Stability comparison: A PCDTBT/PC 71BM bulk-heterojunction versus a P3HT/PC 71BM bulk-heterojunction

Dong Hwan Wang, Jung Kyu Kim, Jung Hwa Seo, O. Ok Park, Jong Hyeok Park

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

In this study, the physical and chemical degradation behaviors of active layers based on semicrystalline p-type polymer (poly(3-hexylthiophene) (P3HT)) and [6,6]-phenyl C 71 butyric acid methyl-ester (PC 71BM) are compared with the corresponding behaviors of amorphous p-type polymer of poly[N-9″-hepta-decanyl-2,7-carbazole-alt-5,5-(4′, 7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) and PC 71BM. A surface morphological study of the active layer (from Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images) and a chemical analysis (from X-ray photoelectron spectroscopy (XPS) and Energy dispersive X-ray spectroscopy (EDS) results) help explain why PCDTBT/PC 71BM bulk heterojunction (BHJ) has a higher level of long-term stability under thermal and air stability experimental conditions than a P3HT/PC 71BM-based BHJ. The power conversion efficiency for a PCDTBT/PC 71BM BHJ cell and a P3HT/PC 71BM BHJ cell decreased by 11% and 21%, respectively, after a thermal stability test and by 68% and 78%, respectively, after a 300 h air stability test.

Original languageEnglish
Pages (from-to)249-255
Number of pages7
JournalSolar Energy Materials and Solar Cells
Volume101
DOIs
Publication statusPublished - 2012 Jun 1

Fingerprint

Butyric acid
Butyric Acid
Heterojunctions
Esters
Polymers
Air
Conversion efficiency
poly(N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)
poly(3-hexylthiophene)
Energy dispersive spectroscopy
Atomic force microscopy
Thermodynamic stability
X ray photoelectron spectroscopy
Degradation
Scanning electron microscopy
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

Cite this

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abstract = "In this study, the physical and chemical degradation behaviors of active layers based on semicrystalline p-type polymer (poly(3-hexylthiophene) (P3HT)) and [6,6]-phenyl C 71 butyric acid methyl-ester (PC 71BM) are compared with the corresponding behaviors of amorphous p-type polymer of poly[N-9″-hepta-decanyl-2,7-carbazole-alt-5,5-(4′, 7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) and PC 71BM. A surface morphological study of the active layer (from Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images) and a chemical analysis (from X-ray photoelectron spectroscopy (XPS) and Energy dispersive X-ray spectroscopy (EDS) results) help explain why PCDTBT/PC 71BM bulk heterojunction (BHJ) has a higher level of long-term stability under thermal and air stability experimental conditions than a P3HT/PC 71BM-based BHJ. The power conversion efficiency for a PCDTBT/PC 71BM BHJ cell and a P3HT/PC 71BM BHJ cell decreased by 11{\%} and 21{\%}, respectively, after a thermal stability test and by 68{\%} and 78{\%}, respectively, after a 300 h air stability test.",
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Stability comparison : A PCDTBT/PC 71BM bulk-heterojunction versus a P3HT/PC 71BM bulk-heterojunction. / Wang, Dong Hwan; Kim, Jung Kyu; Seo, Jung Hwa; Park, O. Ok; Park, Jong Hyeok.

In: Solar Energy Materials and Solar Cells, Vol. 101, 01.06.2012, p. 249-255.

Research output: Contribution to journalArticle

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