Journal
SOLAR ENERGY
Volume 206, Issue -, Pages 279-286Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2020.06.016
Keywords
Molecular engineering; Photovoltaics; Perovskite solar cells; Solar energy; Hole transport materials
Categories
Funding
- Egyptian Cultural and Educational Bureau
- JSPS KAKENHI [18H02079]
- [NRF-2016M1A2A2940912]
- [2015M1A2A2054996]
Ask authors/readers for more resources
Two novel highly conjugated small organic molecules as hole transporting materials (HTMs) coded T(EDOT-TPA) 2 and DBT(QT-TPA)(2) were designed and developed by utilizing facile synthetic procedures with high yields. The fabricated perovskite solar cells (PSCs) utilizing these HTMs without any dopants under 1 sun illumination (100 mW cm(-2), AM 1.5G) and surface area of 1.02 cm(2) achieved a short circuit current (J(SC) = 19.23), open circuit voltage (V-OC = 1.042), fill factor (FF = 0.679) and overall power conversion efficiency (PCE = 13.61%) for DBT(QT-TPA)(2). While, T(EDOT-TPA)(2) exhibited (J(SC) = 20.25, V-OC = 1.04, FF = 0.583, and PCE = 12.27%). These dopant free HTM based PSCs achieved superior PCEs compared to that of undoped Spiro-OMeTAD (PCE = 9.34%) based PSCs and a comparable photovoltaic performance to the PSCs using doped Spiro-OMeTAD (J(SC) = 20.37, V-OC = 1.057, FF = 0.74, and PCE = 15.93) as the HTM under same fabrication conditions. Noticeably, the absence of additives is of significant importance, as DBT(QT-TPA) 2 and T(EDOT-TPA)(2) based PSCs still produces a J(sc) up to 20.25 mA cm(-2) and a comparable PCE of 13.61%, which reduces the fabrication cost of cm sized PSCs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available