Title :
Solution-processed electrodes for efficient hybrid copper indium gallium diselenide thin film solar cells
Author :
Reinhard, Manuel ; Eckstein, Ralph ; Sonntag, Paul ; Burkert, Linda ; Dimmler, Bernhard ; Lemmer, Uli ; Colsmann, Alexander
Author_Institution :
Light Technol. Inst., Karlsruhe Inst. of Technol., Karlsruhe, Germany
Abstract :
We present copper indium gallium diselenide (CIGS) solar cells incorporating solution-deposited transparent top cathodes. The utilized highly conductive polymer blend and the silver nanowire mesh exhibit excellent transparency in the near-UV region and form pinhole-free, homogeneous layers atop the rough, polycrystalline CIGS absorber as confirmed by means of scanning electron microscopy. We fabricated solar cells with power conversion efficiencies approaching 9% and enhanced open-circuit voltages.
Keywords :
copper compounds; electrochemical electrodes; electrodes; gallium compounds; indium compounds; nanowires; polymer blends; silver; solar cells; Ag; conductive polymer blend; hybrid copper indium gallium diselenide thin film solar cells; nanowire; open-circuit voltages; polycrystalline absorber; power conversion; scanning electron microscopy; solution-deposited transparent top cathodes; solution-processed electrodes; Electrodes; Photovoltaic cells; Photovoltaic systems; Scanning electron microscopy; Silver; Zinc oxide; CIGS; hybrid solar cell; silver nanowires; transparent electrode;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th
Conference_Location :
Tampa, FL
DOI :
10.1109/PVSC.2013.6745139
