Acridine-based novel hole transporting material for high efficiency perovskite solar cells
- Authors
- Cho, AN[Cho, An-Na]; Chakravarthi, N[Chakravarthi, Nallan]; Kranthiraja, K[Kranthiraja, Kakaraparthi]; Reddy, SS[Reddy, Saripally Sudhaker]; Kim, HS[Kim, Hui-Seon]; Jin, SH[Jin, Sung-Ho]; Park, NG[Park, Nam-Gyu]
- Issue Date
- 28-Apr-2017
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.16, pp.7603 - 7611
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY A
- Volume
- 5
- Number
- 16
- Start Page
- 7603
- End Page
- 7611
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/29342
- DOI
- 10.1039/c7ta01248a
- ISSN
- 2050-7488
- Abstract
- 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 x 10(-3) cm(2) V-1 s(-1), which is comparable to the mobility of the classical spiro-MeOTAD (2.63 x 10(-3) cm(2) 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.
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Collections - Engineering > Chemical Engineering > 1. Journal Articles
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