solar cell – Page 2 – TechConnect Briefs

Enhancement of GaAs solar cell efficiency by type-II GaSb quantum dots located outside of the depletion region

Kechiantz A., Afanasev A., Lazzari J.-L., The George Washington University, US

Experiments have shown that extrinsic intermediate band (IB) states, for instance, formed by artificial quantum dots (QDs), located in the depletion region participate in electron-hole recombination. This facilitates dramatically the dark current and reduces the [...]

High open-circuit voltage bulk-heterojunction solar cells by using new dendritic acceptor material

Alshahrani T., EL-Betany A., Mabrook M., Tai H., McKeown N.B., Bangor University, UK

Light harvesting solar cells and energy transfer are currently of great challenges for the 21st century in the field of solar cells energy. Academic and industrial scientists are searching for a detailed understanding of light [...]

New route for growing of ZnO seed layer using SILAR method

Galego E., Serna M.M., Ramanathan L.V., IPEN-CNEN/SP, BR

In this work a new route was applied, it was utilized successively ionic layer adsorption reaction (SILAR) method to growth of the ZnO seed layer with low mis-orientation.

Surface Passivation of GaAs Nanowires Ensembles for Photovoltaic Applications

Chia A.C.E., LaPierre R.R., McMaster University, CA

Fabrication, electrical characterization and analytical modeling of an AlInP-passivated GaAs NW ensemble is presented. Novel processing steps were used to fabricate NW ensemble devices which were subsequently characterized electrically and fit with an analytical model, [...]

Co-Extrusion Printing for Low Cost and High Performance Energy Devices

Shrader E., Cobb C., PARC, a Xerox company, US

The method of co-extrusion of dissimilar materials has been developed at the PARC, a Xerox Company, to successfully produce high aspect ratio structures for solar cell gridlines. In the solar application, the process is stable [...]

Optimizing Quantum Well Solar Cell Efficiency through Genetic Algorithms

Pacheco M.A., Pontifical Catholic University, Rio de Janeiro, BR

In this work, a study of quantum well solar cells (QWSCs) is carried through. The use of quantum wells was pointed as a tool to increase the efficiency of photovoltaic. The objective is to describe [...]

Co-Extrusion Printing for Low Cost and High Performance Energy Devices

Shrader E., Cobb C., PARC, a Xerox company, US

The method of co-extrusion of dissimilar materials has been developed at the PARC, a Xerox Company, to successfully produce high aspect ratio structures for solar cell gridlines. In the solar application, the process is stable [...]

Optimizing Quantum Well Solar Cell Efficiency through Genetic Algorithms

Pacheco M.A., Pontifical Catholic University, Rio de Janeiro, BR

In this work, a study of quantum well solar cells (QWSCs) is carried through. The use of quantum wells was pointed as a tool to increase the efficiency of photovoltaic. The objective is to describe [...]

Efficiency Enhancement of Dye-Sensitized Nanocrystalline Solar Cells Through Fabrication

Ilumoka A.A., UNIVERSITY OF HARTFORD, US

This paper reports results obtained from the investigation of electrical performance of blueberry-based DSSCs and makes recommendations regarding their fabrication, specifically optimal sintering temperature and optimal sintering time. Electrical characteristics (open circuit voltage, short circuit [...]

Experimental study of solar spectrum impact on solar cells

Song X., Miller E.L., Garmire D., University of Hawaii at Manoa, US

Variations in solar spectrum can lead to changes in the performance and efficiency of solar cells, which operate at peak efficiency only over a relatively narrow band of the spectrum. Similarly heat absorbed by solar [...]