Morphology evolution by controlling solvent-solute interactions using a binary solvent in bulk heterojunction solar cells

Namchul Cho; Hin-Lap Yip; Alex K.-Y. Jen

doi:10.1063/1.4811173

Author(s)

Detail(s)

Original language	English
Article number	233903
Journal / Publication	Applied Physics Letters
Volume	102
Issue number	23
Publication status	Published - 10 Jun 2013
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1063/1.4811173 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84879119734&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(40b843f1-93fe-4e5d-9c51-b2d2d783e917).html

Abstract

Improved power conversion efficiency of poly(indacenodithiophene-co- phananthrene-quinoxaline) (PIDT-PhanQ)/[6,6]-phenyl-C71-butyric acid methyl ester (PC₇₁BM) based bulk- heterojunction (BHJ) solar cells was achieved upon adding tetrahydrofuran (THF) as a co-solvent to 1,2-dichlorobenzene (DCB). This reasonably large enhancement is achieved due to THF changes the morphology in the active layer by reducing the solvent-solute interaction. The Flory-Huggins interaction parameter and cohesive energy densities for PIDT-PhanQ and PD₇₁BM with different solvents were further studied to understand the underlying phase separation mechanism in BHJ films. © 2013 AIP Publishing LLC.

Research Area(s)

SDG 7 - Affordable and Clean Energy

Citation Format(s)

[ RIS ] [ BibTeX ]

Morphology evolution by controlling solvent-solute interactions using a binary solvent in bulk heterojunction solar cells. / Cho, Namchul; Yip, Hin-Lap ; Jen, Alex K.-Y.
In: Applied Physics Letters, Vol. 102, No. 23, 233903, 10.06.2013.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Cho, N, Yip, H-L & Jen, AK-Y 2013, 'Morphology evolution by controlling solvent-solute interactions using a binary solvent in bulk heterojunction solar cells', Applied Physics Letters, vol. 102, no. 23, 233903. https://doi.org/10.1063/1.4811173

Cho, N., Yip, H.-L., & Jen, A. K.-Y. (2013). Morphology evolution by controlling solvent-solute interactions using a binary solvent in bulk heterojunction solar cells. Applied Physics Letters, 102(23), Article 233903. https://doi.org/10.1063/1.4811173

Cho N, Yip HL , Jen AKY. Morphology evolution by controlling solvent-solute interactions using a binary solvent in bulk heterojunction solar cells. Applied Physics Letters. 2013 Jun 10;102(23):233903. doi: 10.1063/1.4811173

Cho, Namchul ; Yip, Hin-Lap ; Jen, Alex K.-Y. / Morphology evolution by controlling solvent-solute interactions using a binary solvent in bulk heterojunction solar cells. In: Applied Physics Letters. 2013 ; Vol. 102, No. 23.