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Enhanced monolayer MoS_2/InP heterostructure solar cells by graphene quantum dots

机译：石墨烯量子点增强单层MoS_2 / InP异质结构太阳能电池

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摘要

We demonstrate significantly improved photovoltaic response of monolayer molybdenum disulfide (MoS_2)/indium phosphide (InP) van der Waals heterostructure induced by graphene quantum dots (GQDs). Raman and photoluminescence measurements indicate that effective charge transfer takes place between GQDs and MoS_2, which results in n-type doping of MoS_2. The doping effect increases the barrier height at the MoS_2/InP heterojunction, thus the averaged power conversion efficiency of MoS_2/InP solar cells is improved from 2.1% to 4.1%. The light induced doping by GQD provides a feasible way for developing more efficient MoS_2 based heterostructure solar cells.
机译：我们证明了由石墨烯量子点（GQDs）诱导的单层二硫化钼（MoS_2）/磷化铟（InP）范德华异质结构的光伏响应得到了显着改善。拉曼光谱和光致发光测量表明，在GQD和MoS_2之间发生了有效的电荷转移，这导致MoS_2的n型掺杂。掺杂效应增加了MoS_2 / InP异质结处的势垒高度，因此MoS_2 / InP太阳能电池的平均功率转换效率从2.1％提高到4.1％。 GQD的光诱导掺杂为开发更有效的基于MoS_2的异质结构太阳能电池提供了可行的方法。

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  • 来源
    《Applied Physics Letters》 |2016年第16期|163901.1-163901.4|共4页
  • 作者

    Peng Wang; Shisheng Lin; Guqiao Ding; Xiaoqiang Li; Zhiqian Wu; Shengjiao Zhang; Zhijuan Xu; Sen Xu; Yanghua Lu; Wenli Xu; Zheyang Zheng;

  • 作者单位

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China,Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

    College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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