Hybrid polymer-CdSe solar cells with a ZnO nanoparticle buffer layer for improved efficiency and lifetime
- Authors
-
- Qian, Lei
- Yang, Jihua
- Zhou, Renjia
- Tang, Aiwei
- Zheng, Ying
- Tseng, Teng-Kuan
- Bera, Debasis
- Xue, Jiangeng
- Holloway, Paul. H.
- Xue, J.([email protected])
- Publication Date
- Jan 01, 2011
- Source
- Knowledge Repository of SEMI,CAS
- Keywords
-
- Buffer Layers
- Cadmium Alloys
- Cadmium Compounds
- Conversion Efficiency
- Open Circuit Voltage
- Optical Waveguides
- Solar Cells
- Zinc Oxide
- 半导体材料
- Buffer Layers
- Cadmium Alloys
- Cadmium Compounds
- Food Conversion
- Open Circuit Voltage
- Optical Wave Guides
- Solar Cells
- Solar Generators
- Zinc Oxide
- Cadmiumverbindungen
- Composes Du Cadmium
- Assimilation (Food)
- Conversion Efficiency
- Food Conversion Rate
- Optical Waveguides
- Optical Couplers
- Optical Connectors
- Uhf Couplers
- Ultra-High-Frequency Couplers
- Waveguide Couplers
- Couplers (Waveguide)
- Junctions, Waveguide
- Waveguide Connectors
- Waveguide Joints
- Cells, Solar
- Photovoltaic Solar Cells
- Schottky Barrier Solar Cells
- Solar Batteries
- Elements Electriques De Collecteurs D Energie Solai
- Photovoltaic Cells
- Photovoltaics
- Sonnenenergiezellen
- Silicon Solar Cells
- Wraparound Contact Solar Cells
- Solar Converters
- Solar Power Generation
- Solar Power Sources
- Thermophotovoltaic Cells
- Tpv Cells
- 锌白
- Chinese White
- Zinc White
- Oxyde De Zinc
- Zinkoxid
- License
- Unknown
- External links
Abstract
We report the use of a solution-processed ZnO nanoparticle buffer layer in hybrid solar cells based on blends of poly(3-hexylthiophene)(P3HT) and CdSe quantum dots. Depending on the size of the CdSe nanocrystal, these devices exhibit20-70% higher photocurrent output than similar devices without the ZnO nanoparticle layer, which is attributed to a combination of electronic and optical effects. With negligible change in open-circuit voltage and a small increase in the fill factor, the power conversion efficiency of these P3HT:CdSe hybrid solar cells was increased by30-80% with incorporation of the ZnO nanoparticle layer. The presence of the ZnO nanoparticle layer also drastically improves the stability of these hybrid solar cells. Less than40% loss in efficiency was observed for such devices after70 days of exposure to the laboratory ambient without any type of encapsulation.? The Royal Society of Chemistry2011.
