Control of the nanoscale crystallinity and phase separation in polymer solar cells

Chih Wei Chu; Hoichang Yang; Wei Jen Hou; Jinsong Huang; Gang Li; Yang Yang

doi:10.1063/1.2891884

Control of the nanoscale crystallinity and phase separation in polymer solar cells

Chih Wei Chu, Hoichang Yang, Wei Jen Hou, Jinsong Huang, Gang Li, Yang Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

198 Citations (Scopus)

Abstract

Grazing-incidence x-ray diffraction and atomic force microscopy were performed on bulk heterojunction regioregular poly(3-hexylthiophene) (RR-P3HT) [6,6]-phenyl- C71 -butyric acid methyl esters spin-cast films with different film processing conditions to correlate the crystalline nanostructure of P3HT with the corresponding solar cell performance. The increase in long wavelength absorption for solvent annealed films is related to highly conjugated crystal structure of RR-P3HT phase-separated in the active layer. Upon thermal annealing, the solvent annealed 50-nm -thick device shows high solar cell performance with fill factor up to 73% and power conversion efficiency of 3.80%.

Original language	English
Article number	103306
Journal	Applied Physics Letters
Volume	92
Issue number	10
DOIs	https://doi.org/10.1063/1.2891884
Publication status	Published - 24 Mar 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2891884

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title = "Control of the nanoscale crystallinity and phase separation in polymer solar cells",

abstract = "Grazing-incidence x-ray diffraction and atomic force microscopy were performed on bulk heterojunction regioregular poly(3-hexylthiophene) (RR-P3HT) [6,6]-phenyl- C71 -butyric acid methyl esters spin-cast films with different film processing conditions to correlate the crystalline nanostructure of P3HT with the corresponding solar cell performance. The increase in long wavelength absorption for solvent annealed films is related to highly conjugated crystal structure of RR-P3HT phase-separated in the active layer. Upon thermal annealing, the solvent annealed 50-nm -thick device shows high solar cell performance with fill factor up to 73% and power conversion efficiency of 3.80%.",

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AU - Chu, Chih Wei

AU - Yang, Hoichang

AU - Hou, Wei Jen

AU - Huang, Jinsong

AU - Li, Gang

AU - Yang, Yang

PY - 2008/3/24

Y1 - 2008/3/24

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AB - Grazing-incidence x-ray diffraction and atomic force microscopy were performed on bulk heterojunction regioregular poly(3-hexylthiophene) (RR-P3HT) [6,6]-phenyl- C71 -butyric acid methyl esters spin-cast films with different film processing conditions to correlate the crystalline nanostructure of P3HT with the corresponding solar cell performance. The increase in long wavelength absorption for solvent annealed films is related to highly conjugated crystal structure of RR-P3HT phase-separated in the active layer. Upon thermal annealing, the solvent annealed 50-nm -thick device shows high solar cell performance with fill factor up to 73% and power conversion efficiency of 3.80%.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Control of the nanoscale crystallinity and phase separation in polymer solar cells

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