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Chemical engineering journal v.315, 2017년, pp.621 - 629   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

An easily prepared carbon quantum dots and employment for inverted organic photovoltaic devices

Zhang, Xinyuan (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China ) ; Liu, Chunyu (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China ) ; Li, Zhiqi (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China ) ; Guo, Jiaxin (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China ) ; Shen, Liang (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China ) ; Guo, Wenbin (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China ) ; Zhang, Liu (College of Instr ) ; Ruan, Shengping ; Long, Yongbing ;
  • 초록  

    Abstract In this paper, the performance enhancement of organic solar cells based on PCDTBT:PC 71 BM and P3HT:PC 60 BM are demonstrated via employing carbon quantum dots (CQD) to modify the metal oxide electron transport layer. The incorporated CQD with carboxylic acid (–COOH) groups could induce self-assembled monolayer (SAM) with TiO 2 buffer layer, which lowered the energy barrier for electron transfer and reduced the inherent incompatibility between the metal oxide and organic active layers. Further investigation shows that SAM of TiO 2 with CQD can improve the photo-induced exciton dissociation and charge transfer, leading to a low electron accumulation in charge transport layer and a reduced interface recombination loss. Highlights Dual electron transporting layer is used in organic solar cells. The energy barrier for electron transport is decreased. The balanced charge transfer of electron and hole is achieved. Well contact of active layer and cathode is realized. Electron extraction improvement by a good energy levels tailorment.


  • 주제어

    Electron transport and extraction .   Self-assembled monolayer .   Power conversion efficiency .   Work function.  

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