TESTING OF DYE-SENSITIZED TIO2 SOLAR-CELLS .2. THEORETICAL VOLTAGE OUTPUT AND PHOTOLUMINESCENCE EFFICIENCIES

Detailed balance calculations have been applied to dye sensitized TiO2 solar cells in order to obtain an upper limit for the solar conversio n efficiency of the finished cell given the particular optical absorpt ion and the luminescence efficiency, or fluorescence yield, of the dye . While these models do not predict the actual efficiency of the devic e they may serve as a guide for the reporting of actual open-circuit v oltages and solar conversion efficiencies. The results of the analysis indicate that cells of at least 10% conversion efficiency with voltag es of over 1 V are possible with Ru trinuclear complexes at AM 1.5.