Optical properties of CuInSe2 nano-film from the first principle calculation
First principle method was used to investigate the complex dielectric function of CuInSe2,which agrees well with the experimental results.Optical properties of CuInSe2 nano-film have been calculated and compared with those of bulk CuInSe2 basing on complex dielectric function calculation.It is found that bulk CuInSe2 has the biggest static dielectric constant (about 13),while nano-films have the lower values (about 6 to 9).The optical properties of the thinnest film (11.6 (A)thickness) are apparently different from those of the bulk.As the thickness increases (23.2 (A) and 34.8 (A) thickness),the nano-films have similar but still different optical properties from those of the bulk.We also found that the band gap decreases with increasing thickness of the nano-film.
CuInSe2 solar cell optical properties dielectric function first principle calculation
Tang FuLing Zhu Zhengxin Lu Wenjiang Feng Yudong Wang Zhimin Wang Yi
State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Department of Materials Science State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Department of Materials Science Science and Technology on Surface Engineering Laboratory, Lanzhou institute of physics, Lanzhou 7300
国际会议
上海
英文
93-93
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）