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High-efficiency Flexible Organic Solar Cells with UV-ozone Treated Silver Modification ITO Electrode
- Chinese Journal of Luminescence Vol. 38, Issue 7, Pages: 882-890(2017)
- 作者机构：
1. 南京邮电大学有机电子与信息显示国家重点实验室培育基地信息材料与纳米技术研究院,江苏 南京,210046
2. 南京邮电大学江苏国家先进材料协同创新中心,江苏 南京,210023
- 作者简介：
- 基金信息：Supported by 973 National Basic Research Program of China (2015CB932203);National
DOI：10.3788/fgxb20173807.0882
CLC： TP384.1Received：07 December 2016，
Revised：03 March 2017，
Published：05 July 2017
- 稿件说明：
移动端阅览
闫敏楠, 郑爽, 王丹蓓等. 紫外臭氧处理超薄银修饰ITO电极的高效柔性有机太阳能电池[J]. 发光学报, 2017,38(7): 882-890
YAN Min-nan, ZHENG Shuang, WANG Dan-bei etc. High-efficiency Flexible Organic Solar Cells with UV-ozone Treated Silver Modification ITO Electrode[J]. Chinese Journal of Luminescence, 2017,38(7): 882-890
闫敏楠, 郑爽, 王丹蓓等. 紫外臭氧处理超薄银修饰ITO电极的高效柔性有机太阳能电池[J]. 发光学报, 2017,38(7): 882-890 DOI： 10.3788/fgxb20173807.0882.
YAN Min-nan, ZHENG Shuang, WANG Dan-bei etc. High-efficiency Flexible Organic Solar Cells with UV-ozone Treated Silver Modification ITO Electrode[J]. Chinese Journal of Luminescence, 2017,38(7): 882-890 DOI： 10.3788/fgxb20173807.0882.
摘要
以紫外臭氧处理超薄Ag复合MoO
3
或PEDOT：PSS修饰ITO电极的高效柔性有机太阳能电池。通过优化紫外臭氧处理Ag薄膜的时间，提高了以P3HT：PCBM为有源层的器件的功率转换效率，从1.68%（未经过紫外臭氧处理）提高到2.57%（紫外臭氧处理Ag 1 min）。提高的原因推测是紫外臭氧处理形成了AgO
x
薄膜，提高了电荷提取并使器件具有高光学透明度、低串联电阻和优异的表面功函数等一些性能。并且，紫外臭氧处理Ag薄膜与MoO
3
或者PEDOT：PSS复合修饰ITO的器件效率分别得到提高，Ag薄膜与MoO
3
复合修饰ITO的器件效率从2.02%（PET/ITO/MoO
3
）提高到2.97%（PET/ITO/AgO
x
/MoO
3
），Ag薄膜与PEDOT：PSS复合修饰ITO的器件效率从2.01%（PET/ITO/PEDOT：PSS）提高到2.93%（PET/ITO/AgO
x
/PEDOT：PSS）。此外，以PBDTTT-EFT：PC
71
BM为有源层的柔性聚合物太阳能电池效率可达6.21%。基于ITO的柔性光电器件效率的提高主要归于ITO被Ag/PEDOT：PSS或Ag/MoO
3
修饰后功函数的提高。
Abstract
Highly efficient heterojunction polymer solar cells based on ITO flexible electrode were developed with an UV-ozone-treated ultrathin silver interlayer combined with MoO
3
/PEDOT:PSS as modification materials. By optimizing UV-ozone-treated time of silver thin films
it could improve the power conversion efficiency (PCE) of the device based on the blend of poly(3-hexylthiophene) (P3HT):[6
6]-phenyl C
61
-butyric acidmethyl ester (PC
61
BM) from 1.68% (without UV-ozone treatment) to 2.57% (Ag with 1 min UV-ozone treatment)
which might be an AgO
x
layer formation that improves hole extraction and several promising characteristics
including high optical transparency
low sheet resistance and superior surface work function. Meanwhile
the devices with UV-ozone treated thin Ag layer together with MoO
3
or PEDOT:PSS improves PCEs from 2.02% for the device with PET/ITO/MoO
3
to 2.97% for the device with PET/ITO/AgO
x
/MoO
3
and from 2.01% to 2.93% for device with PEDOT:PSS. In addition
the PCE of 6.21% of the flexible polymer solar cells based on poly[4
8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1
2-b;4
5-b'] dithiophene-2
6-diyl-alt-(4-(2-ethylhe-xyl)-3-fluorothieno[3
4-b]
thiophene-)-2-carboxylate-2-6-diyl(PBDTTT-EFT):[6
6]-phenyl C
71
-butyric acid methyl ester (PC
71
BM) as an photoactive layer was obtained. The efficiency improvement of the flexible OPV based on ITO is due to the increase of the work function of ITO by ITO/Ag/PEDOT:PSS or MoO
3
composition.
关键词
Keywords
references
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