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暨南大学物理学系 广州市真空薄膜技术与新能源材料重点实验室, 思源实验室, 广东 广州 510632
纸质出版日期:2017-3-5,
收稿日期:2016-9-19,
修回日期:2016-10-18,
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张利忠, 吴明晓, 田金鹏等. TiO<sub>2</sub>阴极缓冲层对Rubrene/C<sub>70</sub>有机太阳能电池性能的改善[J]. 发光学报, 2017,38(3): 359-364
ZHANG Li-zhong, WU Ming-xiao, TIAN Jin-peng etc. Improvement of TiO<sub>2</sub> Cathode Buffer Layer to The Performance of Rubrene/C<sub>70</sub> Organic Solar Cells[J]. Chinese Journal of Luminescence, 2017,38(3): 359-364
张利忠, 吴明晓, 田金鹏等. TiO<sub>2</sub>阴极缓冲层对Rubrene/C<sub>70</sub>有机太阳能电池性能的改善[J]. 发光学报, 2017,38(3): 359-364 DOI: 10.3788/fgxb20173803.0359.
ZHANG Li-zhong, WU Ming-xiao, TIAN Jin-peng etc. Improvement of TiO<sub>2</sub> Cathode Buffer Layer to The Performance of Rubrene/C<sub>70</sub> Organic Solar Cells[J]. Chinese Journal of Luminescence, 2017,38(3): 359-364 DOI: 10.3788/fgxb20173803.0359.
为了提高有机太阳能电池(OSCs)的性能,增强器件在空气中的稳定性,研究了TiO
2
薄膜作为阴极缓冲层对OSCs器件性能的影响。制备了结构为ITO/TiO
2
/C
70
/Rubrene/MoO
3
/Al的OSCs器件。首先,通过测量器件效率,考察了TiO
2
薄膜对Rubrene/C
70
电池的性能影响。接着,通过控制TiO
2
薄膜厚度,研究了TiO
2
厚度对器件性能的影响。实验结果显示,当TiO
2
修饰层厚度比较薄时,器件的各性能参数较低,随着TiO
2
厚度的不断增加,器件的各性能参数呈上升趋势;当TiO
2
厚度为81 nm时,器件的各性能参数达到最佳,器件的功率转换效率为1.09%,电流密度为2.55 mAcm
-2
,开路电压为0.88 V,填充因子为48.69%;当TiO
2
厚度继续增加时,器件的各性能参数开始下降。对比没有TiO
2
阴极修饰层的器件,最优时的
J
sc
、
V
oc
、FF和PCE分别提高了37%、21%、17%和91%,并阐述了性能提高的原因。
To improve the performance of organic solar cells (OSCs) and enhance their stability in the air
the effect of TiO
2
film as cathode buffer layer on the performance of OSCs was studied. The cells with a structure of ITO/TiO
2
/C
70
/Rubrene/MoO
3
/Al were fabricated. The influence of TiO
2
on the cell was investigated by measuring the device efficiency. The experimental results show that the performance of cell is on the rise with the increase of the thickness of TiO
2
. when the thickness of TiO
2
is 81 nm
the performance parameters are the best (power conversion efficiency current density
open circuit voltage and fill factor are 1.09%
2.55 mAcm
-2
0.88 V
48.69%
respectively)
and the cell performance declines with the continued increasing of TiO
2
thickness. Compared with the device without TiO
2
layer
the optimal
J
sc
V
oc
FF and PCE of the cells increased by 37%
21%
17% and 91%
respectively. and the reasons for the improvement were discussed.
有机太阳能电池(0SCs)TiO2阴极修饰层RubreneC70
organic solar cells(OSCs)TiO2cathode buffer layerRubreneC70
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