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Title: Conversion efficiency improvement of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite solar cells with room temperature sputtered ZnO by adding the C{sub 60} interlayer

Abstract

We have demonstrated the performance of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite-based solar cells (SCs) with a room temperature (RT) sputtered ZnO electron transport layer by adding fullerene (C{sub 60}) interlayer. ZnO exhibits a better matched conduction band level with perovskite and Al work function and around energy offset of 2.2 eV between highest occupied molecular orbital level of CH{sub 3}NH{sub 3}PbI{sub 3} perovskite and valance band level of ZnO. However, the CH{sub 3}NH{sub 3}PbI{sub 3} perovskite layer will be damaged during direct RT sputtering deposition of ZnO. Therefore, the C{sub 60} interlayer having matched conduction band level with ZnO and CH{sub 3}NH{sub 3}PbI{sub 3} perovskite added between the CH{sub 3}NH{sub 3}PbI{sub 3} perovskite and RT sputtered ZnO layers for protection prevents sputtering damages on the CH{sub 3}NH{sub 3}PbI{sub 3} perovskite layer. The short-circuit current density (J{sub SC}, 19.41 mA/cm{sup 2}) and open circuit voltage (V{sub OC}, 0.91 V) of the SCs with glass/ITO/poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS)/perovskite/C{sub 60}/RT sputtered ZnO/Al structure is higher than the J{sub SC} (16.23 mA/cm{sup 2}) and V{sub OC} (0.90 V) of the reference SC with glass/ITO/PEDOT:PSS/perovskite/C{sub 60}/bathocuproine (BCP)/Al structure. Although the SCs with the former structure has a lower fill factor (FF%) than the SCs with the latter structure, its conversion efficiencymore » η% (10.93%) is higher than that (10.6%) of the latter.« less

Authors:
;  [1]; ;  [1];  [1]
  1. Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan (China)
Publication Date:
OSTI Identifier:
22486285
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 25; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DEPOSITION; FULLERENES; LAYERS; PERFORMANCE; PEROVSKITE; SAFETY; SOLAR CELLS; SPUTTERING; STYRENE; TEMPERATURE RANGE 0273-0400 K; ZINC OXIDES

Citation Formats

Lai, Wei-Chih, Chen, Peter, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan, Lin, Kun-Wei, Wang, Yuan-Ting, Guo, Tzung-Fang, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan, and Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan. Conversion efficiency improvement of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite solar cells with room temperature sputtered ZnO by adding the C{sub 60} interlayer. United States: N. p., 2015. Web. doi:10.1063/1.4938570.
Lai, Wei-Chih, Chen, Peter, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan, Lin, Kun-Wei, Wang, Yuan-Ting, Guo, Tzung-Fang, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan, & Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan. Conversion efficiency improvement of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite solar cells with room temperature sputtered ZnO by adding the C{sub 60} interlayer. United States. https://doi.org/10.1063/1.4938570
Lai, Wei-Chih, Chen, Peter, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan, Lin, Kun-Wei, Wang, Yuan-Ting, Guo, Tzung-Fang, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan, and Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan. Mon . "Conversion efficiency improvement of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite solar cells with room temperature sputtered ZnO by adding the C{sub 60} interlayer". United States. https://doi.org/10.1063/1.4938570.
@article{osti_22486285,
title = {Conversion efficiency improvement of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite solar cells with room temperature sputtered ZnO by adding the C{sub 60} interlayer},
author = {Lai, Wei-Chih and Chen, Peter and Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan and Lin, Kun-Wei and Wang, Yuan-Ting and Guo, Tzung-Fang and Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan and Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan},
abstractNote = {We have demonstrated the performance of inverted CH{sub 3}NH{sub 3}PbI{sub 3} perovskite-based solar cells (SCs) with a room temperature (RT) sputtered ZnO electron transport layer by adding fullerene (C{sub 60}) interlayer. ZnO exhibits a better matched conduction band level with perovskite and Al work function and around energy offset of 2.2 eV between highest occupied molecular orbital level of CH{sub 3}NH{sub 3}PbI{sub 3} perovskite and valance band level of ZnO. However, the CH{sub 3}NH{sub 3}PbI{sub 3} perovskite layer will be damaged during direct RT sputtering deposition of ZnO. Therefore, the C{sub 60} interlayer having matched conduction band level with ZnO and CH{sub 3}NH{sub 3}PbI{sub 3} perovskite added between the CH{sub 3}NH{sub 3}PbI{sub 3} perovskite and RT sputtered ZnO layers for protection prevents sputtering damages on the CH{sub 3}NH{sub 3}PbI{sub 3} perovskite layer. The short-circuit current density (J{sub SC}, 19.41 mA/cm{sup 2}) and open circuit voltage (V{sub OC}, 0.91 V) of the SCs with glass/ITO/poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS)/perovskite/C{sub 60}/RT sputtered ZnO/Al structure is higher than the J{sub SC} (16.23 mA/cm{sup 2}) and V{sub OC} (0.90 V) of the reference SC with glass/ITO/PEDOT:PSS/perovskite/C{sub 60}/bathocuproine (BCP)/Al structure. Although the SCs with the former structure has a lower fill factor (FF%) than the SCs with the latter structure, its conversion efficiency η% (10.93%) is higher than that (10.6%) of the latter.},
doi = {10.1063/1.4938570},
url = {https://www.osti.gov/biblio/22486285}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 25,
volume = 107,
place = {United States},
year = {2015},
month = {12}
}