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This content will become publicly available on August 21, 2018

Title: Single crystalline CH 3NH 3PbI 3 self-grown on FTO/TiO 2 substrate for high efficiency perovskite solar cells

In this work, we developed an innovative approach to self-grow single crystalline CH 3NH 3PbI 3 directly on polycrystalline FTO/TiO 2 substrate, with which n-i-p type of perovskite solar cells were fabricated. The single crystalline nature of CH 3NH 3PbI 3 has been confirmed by X-ray diffraction and high resolution transmission electron microscopy, and it is observed that they possess smaller optic band gap and longer carrier life time. Highly efficient charge extractions occur at the interface between electron collecting TiO 2 and photo-harvesting CH 3NH 3PbI 3, resulting in a maximum short-circuit current density of 24.40 mA/cm 2. The champion cell possesses a photovoltaic conversion efficiency of 8.78%, and there are still substantial room for further improvement, making it promising for the perovskite solar cell applications.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [7] ;  [2] ;  [2] ;  [4] ;  [8] ;  [5]
  1. Shijiazhuang Tiedao Univ., Shijiazhuang (China). School of Materials Science and Engineering; Chinese Academy of Sciences (CAS), Shenzhen (China). Shenzhen Key Lab. of Nanobiomechanics, Shenzhen Inst. of Advanced Technology
  2. Shijiazhuang Tiedao Univ., Shijiazhuang (China). School of Materials Science and Engineering
  3. Peking Univ., Beijing (China). School of Physics, Electron Microscopy Lab., and International Center for Quantum Materials; Harbin Inst. of Technology (China). State Key Lab. of Advanced Welding and Joining
  4. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  5. Chinese Academy of Sciences (CAS), Shenzhen (China). Shenzhen Key Lab. of Nanobiomechanics, Shenzhen Inst. of Advanced Technology; Univ. of Washington, Seattle, WA (United States). Dept. of Mechanical Engineering
  6. Chinese Academy of Sciences (CAS), Shenzhen (China). Shenzhen Key Lab. of Nanobiomechanics, Shenzhen Inst. of Advanced Technology
  7. Chinese Academy of Sciences (CAS), Shenyang (China). Shenyang National Lab. for Materials Science (SYNL), Inst. of Metal Research
  8. Peking Univ., Beijing (China). School of Physics, Electron Microscopy Lab., and International Center for Quantum Materials; Collaborative Innovation Center of Quantum Matter, Beijing (China)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Science Bulletin
Additional Journal Information:
Journal Volume: 62; Journal Issue: 17; Journal ID: ISSN 2095-9273
Publisher:
Elsevier; Science China Press
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC); National Key Research and Development Program of China; National Natural Science Foundation of China (NNSFC)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY
OSTI Identifier:
1427536