Efficiency enhancement of Polymer solar cells by adding Bilayer Alq3/CaF2 Cathode Buffer Layers
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- 英文论文题名：Efficiency enhancement of Polymer solar cells by adding Bilayer Alq3/CaF2 Cathode Buffer Layers
- 论文作者：Xu Xu ; Xiangwei Qu ; Panpan Zhang ; Bonan Kang
- 英文论文作者：Xu Xu ; Xiangwei Qu ; Panpan Zhang ; Bonan Kang ; State Key Laboratory on Integrated Optoelectronics ; College of Electronic Science and Engineering ; Jilin University
- 年：2017
- 作者机构：State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University;
- 英文论文关键词：polymer solar cells ; bilayer cathode buffer layer ; CaF2 ; charge transport ; interfacial engineering ; power conversion efficiency
- 会议召开时间：2017-05-27
- 会议录名称：第四届新型太阳能电池学术研讨会论文集
- 英文会议录名称：Abstract Book of the 4th Conference on New Generation Solar Cells
- 语种：英文
- 分类号：TM914.4
- 学会代码：ZKYQ
- 会议名称：第四届新型太阳能电池学术研讨会
- 会议地点：中国北京
- 主办单位：中国可再生能源学会光化学专业委员会
- 学会名称：中国科学院物理研究所清洁能源实验室
- 页数：1
- 文件大小：505k
- 原文格式：D
- 会议级别：全国
摘要
In the polymer solar cells(PSCs), the photocurrent lies not only on the optical characteristics of organic active layer materials and the ability of electrode to extraction/collection the charge, but also on the properties of the organic active layer/electrode interface.Buffer layer can play a good role in the modification between active layer and electrode.Therefore, we introduce of bilayer Alq_3/CaF_2 cathode buffer layers for PCDTBT and PC_(71)BM-based PSCs.We investigate the properties of devices with CaF_2 cathode buffer layer and Alq_3/CaF_2 cathode bilayer buffer layer which were inserted between the active layer and cathode, and it is found that the power conversion efficiencies of devices with Alq_3/CaF_2 bilayer structure exhibits a V_(OC) of 0.90 V, a J_(SC) of 12.77mA/cm~2, a FF of 65.50% and a best PCE of 7.48%.Alq_3 is an organic small molecule material as an electron extraction layer.CaF_2 can form a better interface contact by reducing series resistance(Rs) of PSCs.The enhancement of PCE is attributed to Alq_3/CaF_2 cathode buffer layer improve the generation of photocurrent and interfacial contact for efficient charge transfer.
In the polymer solar cells(PSCs), the photocurrent lies not only on the optical characteristics of organic active layer materials and the ability of electrode to extraction/collection the charge, but also on the properties of the organic active layer/electrode interface.Buffer layer can play a good role in the modification between active layer and electrode.Therefore, we introduce of bilayer Alq_3/CaF_2 cathode buffer layers for PCDTBT and PC_(71)BM-based PSCs.We investigate the properties of devices with CaF_2 cathode buffer layer and Alq_3/CaF_2 cathode bilayer buffer layer which were inserted between the active layer and cathode, and it is found that the power conversion efficiencies of devices with Alq_3/CaF_2 bilayer structure exhibits a V_(OC) of 0.90 V, a J_(SC) of 12.77mA/cm~2, a FF of 65.50% and a best PCE of 7.48%.Alq_3 is an organic small molecule material as an electron extraction layer.CaF_2 can form a better interface contact by reducing series resistance(Rs) of PSCs.The enhancement of PCE is attributed to Alq_3/CaF_2 cathode buffer layer improve the generation of photocurrent and interfacial contact for efficient charge transfer.
In the polymer solar cells(PSCs), the photocurrent lies not only on the optical characteristics of organic active layer materials and the ability of electrode to extraction/collection the charge, but also on the properties of the organic active layer/electrode interface.Buffer layer can play a good role in the modification between active layer and electrode.Therefore, we introduce of bilayer Alq_3/CaF_2 cathode buffer layers for PCDTBT and PC_(71)BM-based PSCs.We investigate the properties of devices with CaF_2 cathode buffer layer and Alq_3/CaF_2 cathode bilayer buffer layer which were inserted between the active layer and cathode, and it is found that the power conversion efficiencies of devices with Alq_3/CaF_2 bilayer structure exhibits a V_(OC) of 0.90 V, a J_(SC) of 12.77mA/cm~2, a FF of 65.50% and a best PCE of 7.48%.Alq_3 is an organic small molecule material as an electron extraction layer.CaF_2 can form a better interface contact by reducing series resistance(Rs) of PSCs.The enhancement of PCE is attributed to Alq_3/CaF_2 cathode buffer layer improve the generation of photocurrent and interfacial contact for efficient charge transfer.
引文
[1]F.Lin,X.Liu,Y.Li,Y.Hu,X.Guo,Adv.Funct.Mater.,2015,25,6906-6912.
[2]H.Yip,A.-Y.Jen,Energy Environ.Sci.,2012,5,5994–6011.
[3]R.Po,C.Carbonera,A.Bernardi,N.Camaioni,Energy Environ.Sci.,2011,4,285–310.
[2]H.Yip,A.-Y.Jen,Energy Environ.Sci.,2012,5,5994–6011.
[3]R.Po,C.Carbonera,A.Bernardi,N.Camaioni,Energy Environ.Sci.,2011,4,285–310.