Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Semiconductor nanocrystals have been attracting considerable attention due to their band gap tenability and inherently high extinction coefficient, making them very promising candidates for efficient light harvesting materials in solar cells1-2. Also over the past decades phthalocyanines (Pc’s) have also been a subject of numerous papers because of their unique spectroscopic, photoelectric and magnetic properties3. In our present investigation we have characterized hybrid donor-acceptor system based on quntum dot-chromophores as potential light harvesting materials in solar cell. This work focus attention on spectroscopic characterization of electronic-vibrational behavior of “core/shell” quantum dot (CdTeSe/ZnS) with phthalocyanines with different peripheral groups or ions. To determine the influence of the substituents attached to the macroring and the presence of the quantum dot on dye we have done spectroscopic measurements of absorption, fluorescence and electron spin resonance (EPR) spectra. Based on performed measurements for samples dissolved at toluene the value of energy transfer yield and value of creating radicals was estimated.
Acknowledgements:
This work was financially supported by National Science Center grant no. 2011/03/N/ST4/02957
[1]Sambur, J.B.;Novel, T.;Parkinson, B.A.; Science, 2010, 330, 63-66 [2]Vogel, R.;Hoyer, P.;Weller, H.; J. Phys. Chem., 1994, 98, 3183-3188 [3] McKeown, N.B.; Pthalocyanine Materials, Synthesis, Structure and Function, Cambrige University Press, Cambridge, 1998
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