Solution-Processed Bulk Heterojunction Solar Cells with Silyl End-Capped Sexithiophene
Joint Authors
Fukuzumi, Shunichi
Kim, Youn-Su
Choi, Jung Hei
Kim, Taehee
Yoon, Ung Chan
Kim, Kyungkon
El-Khouly, Mohamed E.
Source
International Journal of Photoenergy
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-16
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
We fabricated solution-processed organic photovoltaic cells (OPVs) using substituted two sexithiophenes, a,w-bis(dimethyl-n-octylsilyl)sexithiophene (DSi-6T) and a,w-dihexylsexithiophene (DH-6T), as electron donors, and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as an electron acceptor.
Solution-processed OPVs using DH-6T and DSi-6T showed good photovoltaic properties in spite of their poor solubility.
The best performance was observed on DSi-6T : PCBM 1 : 5 (w/w) blend cell with an open circuit voltage (Voc) of 0.63 V, short circuit current density (Jsc) of 1.34 mA/cm2, fill factor (FF) of 55%, and power conversion efficiency of 0.44% under AM 1.5 G illumination.
Although DH-6T has higher hole mobility than DSi-6T, the DSi-6T : PCBM blend cell showed higher hole mobility than DH-6T : PCBM cell.
Therefore, DSi-6T cell showed higher device performance than DH-6T cell due to its silyl substitutions, which lead to the increase of the solubility.
The incorporation of solution-processed TiO2 interfacial layer in the DSi-6T : PCBM devices significantly enhances FF due to the reduced charge recombination near active layer/Al interface.
American Psychological Association (APA)
Choi, Jung Hei& El-Khouly, Mohamed E.& Kim, Taehee& Kim, Youn-Su& Yoon, Ung Chan& Fukuzumi, Shunichi…[et al.]. 2013. Solution-Processed Bulk Heterojunction Solar Cells with Silyl End-Capped Sexithiophene. International Journal of Photoenergy،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-502732
Modern Language Association (MLA)
Choi, Jung Hei…[et al.]. Solution-Processed Bulk Heterojunction Solar Cells with Silyl End-Capped Sexithiophene. International Journal of Photoenergy No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-502732
American Medical Association (AMA)
Choi, Jung Hei& El-Khouly, Mohamed E.& Kim, Taehee& Kim, Youn-Su& Yoon, Ung Chan& Fukuzumi, Shunichi…[et al.]. Solution-Processed Bulk Heterojunction Solar Cells with Silyl End-Capped Sexithiophene. International Journal of Photoenergy. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-502732
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-502732