Enhanced Performance of Polymer Bulk Heterojunction Solar Cells with a Boronic Acid Functionalized Carbon Nanotubes Doped Buffer Layer
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- 英文论文题名：Enhanced Performance of Polymer Bulk Heterojunction Solar Cells with a Boronic Acid Functionalized Carbon Nanotubes Doped Buffer Layer
- 论文作者：Yang Dang ; Shiwei Zhuang ; Bonan Kang
- 英文论文作者：Yang Dang ; Shiwei Zhuang ; 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 ; boronic acid functionalized CNTs ; built-in voltage ; carrier mobilities
- 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：723k
- 原文格式：D
- 会议级别：全国
摘要
One-dimensional nanomaterials such as nanorods or nanotubes have attracted attention to develop its applications in varies fields and many efforts have been made to exploit the optoeletronic properties.In this regard, carbon nanotubes(CNTs) are an ideal material, as they have excellent carrier mobility, mechanical flexibility, and compatibility with the solution process.Despite these conceptual advantages, however, polymer solar cells(PSCs) with carboxyl functionalized CNTs incorporated in their anode buffer layers have demonstrated significantly poor performance, due to the surface of CNTs has many oxygen-rich functional groups.Thus, the optical and electrical properties of CNTs can be tuned by modifying CNTs with functional groups.In this study, we demonstrate a simple synthetic route of boronic acid functionalized CNTs(bf-CNTs) and study of PEDOT:PSS:bf-CNTs buffer layer for high efficiency PSCs.By controlling the concentration of bf-CNTs(0-0.5 wt% in PEDOT:PSS), we found that the Jsc of the PSCs was increased from 10.90 to 12.51 mA/cm~2, the Voc was increased from 0.78 to 0.88 V, and an enhanced PCE from 5.02% to 6.95% was further achieved.The effects on enhancement of device performance are originated from an increase in built-in voltage across the device.Combined with decreased series resistance and increased mobilities, accelerated and enlarged charge extraction and reduced charge recombination were obtained.All these effects induce a simultaneous enhancement in the Jsc and Voc of device performance after utilizing the bf-CNTs doped buffer layers.
One-dimensional nanomaterials such as nanorods or nanotubes have attracted attention to develop its applications in varies fields and many efforts have been made to exploit the optoeletronic properties.In this regard, carbon nanotubes(CNTs) are an ideal material, as they have excellent carrier mobility, mechanical flexibility, and compatibility with the solution process.Despite these conceptual advantages, however, polymer solar cells(PSCs) with carboxyl functionalized CNTs incorporated in their anode buffer layers have demonstrated significantly poor performance, due to the surface of CNTs has many oxygen-rich functional groups.Thus, the optical and electrical properties of CNTs can be tuned by modifying CNTs with functional groups.In this study, we demonstrate a simple synthetic route of boronic acid functionalized CNTs(bf-CNTs) and study of PEDOT:PSS:bf-CNTs buffer layer for high efficiency PSCs.By controlling the concentration of bf-CNTs(0-0.5 wt% in PEDOT:PSS), we found that the Jsc of the PSCs was increased from 10.90 to 12.51 mA/cm~2, the Voc was increased from 0.78 to 0.88 V, and an enhanced PCE from 5.02% to 6.95% was further achieved.The effects on enhancement of device performance are originated from an increase in built-in voltage across the device.Combined with decreased series resistance and increased mobilities, accelerated and enlarged charge extraction and reduced charge recombination were obtained.All these effects induce a simultaneous enhancement in the Jsc and Voc of device performance after utilizing the bf-CNTs doped buffer layers.
One-dimensional nanomaterials such as nanorods or nanotubes have attracted attention to develop its applications in varies fields and many efforts have been made to exploit the optoeletronic properties.In this regard, carbon nanotubes(CNTs) are an ideal material, as they have excellent carrier mobility, mechanical flexibility, and compatibility with the solution process.Despite these conceptual advantages, however, polymer solar cells(PSCs) with carboxyl functionalized CNTs incorporated in their anode buffer layers have demonstrated significantly poor performance, due to the surface of CNTs has many oxygen-rich functional groups.Thus, the optical and electrical properties of CNTs can be tuned by modifying CNTs with functional groups.In this study, we demonstrate a simple synthetic route of boronic acid functionalized CNTs(bf-CNTs) and study of PEDOT:PSS:bf-CNTs buffer layer for high efficiency PSCs.By controlling the concentration of bf-CNTs(0-0.5 wt% in PEDOT:PSS), we found that the Jsc of the PSCs was increased from 10.90 to 12.51 mA/cm~2, the Voc was increased from 0.78 to 0.88 V, and an enhanced PCE from 5.02% to 6.95% was further achieved.The effects on enhancement of device performance are originated from an increase in built-in voltage across the device.Combined with decreased series resistance and increased mobilities, accelerated and enlarged charge extraction and reduced charge recombination were obtained.All these effects induce a simultaneous enhancement in the Jsc and Voc of device performance after utilizing the bf-CNTs doped buffer layers.
引文
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[2]Lee,j.M.Park,J.S.Lee S.H.Kim,H.Yoo,S.Kim,S.O.Adv.Mater.2011,23,629–633