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- How Build Solr Cell ea sis come eng Sol Ideas Technology Development How to Build Your Own Solar Cell English Version *Cyclee af energy and matoriale me, have existed on the Earth for Pat <, bifions of years. Ina few % hundred years, we have come to dominate and control many of these cycles. Our search for artificial photosynthesis is, ReCrasting Paatonyrthorio: therefore, not merely to present ourselves with alternatives for powering our society, but itis a search for our piace in the Earth’s biosphere." -Dr, Greg Smestad (Inventor of the kit) A, ‘Step 1 - Staln the Titanium Lo Dioxide with the Natural Dye: Stain the white side of a titanium a Cant dioxide (TiO) coated glass plate. heey * } This glass has been previously \ . / coated with a traneparent, _- conductive layer (SnO,), 28 well ae a porous TIO, film. Crush fresh (ar frozen) blackberries, raspberries, pomegranate seeds, or red Hibiscus tea in a tablespoon of water. Soak the firm ‘for 5 minutes in this quid to stain the fm to a deep red-purple color. If both sides of the firm are not uniformly stained, then put it back in the juice for 5 more minutes, Wash the fim in ethanol and gently blot it dry with a tissue, ee sie onsen Step 2 - Coat the Counter % Electrode: The solar cell needs 7 both a positive and a negative plate on ‘te function. The positive electrode és Called the counter electrode and ie created from a "conductive" SnO,coated glass plate. A Volt - Ohm meter can be used to chack which side of the glass is conductive. When scratched with a finger ra, it is the rough side. The “non-conductive side is marked with @ "4." Use a pencil lad to apply a thin graphite (catalytic carbon) layer ta the conductive side of plates surface. “x. Steps 3 & 4 - Add the Electrolyte > Blinc mae eceovee + Gell: The lodide solution serves as ee the electrolyte in the sofar call t ry completa the circuit and regenerate “the dye. Place the stained plate on the table so that the flm site is up and place one oF two drops of tha iodideviodine elactrolyts solution on the ‘stained portion of the fim. Then place the counter electrode an top of the stained film so that the conductive ‘side of the counter electrode is on tog of the film, Offset the glass plates so that the edges of each plate are exposed. These will serve as the contact points for the Negative and positive electrodes so that you can extract electricity and test your cell Use the two clips to hold the two electrodes together at the comer of the plates. 4 The output ie approximately 0.43 V and 1 méom? when the cell is illuminated in full sun through the TiG, side. Motor, Petri dish, Tweezers, Pipette, Alligator Clips and Wires ordered separately. How te Order tha Commercial Solar Cell Kit Commercial Sotar Cok Kit Components Lab set-up for the Procedure | Sol Ideas Technology Development P.0, Box 51038 Pacific Grove, California 83950, USA. | Tek +1 (445) 979-8750 E-mail: [email protected] Bromber-solcelle Af Kéve Albrechtsen, OVE og Sholemes EnergiPorun [hergien fra solens Iys kan bruges tat lave sttem, De indus solelt fremstillode suleelle ex dag sladiy s& dyre, at de hat ssvert vei at sl8 igennem i elprodukcionen. Der forskes i for- scellige reknizker cl feemsiling af soleelier, Hier er et eksempel pf en solcellemodel, man selv kan lave. Modellen er Gil unecvisningstonal, da den ikke er stabil UV lysog derfor kun holder ca, 15 minutter ialmindelig soy, Fysiklavere maf. vl mske have de nadverdige ele tl barr-solcellen, eller kan de besilles via intemetadressen nederst Speciolle materialer + To tindioxid-coatede glasplader (feks: 25 x25 om) #6 gram TiOs (titaniwn-dioxid) Frisk hromabae (hrombaer skulle viene bedst) «+ Todiebaplesning, Fremgangsmide ‘+ Oplas T:Osi vane ag sear en drip den ene glasplads ‘+ Plas luftiares, og bages dovefier ved 459°C 30 min + De ftiske bromber knuses og smores pi det vide TiOrlag, hvorefter pladen skal Lulttrre i | min, rembereme skyllesaf med vand og pladen legge lil ane © PSdet andetstykke glas pifvren grafit me¢ en Blyaat + Glasplademe legges med graflt- og brombser-sideme ‘nod hinanden, © Mens pladere holdes tt sammen tlsztes en iodld-op- lsning, der trenyer ind vba, kepillerkreefter + Nu kan der miles pa solceltens Fotosyntese Solcelien virker ved at udayt- te folosynlesen. Solens lys rammer elektryger i brom- barrsaften, de: frigates og laber via titaniumn-dioxidlaget til den ene glasplade. Blektro~ nerne fia brombarsaften bli- ver exstattet af elektvoner fra iodid-oplasningen og henter nye elektroner fra graftsiden Derved laber der stram mel- a tem de to glasplader Leos mere eller kob. Brer-solcellen er opfundet af “Swiss Federal Institute of Technology’ i Lausanne, Schweiz, En grundig vejlednicg pa flere sprog kan findes pi ip:.1cw veo ieas.comPuligelell ‘a hl, Sete kan bestilles win Lupstics lexi pns 545+ 108i esp.) ns ogsd under Solceller ph werw at dl/videnomfarkiv hte.