Oxidation of Spiro-OMeTAD in High-Efficiency Perovskite Solar Cells

Oxidation of Spiro-OMeTAD in High-Efficiency Perovskite Solar Cells

2,2′,7,7′-Tetrakis­(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD), as an organic small molecule material, is the most commonly employed hole transport material (HTM) in perovskite solar cells (PSCs) because of its excellent properties that result in high photovoltaic performances....

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Veröffentlicht in:ACS applied materials & interfaces 2022-08, Vol.14 (30), p.34303-34327
Hauptverfasser: Ouedraogo, Nabonswende Aida Nadege, Odunmbaku, George Omololu, Guo, Bing, Chen, Shanshan, Lin, Xiaoxue, Shumilova, Tatyana, Sun, Kuan
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container_end_page 34327
container_issue 30
container_start_page 34303
container_title ACS applied materials & interfaces
container_volume 14
creator Ouedraogo, Nabonswende Aida Nadege
Odunmbaku, George Omololu
Guo, Bing
Chen, Shanshan
Lin, Xiaoxue
Shumilova, Tatyana
Sun, Kuan
description 2,2′,7,7′-Tetrakis­(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD), as an organic small molecule material, is the most commonly employed hole transport material (HTM) in perovskite solar cells (PSCs) because of its excellent properties that result in high photovoltaic performances. However, the material still suffers from low conductivity, leading to the necessary use of dopants and oxidative processes to overcome this issue. The spiro-OMeTAD oxidation process is highlighted in this review, and the main parameters involved in the process have been studied. Furthermore, the best alternatives aiming to improve the spiro-OMeTAD electrical properties have been discussed. Lastly, this review concludes with suggestions and outlooks for further research directions.
doi_str_mv 10.1021/acsami.2c06163
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