TY - JOUR
T1 - Acridine-based novel hole transporting material for high efficiency perovskite solar cells
AU - Cho, An-Na
AU - Chakravarthi, Nallan
AU - Kranthiraja, Kakaraparthi
AU - Reddy, Saripally Sudhaker
AU - Kim, Hui-Seon
AU - Jin, Sung-Ho
AU - Park, Nam-Gyu
N1 - Funding Information:
A.-N. C. and N. C. contributed equally to this study. This study was supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy (No. 20143030011560) and the National Research Foundation of Korea (NRF) grants funded by the Ministry of Science, ICT & Future Planning (MSIP) of Korea under contracts No. NRF-2012M3A6A7054861 (Global Frontier R&D Program on Center for Multiscale Energy System), NRF-2015M1A2A2053004, (Climate Change Management Program), NRF-2012M3A7B4049986 (Nano Material Technology Development Program) and NRF-2016R1E1A1A01942593. The study was also supported in part by NRF-2016M3D1A1027663 and NRF-2016M3D1A1027664 (Future Materials Discovery Program).
Publisher Copyright:
© The Royal Society of Chemistry.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017
Y1 - 2017
N2 - An acridine-based hole transporting material (ACR-TPA) without the spirobifluorene motif is synthesized via non complicated steps. The ACR-TPA film including Li-TFSI and 4-tert-butylpyridine (tBP) additives exhibits a hole mobility of 3.08 × 10−3 cm2 V−1 s−1, which is comparable to the mobility of the classical spiro-MeOTAD (2.63 × 10−3 cm2 V−1 s−1), and its HOMO level of −5.03 eV is slightly lower than that of spiro-MeOTAD (−4.97 eV). ACR-TPA layers with different thicknesses are applied to MAPbI3 perovskite solar cells, where power conversion efficiency (PCE) increases as the ACR-TPA layer thickness increases due to increased recombination resistance and fast charge separation. The best PCE of 16.42% is achieved from the ca. 250 nm-thick ACR-TPA, which is comparable to the PCE of 16.26% for a device with spiro-MeOTAD in the same device configuration. It is thus anticipated that ACR-TPA can be a promising alternative to spiro-MeOTAD because of its lower cost and comparable photovoltaic performance.
AB - An acridine-based hole transporting material (ACR-TPA) without the spirobifluorene motif is synthesized via non complicated steps. The ACR-TPA film including Li-TFSI and 4-tert-butylpyridine (tBP) additives exhibits a hole mobility of 3.08 × 10−3 cm2 V−1 s−1, which is comparable to the mobility of the classical spiro-MeOTAD (2.63 × 10−3 cm2 V−1 s−1), and its HOMO level of −5.03 eV is slightly lower than that of spiro-MeOTAD (−4.97 eV). ACR-TPA layers with different thicknesses are applied to MAPbI3 perovskite solar cells, where power conversion efficiency (PCE) increases as the ACR-TPA layer thickness increases due to increased recombination resistance and fast charge separation. The best PCE of 16.42% is achieved from the ca. 250 nm-thick ACR-TPA, which is comparable to the PCE of 16.26% for a device with spiro-MeOTAD in the same device configuration. It is thus anticipated that ACR-TPA can be a promising alternative to spiro-MeOTAD because of its lower cost and comparable photovoltaic performance.
UR - http://www.scopus.com/inward/record.url?scp=85018524191&partnerID=8YFLogxK
U2 - 10.1039/c7ta01248a
DO - 10.1039/c7ta01248a
M3 - Article
AN - SCOPUS:85018524191
SN - 2050-7488
VL - 5
SP - 7603
EP - 7611
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 16
ER -
