Improved Photovoltaic Properties Of Dye-Sensitized Solar Cells Using Laser Patterned F-Doped SnO2 Thin Films

Archives of Metallurgy and Materials

Hyo-Jin Ahn¹  Doh-Hyung Riu¹  Ha-Rim An¹  Hyelan An¹ 

[1] DEPARTMENT OF MATERIALS SCIENCE AND ENGINEERING, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, SEOUL 139-743, KOREA

关键词: Keywords: Dye-sensitized solar cells;    F-doped SnO2 thin films;    Surface morphology;    Laser patterning;   

DOI  :  10.1515/amm-2015-0106

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

We modified the surfaces of F-doped SnO2 thin films using laser patterning to improve the photovoltaic properties of dye-sensitized solar cells. To do so, we varied the laser power density and the distance between laser-patterned lines. First, we investigated three power densities. Higher densities led to higher sheet resistances owing to increases in surface roughnesses. The lowest power density increased surface roughness without electrical degradation. Next, we explored three line spacings at a fixed power density. The films with the narrowest spacing exhibited the highest power conversion efficiency (~7.00%), the highest short-circuit photocurrent density (16.28 mA/cm2), and a good fill factor (58.82%).

【 授权许可】

Unknown