Photo-induced interfacial charge recombination in double heterojunction solar cells
Emilio Palomares a b
Invited Speaker, Emilio Palomares, presentation 068
Publication date: 1st July 2014

In one hand, in my lecture, I will present our latest results on the use of Transient Photovoltage (TPV) and Laser Transient Absorption Spectroscopy ( L-TAS) measurements to study  the  interfacial recombination charge transfer reactions occuring in double heterojunction solar cells under working conditions when using as hole transport material spiro-OMETAD and other semiconductor polymers. The implications of HOMO ( Highest Occupied Molecular Orbital) energy levels, in the semiconductor materials used as hole conductors, charge regeneration and charge recombination will be also discussed. Moreover, we will discuss the use of the Time Correlated Single Photon Counting (TCSPC) technique to adress the efficiency of inorganic/organic solar cells. Last but not least, results on the the use of novel hole transport materials for MAPbI3-xClx for efficient solar cells with the structure FTO/dTiO2/mTiO2/HTM/Metal.

On the other hand, I will show results of efficient small molecule based orgnaic solar cells ( smOSC) with efficiencies close to 7% and how photo-induced techniques such as Charge Extraction ( CE), TPV, and Transient Photo-Current ( TPC), which have been widely used to study Dye Sensitized Solar Cells, can also be used to study smOSC.



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