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Cadmium stannate conductive layer with high optical transmittance and tunable work function
Materials Research Express ( IF 1.8 ) Pub Date : 2021-01-30 , DOI: 10.1088/2053-1591/abdcbb
Ziyao Zhu 1, 2 , Zhongming Du 3 , Xiangxin Liu 1, 2 , Yufeng Zhang 1 , Qiuchen Wu 1, 2 , Xinlu Lin 1, 2
Affiliation  

200 nm cadmium stannate (Cd2SnO4) transparent conductive layer films with a sheet resistance of 6.35 Ω/sq and resistivity of 1.27נ10−4 Ωcm are deposited by magnetron sputtering coupling with adjustable target bias voltage followed by 620 C 30 min annealing. The lowest resistivity of Cd2SnO4 films reported before was 1.28נ10−4 Ωcm, achieved with 510 nm Cd2SnO4. The average transmission rate of 200 nm sputtering Cd2SnO4 films between 400–800 nm is 94%. The deposition rate increase target bias voltage can the and electrical performance of Cd2SnO4 films. The surface work function of Cd2SnO4 films is also tunable by target bias voltage. The Cd2SnO4 phonon spectrum and phonon density of states combined with Raman microscope shows the Cd2SnO4 films with most ideal electric properties has a identical phonon response. XPS shows the chemical component of as-deposited Cd2SnO4 films and Cd2SnO4 films after annealing with 120 V target bias voltage is Cd2.03SnO6.36 and Cd1.25SnO4.15, respectively, which is contrary to the general conclusions that interstitial cadmium atoms and oxygen vacancies are the main self-doping defects in Cd2SnO4 films.



中文翻译:

具有高透光率和可调功函数的锡酸镉导电层

200 nm 锡酸镉 (Cd 2 SnO 4 ) 透明导电层薄膜具有 6.35 Ω/sq 的薄层电阻和 1.27נ10 -4 Ωcm 的电阻率是通过磁控溅射耦合沉积的,可调节目标偏置电压,然后 620 C 30 分钟退火。之前报道的 Cd 2 SnO 4薄膜的最低电阻率为 1.28נ10 -4 Ωcm,使用 510 nm Cd 2 SnO 4 实现。200 nm 溅射 Cd 2 SnO 4薄膜在 400-800 nm 之间的平均透射率为94%。沉积速率增加靶偏置电压可以影响 Cd 2 SnO 的电性能和电性能4部电影。Cd 2 SnO 4薄膜的表面功函数也可通过目标偏置电压进行调节。结合拉曼显微镜的Cd 2 SnO 4声子光谱和声子态密度表明,电性能最理想的Cd 2 SnO 4薄膜具有相同的声子响应。XPS 显示沉积的 Cd 2 SnO 4薄膜和 Cd 2 SnO 4薄膜的化学成分在 120 V 目标偏置电压下退火后为 Cd 2.03 SnO 6.36和 Cd 1.25 SnO 4.15,这与间隙镉原子和氧空位是 Cd 2 SnO 4薄膜中的主要自掺杂缺陷的一般结论相反。

更新日期:2021-01-30
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