Successfully reported this slideshow.

Solarcells

1,042 views

Published on

Solar cells and nanosolar cells comparison

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Solarcells

  1. 1. Photovoltaic Solar CellsSources:http://www.irishsilicon.com/solar_powered_house_small.jpghttp://ideastoenlighten.files.wordpress.com/2010/02/solar-lamp1.jpghttp://web.tradekorea.com/upload_file/prod/emp/200905/oimg_GC03547342_CA03547399.jpghttp://inhabitat.com/files/blue-car-ed01.jpghttp://www.greatgreengadgets.com/gadgets/wp-content/uploads/2008/06/SUNWHISPERmow.jpghttp://www.talk2myshirt.com/blog/image-upload/DIY_Solarbag/make_your_own_solarbag.JPGhttp://www.infoniac.com/uimg/solar-powered-camcorder-infoniac.jpg
  2. 2. Solar Energy CLEAN & RENEWABLE ENERGY PRODUCED BY THE SUNSources:http://www.thefuture-energy.com/EnergyResource.gif
  3. 3. How Solar Electricity WorksSources:http://homessolarpower.alancho2310.com/images/HomesSolarPower4.jpg
  4. 4. Solar Cells ELECTRICAL DEVICES THAT CONVERT THE ENERGY OF LIGHT DIRECTLY INTO ELECTRICITYSources:http://www.pvsolarchina.com/wp-content/uploads/2010/12/Solar-cell-type.jpghttp://www.pipkinelectric.com/picts/pv_solar_module_efficiency_chart.jpghttp://www.applied-solar.info/wp-content/uploads/2009/09/various_types_of_solar_cells.jpg
  5. 5. Silicon-based Solar Cells Light with This separation Energy is given The energy energy greater A positive “hole” of electrons and to an electron in excites the than the band is left in the holes creates a the crystal electron; it is gap energy of Si electron’s place voltage and a lattice free to move is absorbed currentSources:http://nanosense.org/activities/cleanenergy/solarcellanimation.htmlhttp://www.nanosense.org/activities/cleanenergy/solarenergy/CE_SolarSlides.ppthttp://www.reuk.co.uk/OtherImages/solar-cell-in-panel-kit.jpg
  6. 6. Dye-sensitized Solar Cells Excited electrons Light with high infuse into Separation of Positive “holes” enough energy semiconducting excited electrons left in dye excites electrons TiO2, and are and “holes” molecules in dye molecules transported out creates a voltage of cellSources:http://nanosense.org/activities/cleanenergy/solarcellanimation.htmlhttp://www.nanosense.org/activities/cleanenergy/solarenergy/CE_SolarSlides.ppthttp://www.azooptics.com/images/news/NewsImage_2835.jpg
  7. 7. Solar Cells Comparison SILICON-BASED SOLAR CELLS DYE-SENSITIZED SOLAR CELLS • Higher efficiency • Lower efficiency • Longer life • Shorter life • Expensive • Relatively inexpensive – Made in high vacuum at high heat – Made in non-vacuum setting – High manufacturing costs mainly at room temperature • Need TLC – Relatively simple manufacturing process – Fragile, rigid, thick • Need little TLC • Long return on investment – Thin, lightweight, flexible – Takes 4 years to produce energy savings equivalent to cost of • Short return on investment production – Takes approx 3 months to produce energy savings equivalent to cost of productionSources:http://www.nanosense.org/activities/cleanenergy/solarenergy/CE_SolarSlides.ppthttp://www.nano.fraunhofer.de/english/images/ise_z_module_small.jpghttp://static.howstuffworks.com/gif/solar-powered-backpack-2.jpg
  8. 8. Solar NANO Challenges Organic and Hybrid Cells Nanocrystalline TiO2 Film (DSSC) Quantum Dot Solar Cells Nanowire Solar CellsSources:http://blog.cafefoundation.org/wp-content/uploads/2010/08/caltech-outdoor-carpet-solar-cell.bmphttp://blog.cafefoundation.org/wp-content/uploads/2010/08/U-of-Illinois-stamped-solar-cell1.bmphttp://www.briansager.com/images/Nanosolar_sm.jpghttp://www.docstoc.com/docs/45770668/Nano--Solar-cells-Solar-Cells-of-Nano-Solar-cells-Solar-Cells-ofhttp://www.rsc.org/images/imahori-375-FOR-TRIDION_tcm18-125827.jpghttp://www.ecf.utoronto.ca/~luzheng/images/research/organic_solar_cell.jpghttp://zoo.kaist.ac.kr/images/menu3/m3_img3_03.jpg
  9. 9. Solar Future? The Sun is a singular Enormous gap between Interdisciplinary solution to our future our tiny use of solar research is required: energy needs: energy and its immense - physics, chemistry, biology, mate -capacity dwarfs fossil, nuclear, potential: rials, nanoscience wind . . . -incremental advances in today’s -sunlight delivers more energy in technology will not bridge the gap one hour than the earth uses in -conceptual breakthroughs are one year needed that come only from high -free of greenhouse gases and risk-high payoff basic research pollutants -secure from geo-political constraints „SOLAR ENERGY IS INTERDISCIPLINARY NANOSCIENCE“Sources:http://cnst.rice.edu/uploadedFiles/Resources/Presentations/671%20ACC%20070807.pdfhttp://www.solarpanels365.com/uploaded_images/how-much-do-solar-panels-cost-776558.jpg

×