Enhanced optical field intensity distribution in organic photovoltaic devices using external coatings
- 4 December 2006
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 89 (23) , 233502
- https://doi.org/10.1063/1.2399937
Abstract
An external dielectric coating is shown to enhance energy conversion in an organic photovoltaic cell with metal anode and cathode by increasing the optical field intensity in the organic layers. Improved light incoupling in the device is modeled using transfer matrix simulations and is confirmed by in situ measurement of the photocurrent during growth of the coating. The optical field intensity in optimized cell geometries is predicted to exceed that in analogous devices using indium tin oxide, both cell types having equivalent anode sheet resistance, suggesting a broader range of compatible substrates (e.g., metal foils) and device processing techniques.Keywords
This publication has 21 references indexed in Scilit:
- New Architecture for High‐Efficiency Polymer Photovoltaic Cells Using Solution‐Based Titanium Oxide as an Optical SpacerAdvanced Materials, 2006
- Efficient Organic Heterojunction Photovoltaic Cells Based on Triplet MaterialsAdvanced Materials, 2005
- The Limits to Organic Photovoltaic Cell EfficiencyMRS Bulletin, 2005
- Long-range absorption enhancement in organic tandem thin-film solar cells containing silver nanoclustersJournal of Applied Physics, 2004
- Influence of the electron mean free path on the resistivity of thin metal filmsMicroelectronic Engineering, 2004
- Organic solar cells: An overviewJournal of Materials Research, 2004
- The Photocurrent of Dye-Sensitized Solar Cells Enhanced by the Surface Plasmon ResonanceJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2004
- Efficient bulk heterojunction photovoltaic cells using small-molecular-weight organic thin filmsNature, 2003
- Efficient photon harvesting at high optical intensities in ultrathin organic double-heterostructure photovoltaic diodesApplied Physics Letters, 2000
- Bimolecular reactions of singlet excitons in tris(8-hydroxyquinoline) aluminumApplied Physics Letters, 1996