Hybrid solar cells based on porous Si and copper phthalocyanine derivatives

Levitsky, I. A.; Euler, W. B.; Tokranova, N.; Xu, B.; Castracane, J.
December 2004
Applied Physics Letters;12/20/2004, Vol. 85 Issue 25, p6245
Academic Journal
We demonstrate a solar cell based on n-type nanoporous Si (PSi) filled with copper phthalocyanine (CuPC) and its derivatives (including a discotic liquid crystal form). The CuPC device shows conversion efficiency up to 2% under white light illumination (20–30 mW/cm2), distinct from cells filled with CuPC derivatives with alkyl chains attached to the core. It is concluded that a critical issue for efficient photocarrier generation is the distance between the CuPC core and the PSi surface. Both organic and inorganic components contribute to photoinduced charge transfer and transport processes. The influence of the PSi structure and pore filling on the solar cell performance is discussed.


Related Articles

  • INNOVATIVE PHOTO-ELECTROCHEMICAL POROUS SILICON TECHNOLOGY FOR SOLAR CELL APPLICATION. Shatkovskis, Eugenijus; Mitkevičius, Ramūnas; Zagadskij, Viktor; Stupakova, Jolanta // International Conference: Radiation Interaction with Material & ;2012, p169 

    The unique so-called porous silicon technology feature have been applied at first to modify of the silicon solar cells to increase its efficiency, while creating a buried structure in the solar cell emitter volume. It was shown that the proposed modification technique improving the...

  • Interaction between process technology and material quality during the processing of multicrystalline silicon solar cells. Borchert, Dietmar; Rinio, Markus // Journal of Materials Science: Materials in Electronics;Jan2009 Supplement 1, Vol. 20, p487 

    Multicrystalline silicon is the most used material for the production of silicon solar cells. The quality of the as grown material depends on the quality of the feedstock and the crystallization process. Bulk impurities, crystal defects like dislocations and of course the grain boundaries...

  • Piezo-effect and physics of CdS-based thin-film photovoltaics. Shvydka, Diana; Drayton, J.; Compaan, A. D.; Karpov, V. G. // Applied Physics Letters;9/19/2005, Vol. 87 Issue 12, p123505 

    We report a strong reversible piezo-effect in CdTe/CdS photovoltaics consistent with the piezo parameters of CdS. Our finding suggests a different understanding of CdS-based solar cells including CdTe- and CuIn(Ga)Se-based devices. Because the CdS film is put into compression in the device, the...

  • Dependence of radiative lifetimes of porous silicon on excitation wavelength and intensity. Moyer, Patrick J.; Pridmore, Andy; Martin, Timothy; Schmidt, Jan; Hasche, Tom; Eng, Lukas; Gole, James L. // Applied Physics Letters;5/8/2000, Vol. 76 Issue 19 

    Excited state radiative lifetime measurements are made on porous silicon as a function of excitation wavelength and excitation intensity. The results indicate that a simple quantum confinement model for the light absorption and emission mechanism is not suitable. We support our results by...

  • In situ energy dispersive x-ray reflectometry measurements on organic solar cells upon working. Paci, B.; Generosi, A.; Albertini, V. Rossi; Perfetti, P.; de Bettignies, R.; Firon, M.; Leroy, J.; Sentein, C. // Applied Physics Letters;11/7/2005, Vol. 87 Issue 19, p194110 

    The change in the morphology of plastic solar cells was studied by means of time-resolved energy dispersive x-ray reflectivity (XRR). This unconventional application of the XRR technique allowed the follow up of in situ morphological evolution of an organic photovoltaic device upon working. The...

  • Photodegradation of porous silicon induced by photogenerated singlet oxygen molecules. Kovalev, D.; Gross, E.; Diener, J.; Timoshenko, V. Yu.; Fujii, M. // Applied Physics Letters;10/18/2004, Vol. 85 Issue 16, p3590 

    We report on the mechanism of photodegradation of porous silicon luminescence in ambient containing molecular oxygen. Energy transfer from excitons confined in silicon nanocrystallites to molecular oxygen results in the generation of highly chemically reactive singlet oxygen molecules. The...

  • Quenching of porous silicon photoluminescence by molecular oxygen and dependence of this phenomenon on storing media and method of preparation of pSi photosensitizer. Balaguer, María; Matveeva, Eugenia // Journal of Nanoparticle Research;Oct2010, Vol. 12 Issue 8, p2907 

    The quenching of porous silicon photoluminescence (pSi PL) by molecular oxygen has been studied in different storing media in an attempt to clarify the mechanism of the energy transfer from the silicon photosensitizer to the oxygen acceptor. Luminescent materials have been prepared by two...

  • The fractal nature of the surfaces of porous silicas as revealed in electronic energy transfer between adsorbates: Comparison of three donor/acceptor pairs. Pines, Dina; Huppert, Dan; Avnir, David // Journal of Chemical Physics;7/15/1988, Vol. 89 Issue 2, p1177 

    Electronic energy transfer between adsorbed rhodamine 6G (R6G, donor) and malachite green (MG, acceptor) was studied on nonporous silica, on silica with average pore diameter of 60 Å (Si–60), on Si-100 and on Si-200. The decay profiles obey the Klafter–Blumen equation for the...

  • Silicon cells: Catching rays. Taira, Kenichi; Nakata, Josuke // Nature Photonics;Sep2010, Vol. 4 Issue 9, p602 

    The article offers information on sphelar solar-cell technology. The sphelar technology developed by Kyosemi corp. generates power by using an assembly of tiny spheres of silicon and maximizes the effective use of silicon in the solar-cell manufacturing process. The reasons that make sphelar...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics