Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/836
Title: Formation and impact of hot spots on the performance of organic photovoltaic cells
Authors: Steim, Roland 
Choulis, Stelios A. 
Schilinsky, Pavel 
Lemmer, Uli 
Brabec, Christoph J. 
Major Field of Science: Natural Sciences
Field Category: Physical Sciences
Keywords: Current density;Failure analysis;Leakage currents;Organic compounds;Photovoltaic cells;Solar cells
Issue Date: 26-Jan-2009
Source: Applied Physics Letters, 2009, vol. 94, no. 4, pp. 043304-1- 043304-3
Volume: 94
Issue: 4
Start page: 043304-1
End page: 043304-3
Journal: Applied Physics Letters 
Abstract: The failure mechanisms of organic solar cells under reverse bias conditions were investigated. Localized inhomogenities, so-called “hot spots,” leading to increased leakage currents under reverse bias, were identified as the dominant origin for failure. The intensity of hot spots does increase with the duration under reverse bias voltage. Cells with a higher leakage current density (i.e., >100 µA/cm−2 at −1 V) have a significant higher probability for dominant failure, while devices with low leakage current densities show less degradation under reverse bias stressing.
URI: http://ktisis.cut.ac.cy/handle/10488/836
ISSN: 1077-3118
DOI: 10.1063/1.3073857
Rights: © American Institute of Physics
Type: Article
Affiliation : Universität Karlsruhe 
Cyprus University of Technology 
Appears in Collections:Άρθρα/Articles

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