arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1906.11568cond-mat.mtrl-sci
收藏

M掺杂Cu $_2$ O(M $=$ Na,Li,Ti)中氢行为的第一性原理研究

First principle investigation of hydrogen behavior in M doped Cu$_2$O (M $=$ Na, Li and Ti)

A. Larabi, A. Mahmoudi, M. Mebarki, M. Dergal

摘要:

研究了不同掺杂(Na、Li和Ti)对Cu $_2$ O的电子、磁性和光学性质的影响。电子性质计算表明,氢使Cu $_2$ O的导电性由p型转变为n型。结果表明,在Cu $_2$ O体系中,间隙氢原子更倾向于位于四面体位置,并使后者的带隙值降低。Na或Li掺杂的Cu $_2$ O保持了Cu $_2$ O的p型导电性,而氢是Na或Li掺杂的Cu $_2$ O系统中的n型导电性的来源。Ti掺杂使Cu $_2$ O的带隙值增大,使其成为n型半导体。氢增加了M掺杂Cu $_2$ O的光学透过率。

英文摘要:

We study the hydrogen effect on the electronic, magnetic and optical properties of Cu$_2$O in presence of different dopants (Na, Li and Ti). The electronic properties calculations show that hydrogen changes the conductivity of Cu$_2$O from p to n-type. The results show that interstitial hydrogen atom prefers to locate in the tetrahedral site in Cu$_2$O system and it decreases the band gap value of the later. The Na or Li doping Cu$_2$O preserves the p-type conductivity of Cu$_2$O, while hydrogen is the source of n-type conductivity in Na or Li doped Cu$_2$O systems. Ti doping increases the band gap value of Cu$_2$O and makes it an n-type semiconductor. Hydrogen increases the optical transmittance of M doped Cu$_2$O.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑