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Stable and efficient star-shaped hole transporting materials with EDOT moiety as side arm for perovskite solar cells
- Authors
- Choi, Hyeju; Ko, Haye Min; Ko, Jaejung
- Issue Date
- 3월-2016
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Perovskite; Hole transporting materials; 3,4-Ethylenedioxythiophene; Solar cells; Organic semiconductor; Triphenylamine derivartives
- Citation
- DYES AND PIGMENTS, v.126, pp.179 - 185
- Indexed
- SCIE
SCOPUS
- Journal Title
- DYES AND PIGMENTS
- Volume
- 126
- Start Page
- 179
- End Page
- 185
- ISSN
- 0143-7208
- Abstract
- Two novel star-shaped hole transporting materials (HTMs). i.e. [BMPA-EDOT](3)-TPA and [BMPA-BTD](3)-TPA with EDOT or BTD moiety as side arm have been designed and synthesized. The optical and electronic properties of these HTMs were modified by changing the side arms. Surprisingly, the cell performance was dependent on the moietys such as EDOT or BTD of side arms. Perovskite solar cells with [BMPAEDOT](3)-TPA gave a short circuit photocurrent density (J(sc)) of 21.01 mA cm(-2), an open circuit voltage (V-oc) of 0.916 V, and a fill factor (ff) of 0.67, corresponding to an overall conversion efficiency of 12.92%. (C) 2015 Elsevier Ltd. All rights reserved.
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