daohang fenxiangbox searchbox qikanlogonew daohangnew searchboxnew navrightzone footerzone paper
中
Home > Journals > ACS Energy Letters
‹ Previous Article Next Article ›

Efficiency Improvement of Sb2Se3 Solar Cells via Grain Boundary Inversion AITranslate

Chao Chen; Kanghua Li; Shiyou Chen; Liang Wang; Shuaicheng Lu; Yuhao Liu; Dengbing Li; Haisheng Song; Jiang Tang;
People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; East China Normal University; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology; People’s Republic of China|Shenzhen R&D Center of Huazhong University of Science and Technology
AITranslate
Publisher: ACS
Share Citation Information Add to Favorites

    Scan to share on WeChat or Moments

Use WeChat scan.
Share with WeChat friends or Moments

Abstract AITranslate

Sb2Se3 is a promising low-cost and low-toxicity photovoltaic material. Recent research revealed that recombination losses in the absorber limited the efficiency of Sb2Se3 solar cells. Herein we demonstrated a strategy of grain boundary (GB) inversion to alleviate such recombination loss. Owning to its one-dimensional crystal structure, we successfully inverted the GBs of Sb2Se3 films by introducing n-type Cu interstitial doping at GBs via low-temperature CuCl2 treatment. A built-in electric field is established between p-type grain interiors and n-type GBs, which spatially separates phototogerated carriers, suppresses recombination, and enhances carrier collection. Finally, we obtained an efficiency of 7.04%, which is the highest efficiency of Sb2Se3 solar cells based on rapid thermal evaporation technology. We envision that this GB inversion strategy is generally applicable to Sb2Se3 solar cells with different device configuration or produced from other methods and is extendable to other emerging low-dimensional solar cells.

KeyWords AITranslate

No data

Basic Information:

DOI：https://doi.org/10.1021/acsenergylett.8b01456

Chinese Library Classification Number:

Citation Information:

Sb2Se3 is a promising low-cost and low-toxicity photovoltaic material. Recent research revealed that recombination losses in the absorber limited the efficiency of Sb2Se3 solar cells. Herein we demonstrated a strategy of grain boundary (GB) inversion to alleviate such recombination loss. Owning to its one-dimensional crystal structure, we successfully inverted the GBs of Sb2Se3 films by introducing n-type Cu interstitial doping at GBs via low-temperature CuCl2 treatment. A built-in electric field is established between p-type grain interiors and n-type GBs, which spatially separates phototogerated carriers, suppresses recombination, and enhances carrier collection. Finally, we obtained an efficiency of 7.04%, which is the highest efficiency of Sb2Se3 solar cells based on rapid thermal evaporation technology. We envision that this GB inversion strategy is generally applicable to Sb2Se3 solar cells with different device configuration or produced from other methods and is extendable to other emerging low-dimensional solar cells.

quote

GB/T 7714-2015 [1] Chao Chen, Kanghua Li, Shiyou Chen, et al. ACS Energy Letters, 2018(3). DOI:10.1021/acsenergylett.8b01456.
MLA [1] Chao Chen, et al., ACS Energy Letters, no. 3, 2018, https://doi.org/10.1021/acsenergylett.8b01456.
APA [1] Chao Chen, Kanghua Li, Shiyou Chen, Liang Wang, Shuaicheng Lu, Yuhao Liu, Dengbing Li, Haisheng Song, & Jiang Tang. (2018). ACS Energy Letters(3). https://doi.org/10.1021/acsenergylett.8b01456
IEEE [1] Chao Chen, Kanghua Li, Shiyou Chen, Liang Wang, Shuaicheng Lu, Yuhao Liu, Dengbing Li, Haisheng Song, and Jiang Tang, ACS Energy Letters, no. 3, 2018, doi: 10.1021/acsenergylett.8b01456.