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Solar cell based on PEO, inorganic cations and ionic liquids

By S. Jamikorn, M. Arunchaiya, D. Friedrich and T Dittrich


Quasi solid state dye sensitized solar cells DSSCs based on polyethylene oxide PEO , I2 and inorganic iodides LiI, KI, NaI, NH4I and or ionic liquids [DMIm]I, [EMIm]I, [MPIm]I, [HMIm]I were prepared and investigated at AM1 5 10 and AM1 5 illumination conditions. Results revealed highest energy conversion efficiencies for the PEO I2 LiI [EMIm]I 60 wt quasi solid state electrolyte of 5 9 and 3 6 at AM1 5 10 and AM1 5, respectively. Moreover, it was shown within fluctuations of the solar cells performance that the short circuit current density ISC decreased with increasing open circuit voltage VOC for electrolytes with inorganic cations; however, in the case of the solar cells prepared with ionic liquids, the ISC increased with increasing VOC. Limiting factors and reasons for fluctuations in the performance of quasi solid state DSSCs are discusse

Topics: Renewable energies
Year: 2012
OAI identifier: oai:helmholtz.HZB:70592
Provided by: HZB Repository
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