Solar Power Technologies & Materials

Electrowetting-driven Solar Trackers for concentrated photovoltaic (CPV) rooftop applications

Park S.Y., Kuo J., Gould K., Teledyne Scientific & Imaging, US

Concentrated photovoltaic (CPV) technologies, which use additional optics (lenses or mirrors) to concentrate a large amount of sunlight onto a small area of the cells, can reduce the cost of PV systems. One of the [...]

Quantum Dot Enhanced Rugate Filtering and Light Trapping

Shepard S., Copeland J., Louisiana Tech University, US

Rugate filters use an exponential sinusoidal index profile, which is also multiplied by a window function to further reduce side lobes in comparison to other (discrete index) interference filters. These also have negligible harmonics and [...]

Improvement of Silicon Solar Cell Metallization with Printed Metal Nanoparticle Inks

Xu B., Limb S., Rodkin A., Shrader E., Garner S., PARC, a Xerox company, US

The process and quality of metallization greatly affects the performance and cost of solar cells. Screen printing of silver paste and fire-through of the silicon nitride antireflection layer is the most widely used method for [...]

Characterization of Solar Grade Silicon Contaminants

Mount G.R., Wang L., Putyera K., Lepage M., Evans Analytical Group, US

The term ‘Solar Grade Silicon (SoG)’ has been used for many years but until recently, there were no specifications as to what this actually meant. Without specifications, suppliers of silicon have been using ‘number of [...]

Micro-CSP Grid Integration

Kimura D.T., Sopogy, US

Sopogy’s MicroCSP power generation systems provide stable electricity for the grid. Instead of using batteries or grid consumption as back-up, MicroCSP relies on low cost thermal storage. Sopogy’s micro-concentrated solar power technology, MicroCSP, launched in [...]

Copper nanowires on Recycled Conducting Glass for DSSC Electrodes

Liao C-Y, National Cheng Kung University, TW

A simple method for recovery of ITO glass from thin film transistor liquid crystal display (TFT-LCD) wastes for dye-sensitized solar cell (DSSC) electrodes has been developed. The ITO glass separated from the color filter and [...]

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 [...]

Enhancement of photoelectrochemical and optical characteristics using a TiO2 nanoparticles interlayer in MEH-PPV heterojunction devices

Habelhames F., Girtan M., Manole A., Lamiri L., Zerguine W., Nessark B., Univesité Ferhat Abbas, DZ

In this work, MEH-PPV+TiO2 composite material was prepared by incorporation of titanium oxide nonoparticles (TiO2) into poly[2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) polymer matrix and deposited by spin coating on glass and indium thin oxide (ITO) substrates. The absorbance [...]

Thermal Stability of Nano-Structured Selective Emitters for Thermo Photovoltaic

Lee H.J., Bathurst S.P., Kim S-G, Massachusetts Institute of Technology, US

This study aims to provide the high temperature stability of tungsten selective emitters for thermophotovoltaic (TPV) systems. Photonic crystals have periodic nano-structures that are designed to control the motion of photons at certain wavelengths, giving [...]

The role of cetyltrimethylammonium bromide in efficiency of organic-quantum dot hybrid solar cell

Heo S.J., Yoon S., Oh S.H., Kim H.-J., Yonsei University, KR

We fabricated high efficiency organic-quantum dot hybrid solar cells. By employing the hybrid active layer, which absorbed the light in wide range, the short circuit current (Jsc) is increased due to a multiple exciton generation [...]

Ultrasonic Spraying of Carbon Nanotubes using NMP

Willey A., Davis R., Vanfleet R., Brigham Young University, US

We will present a new method for spraying thin films of carbon nanotubes, in which they are suspended in an organic solvent and then sprayed ultrasonically onto a heated substrate. These thin films have applications [...]

The identification of recombination centers in organic solar cells

Street R.A., Krakaris A., PARC, a Xerox company, US

To achieve high efficiency bulk heterojunction organic solar cells, it is necessary to identify and minimize the recombination centers that limit the performance. There is growing evidence that the dominant recombination is through trap states [...]

Ionic Liquids as Heat Transfer Medium

Schubert T.J.S., Sahin H., Beyersdorff T., Iolitec - Ionic Liquids Technologies GmbH, DE

Based on our investigations we will report an overview about thermally stable ILs. By pre-selecting a comprehensive matrix of different anions and cations from our substance library of more than 600 compounds, using known physical [...]

A Study of Solar Radiation, Storage and Applications in Nigeria

Odia O.O., Ambrose Alli University, Ekpoma, Edo State, NG

The paper investigates the availability of solar energy in Auchi, a town in Nigeria located between longitude 6o15' East of the GM line and latitude 7o02' North of the Equator using photovoltaic solar cells and [...]

Reclaimed Laminate Waste as Novel, Heat Transfer Enhancing, Encapsulation for Long-term PCM Heat Storage

Desgrosseilliers L., Groulx D., White M.A., Dalhousie University, CA

The research has explored a use for Tetra pack waste, while addressing an energy storage need. One class of phase change materials (PCMs) for low temperature heat storage, called supercooled salt hydrates, produces a room [...]

Sopogy’s MicroCSP

Kimura D.T., Sopogy, US

Sopogy’s micro-concentrated solar power technology, MicroCSP, launched in 2006 is now generating electricity, hot water and air conditioning at demonstration sites around the world. Sopogy’s MicroCSP is SRCC certified and ready for commercialization.

Papers: