Investigation of the enhanced performance and lifetime of organic solar cells using solution-processed carbon dots as the electron transport layers
Investigation of the enhanced performance and lifetime of organic solar cells using solution-processed carbon dots as the electron transport layers
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研究使用溶液处理的碳点作为电子传输层的有机太阳能电池的增强性能和寿命
DOI：
10.1039/c5tc02957k
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发表时间：
2015-12
影响因子：
6.4
通讯作者：
Yongsheng Chen
中科院分区：
文献类型：
--
作者：
Haijun Zhang;Qian Zhang;Miaomiao Li;Bin Kan;Wang Ni;Yunchuang Wang;Xuan Yang;Chenxia Du;Xiangjian Wan;Yongsheng Chen
容易制备和稳定的溶液处理的碳量子点（CD）已被用作小分子和聚合物基太阳能电池的电子传输层（ETL），并进行了系统的研究。观察到显著增强的器件性能和寿命。增强的性能主要是由短路电流（Jsc）和填充因子（FF）的改善驱动的，所述改善是由减小Al电极和串联电阻的功函数、增加分流电阻以及平衡电子和空穴迁移率引起的。因此，具有CD作为ETL的器件具有更高的电荷传输和收集效率。此外，由于与作为ETL的LiF相比，CD材料的空气稳定性好得多，因此具有CD作为ETL的器件的寿命也显著提高。另一个原因是，它可以有效地防止在界面处形成不稳定的阴极接触，用于Al离子的扩散。这些结果表明，相对便宜和稳定的材料，光盘有很大的潜力，是有前途的ETL材料的工业规模的有机太阳能电池的制造。
Easily prepared and stable solution-processed carbon dots (CDs) have been used and systematically investigated as the electron transport layers (ETLs) for both small-molecule and polymer-based solar cells. Significantly enhanced device performance and lifetime are observed. The enhanced performance is mainly driven by the improvements of the short circuit current (Jsc) and the fill factor (FF), caused by decreasing the work function of Al electrodes and series resistance, increasing shunt resistances, and balancing electrons and hole mobility. Therefore, the devices with CDs as the ETLs have higher charge transport and collection efficiency. In addition, lifetimes of the devices with CDs as the ETLs are also significantly improved, due to the much better air-stability of CD materials compared to LiF as the ETLs. And another reason is that it can efficiently prevent the formation of an unstable cathode contact for the diffusion of Al ions at the interface. These results indicate that CDs, relatively cheap and stable materials, have great potential to be promising ETL materials for industrial-scale manufacture of organic solar cells.
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影响因子：
29.4
作者：
Beliatis, Michail J.;Gandhi, Keyur K.;Rozanski, Lynn J.;Rhodes, Rhys;McCafferty, Liam;Alenezi, Mohammad R.;Alshammari, Abdullah S.;Mills, Christopher A.;Jayawardena, K. D. G. Imalka;Henley, Simon J.;Silva, S. Ravi P.
通讯作者：
Silva, S. Ravi P.
电子传输层对溶液处理小分子有机太阳能电池性能的影响
影响因子：
8.4
作者：
Long Guankui;Wan Xiangjian;Kan Bin;Hu Zhicheng;Yang Xuan;Zhang Yi;Zhang Mingtao;Wu Hongbing;Huang Fei;Su Shijian;Cao Yong;Chen Yongsheng
通讯作者：
Chen Yongsheng
DOI：
10.1007/s11426-014-5273-x
发表时间：
2015-01
期刊：
Science China Chemistry
影响因子：
--
作者：
Shaoqing Zhang;L. Ye;Wenchao Zhao;Bei Yang;Qi Wang;Jianhui Hou
通讯作者：
Shaoqing Zhang;L. Ye;Wenchao Zhao;Bei Yang;Qi Wang;Jianhui Hou
影响因子：
10.8
作者：
Kyaw, Aung Ko Ko;Wang, Dong Hwan;Heeger, Alan J.
通讯作者：
Heeger, Alan J.
影响因子：
29.4
作者：
Xin Zhang;Zhenhuan Lu;L. Ye;C. Zhan;Jianhui Hou;Shaoqing Zhang;Bo Jiang;Yan Zhao;Jianhua Huang-Ji
通讯作者：
Xin Zhang;Zhenhuan Lu;L. Ye;C. Zhan;Jianhui Hou;Shaoqing Zhang;Bo Jiang;Yan Zhao;Jianhua Huang-Ji