共掺ZnO的电子结构和光学性质的第一性原理研究。 应用物理, 4, 46-52. doi: 10.12677/APP.2014.44007


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