Organic Thin-Film Solar Cells Based on Donor-Acceptor Interpenetrating Nano-Interface
- Division of Electrical, Electronic and Information Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan)
Photovoltaic cells with interpenetrating interfaces between a conducting polymer layer and a fullerene layer fabricated by a solvent corrosion method have been investigated. Using a weakly dissoluble combination of a solvent and an underlayer film, we fabricated a ''semi-layered'' structure that was maintaining a bilayer structure and furthermore interpenetrating at the interface of the conducting polymer and the fullerene layers. In these cells, high external quantum efficiencies (EQE) were obtained. The photovoltaic properties have been interpreted by the effective absorption of incident photons around the interface of conducting polymer and fullerene, the interpenetrating fullerene / conducting polymer interface involving the efficient photo-induced charge transfer, and the short distance between the electron-generation region and electrode resulting in the enhancement of the electron collection to the electrode. In these cells, both of the efficient exciton dissociations at the interpenetrating interface and the efficient carrier transports by each continuous pathway for electrons between fullerene molecules and for holes between conducting polymers occur.
- OSTI ID:
- 21511425
- Journal Information:
- AIP Conference Proceedings, Vol. 1325, Issue 1; Conference: 4. Asian physics international symposium, Bandung, West Java (Indonesia), 12-13 Oct 2010; Other Information: DOI: 10.1063/1.3537899; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ABSORPTION
CARRIERS
CHARGE EXCHANGE
CORROSION
DISSOCIATION
ELECTRODES
ELECTRONS
FULLERENES
INTERFACES
LAYERS
MOLECULES
PHOTONS
PHOTOVOLTAIC EFFECT
POLYMERS
QUANTUM EFFICIENCY
SOLAR CELLS
THIN FILMS
BOSONS
CARBON
CHEMICAL REACTIONS
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELEMENTARY PARTICLES
ELEMENTS
EQUIPMENT
FERMIONS
FILMS
LEPTONS
MASSLESS PARTICLES
NONMETALS
PHOTOELECTRIC CELLS
PHOTOELECTRIC EFFECT
PHOTOVOLTAIC CELLS
SOLAR EQUIPMENT
SORPTION