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Studying and fabricating optical, electrical, and structural properties of p-type Al- and N- co-doped SnO2 (ANTO) films and investigating the photo-electro effect of p-ANTO/n-Si heterojunctions
Journal of Photochemistry and Photobiology A: Chemistry ( IF 4.1 ) Pub Date : 2019-12-20 , DOI: 10.1016/j.jphotochem.2019.112334
Anh Quang Duong , Huu Phuc Dang , Tran Le

P-type SnO2 films co-doping Al and N increased the high solubility N in the SnO2 host lattice without degrading the crystal structure of the film. The solubility N in the SnO2 host lattice increased with the Al2O3 content in the ATO (Al2O3 doped SnO2) target, and the optimum Al2O3 content was found to be 6 %wt, which corresponds with the best film crystal quality. The optimum optical, electrical, and structural properties of films were achieved at a deposition temperature of 300 °C in a mixture of 50 % Ar and 50 % N2 gas from 6 %wt Al2O3-doped SnO2 target. The Al3+–Sn4+ and N3−–O2− substitution was verified using measurements, such as X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, and XRD patterns. Data regarding the tetragonal rutile to cubic phase transformation indicated the N3−–O2− substitution, while the Al3+–Sn4+ replacement was also verified by the appearance of an additional (101) lattice reflection. The resistivity, hole concentration, and hole mobility of the ANTO-6-50 film achieved the best values were 7.1 × 10−3 Ω cm, 6.24 × 1019 cm−3, and 14.1 cm2 V−1 s−1, respectively. The I–V characteristics of p-ANTO-x-50/n-Si heterojunctions under illumination showed p-type conductive properties of the ANTO-x-50 films and a good reproducible photocurrent response of the p-ANTO-x-50/n-Si heterojunction diodes.



中文翻译:

研究和制造p型Al和N共同掺杂的SnO 2(ANTO)薄膜的光学,电学和结构性质,并研究p-ANTO / n-Si异质结的光电效应

共掺杂Al和N的P型SnO 2膜增加了SnO 2主晶格中的高溶解度N,而不会降低膜的晶体结构。在的SnO溶解度Ñ 2主晶格随Al增加2 Ó 3在ATO含量(铝2 ö 3掺杂的SnO 2)靶,最佳的Al 2 ö 3含量为6%(重量),其与对应最好的电影水晶质量。膜的最佳光学,电学和结构性能是在沉积温度为300°C且由6 wt%的Al 2组成的50%Ar和50%N 2气体的混合物中实现的O 3掺杂的SnO 2靶。使用X射线光电子能谱,紫外可见光谱和XRD图谱等测量来验证Al 3+ -Sn 4+和N 3- -O 2-的取代。有关四方金红石到立方相转变的数据表明,N 3-- O 2-取代,而Al 3+ -Sn 4+取代也通过额外的(101)晶格反射来证实。电阻率,空穴浓度和ANTO-6-50膜的空穴迁移率达到的最佳值分别为7.1×10 -3 Ω厘米,6.24×10 19cm -3和14.1 cm 2 V -1 s -1。p-ANTO- x -50 / n-Si异质结的I–V特性在光照下显示出ANTO- x -50膜的p型导电特性,并且p-ANTO- x -50 /具有良好的可复制光电流响应n-Si异质结二极管。

更新日期:2019-12-20
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