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Investigation of Various Active Layers for Their Performance on Organic Solar Cells
- Source :
- Materials; Volume 9; Issue 8; Pages: 667, Materials, Materials, Vol 9, Iss 8, p 667 (2016)
- Publication Year :
- 2016
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2016.
-
Abstract
- The theoretical mechanism of open-circuit voltages (VOC) in OSCs based on various small molecule organic materials is studied. The structure under investigation is simple planar heterojunction (PHJ) by thermal vacuum evaporation deposition. The various wide band gaps of small molecule organic materials are used to enhance the power conversion efficiency (PCE). The donor materials used in the device include: Alpha-sexithiophene (α-6T), Copper(II) phthalocyanine (CuPc), boron subnaphthalocyanine chloride (SubNc) and boron Subphthalocyanine chloride (SubPc). It is combined with fullerene or SubPc acceptor material to obtain a comprehensive understanding of the charge transport behavior. It is found that the VOC of the device is largely limited by charge transport. This was associated with the space charge effects and hole accumulation. These results are attributed to the improvement of surface roughness and work function after molybdenum trioxide (MoO3) is inserted as an anode buffer layer.
- Subjects :
- Materials science
Organic solar cell
Inorganic chemistry
thermal vacuum evaporation deposition
02 engineering and technology
open-circuit voltages
010402 general chemistry
lcsh:Technology
01 natural sciences
Article
Molybdenum trioxide
chemistry.chemical_compound
General Materials Science
Work function
lcsh:Microscopy
lcsh:QC120-168.85
lcsh:QH201-278.5
lcsh:T
Heterojunction
021001 nanoscience & nanotechnology
Acceptor
Space charge
small molecule organic solar cells
0104 chemical sciences
Anode
chemistry
Chemical engineering
lcsh:TA1-2040
Phthalocyanine
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
lcsh:TK1-9971
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials; Volume 9; Issue 8; Pages: 667
- Accession number :
- edsair.doi.dedup.....b8cfc7e05bc818156f2666123073e48f
- Full Text :
- https://doi.org/10.3390/ma9080667