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1.哈尔滨工业大学 物理学院,黑龙江 哈尔滨 150001
2.长春希达电子科技有限公司,吉林 长春 130103
Received:27 August 2021,
Revised:10 September 2021,
Published:2021-12
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Cui-ling YU, Rui-bin ZHU, Shan LIN, et al. Influence of Zn Doped SnO2 Nanocrystals as Photoanode Materials on Photoelectric Performance of Dye-sensitized Solar Cells[J]. Chinese journal of luminescence, 2021, 42(12): 1936-1943.
Cui-ling YU, Rui-bin ZHU, Shan LIN, et al. Influence of Zn Doped SnO2 Nanocrystals as Photoanode Materials on Photoelectric Performance of Dye-sensitized Solar Cells[J]. Chinese journal of luminescence, 2021, 42(12): 1936-1943. DOI: 10.37188/CJL.20210285.
利用水热法合成不同Zn掺杂含量的SnO
2
(SnO
2
∶Zn)纳米晶,并通过丝网印刷技术制备了SnO
2
∶Zn纳米晶光阳极,研究不同含量Zn掺杂SnO
2
纳米晶光阳极对染料敏化太阳能电池光电性能的影响。实验结果表明,Zn掺杂含量增加能够引起SnO
2
光阳极的平带电位负向偏移和等电点增加。与未掺杂SnO
2
染料敏化太阳能电池相比,当Zn掺杂量为2% 时,SnO
2
∶Zn基染料敏化太阳能电池的功率转换效率(PCE)最高,为4.2%,这归因于Zn掺杂能够增加染料在SnO
2
光阳极的担载量和提高染料敏化太阳能电池的光生电子寿命(
τ
e
)。此外,2% Zn掺杂SnO
2
光阳极进一步经过TiCl
4
处理,其电池功率转换效率可提高到7.7%。
Zn-doped SnO
2
nanocrystals under hydrothermal conditions were synthesized and subsequently the photoanodes were prepared
via
the screen printing technology for dye-sensitized solar cells. The effect of Zn-doped SnO
2
on the performance of dye-sensitized solar cells was investigated. It is found that Zn doping into SnO
2
can induce a negative shift in the flat-band potential and enhance the isoelectric point. As a result
the power conversion efficiency(PCE) of 4.2% was achieved for 2% Zn-doped SnO
2
based dye-sensitized solar cell compared with undoped SnO
2
based dye-sensitized solar cell. The enhancement in performance was ascribed to improve photogenerated electron lifetime(
τ
e
) and dye-uptake capabilities. Moreover
after the TiCl
4
treatment of the photoanode
the 2% Zn-doped SnO
2
based dye-sensitized solar cell exhibited an impressive power conversion efficiency of 7.7%.
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