o-Methoxy Substituents in Spiro-OMeTAD for Efficient Inorganic-Organic Hybrid Perovskite Solar Cells
- Authors
- Jeon, NJ[Jeon, Nam Joong]; Lee, HG[Lee, Hag Geun]; Kim, YC[Kim, Young Chan]; Seo, J[Seo, Jangwon]; Noh, JH[Noh, Jun Hong]; Lee, J[Lee, Jaemin]; Seok, SI[Seok, Sang Il]
- Issue Date
- 4-Jun-2014
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.136, no.22, pp.7837 - 7840
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- Volume
- 136
- Number
- 22
- Start Page
- 7837
- End Page
- 7840
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/52657
- DOI
- 10.1021/ja502824c
- ISSN
- 0002-7863
- Abstract
- Three spiro-OMeTAD derivatives have been synthesized and characterized by H-1/C-13 NMR spectroscopy and mass spectrometry. The optical and electronic properties of the derivatives were modified by changing the positions of the two methoxy substituents in each of the quadrants, as monitored by UV-vis spectroscopy and cyclic voltammetry measurements. The derivatives were employed as hole-transporting materials (HTMs), and their performances were compared for the fabrication of mesoporous TiO2/CH3NH3PbI3/HTM/Au solar cells. Surprisingly, the cell performance was dependent on the positions of the OMe substituents. The derivative with o-OMe substituents showed highly improved performance by exhibiting a short-circuit current density of 21.2 mA/cm(2), an open-circuit voltage of 1.02 V, and a fill factor of 77.6% under 1 sun illumination (100 mW/cm(2)), which resulted in an overall power conversion efficiency (PCE) of 16.7%, compared to similar to 15% for conventional p-OMe substituents. The PCE of 16.7% is the highest value reported to date for perovskite-based solar cells with spiro-OMeTAD.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Energy Science > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.