Cited 28 time in webofscience Cited 30 time in scopus

Stability comparison: A PCDTBT/PC71BM bulk-heterojunction versus a P3HT/PC71BM bulk-heterojunction

Title
Stability comparison: A PCDTBT/PC71BM bulk-heterojunction versus a P3HT/PC71BM bulk-heterojunction
Authors
Wang, DH[Wang, Dong Hwan]Kim, JK[Kim, Jung Kyu]Seo, JH[Seo, Jung Hwa]Park, OO[Park, O. Ok]Park, JH[Park, Jong Hyeok]
DGIST Authors
Park, OO[Park, O. Ok]
Issue Date
2012-06
Citation
Solar Energy Materials and Solar Cells, 101, 249-255
Type
Article
Article Type
Article
Keywords
Active LayerAir StabilityAtomic Force Microscopies (AFM)Atomic Force MicroscopyBenzothiadiazolesBulk-HeterojunctionBulk-Heterojunction (Bhj)Chemical DegradationConversion EfficiencyDegradationEnergy Dispersive X Ray SpectroscopyExperimental ConditionsHeterojunctionsLong Term StabilityMethyl EstersMorphological ChangeMorphological ChangesMorphological StudyMorphologyP-TypePoly(3-Hexylthiophene)Polycyclic Aromatic HydrocarbonsPolymer Solar Cells (PSCs)PolymersPower Conversion EfficienciesScanning Electron MicroscopyScanning Electron Microscopy ImageSemicrystallinesThermal StabilityThermodynamic StabilityX Ray Photoelectron Spectroscopies (XPS)X Ray Photoelectron SpectroscopyX Ray Spectroscopy
ISSN
0927-0248
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. © 2012 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2465
DOI
10.1016/j.solmat.2012.02.005
Publisher
Elsevier B.V.
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringETC1. Journal Articles


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