Two-dimensional simulations of CuPc-PCTDA solar cells: The importance of mobility and molecular pi stacking

Article Abstract:

A two-dimensional microkinetical model for photovoltaic (PV) effect of molecular-based solar cells is extended to include electron-hole recombination and simulations of the short circuit current for simple copper phthalocyanine (CuPc) and 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA). The simulations show that short circuit current might qualitatively be rationalized within a simple kinetic picture of an optically pumped electron-hole pair generation step at the CuPc-PTCDA interface and subsequent transport in the CuPc and PTCDA domain.

Electric properties, Carboxylic acids, Copper compounds

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Improved performance in dye-sensitized solar cells employing TiO(sub 2) photoelectrodes coated with metal hydroxides

Article Abstract:

The performance of dye-sensitized solar cells (DSCs) was compared before and after processing the TiO(sub 2) electrodes by electrochemical reactions with metal nitrates (such as Mg, Zn, Al, La) in 2-propanol. An overcoating of magnesium hydroxide was found to give the largest improvement in photovoltage, fill factor and conversion efficiency as well as electron lifetime of DSCs.

Titanium dioxide, Hydroxides, Chemical properties

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Multiple band gap semiconductor/electrolyte solar energy conversion

Article Abstract:

A study is conducted to explore the fundamental and experimental multiple band gap semiconductor/electrolyte processes to convert optical energy and utilize renewable solar energy. Further the uses of multiple band gap semiconductor/electrolyte systems are presented.

Research and Development in the Physical, Engineering, and Life Sciences, Regulation and Administration of Communications, Electric, Gas, and Other Utilities, Solar Energy R&D, Energy R&D Programs-Solar, Photons, Optical properties, Solar energy research

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