{"id":12953,"key":"Crystal","title":"Crystal","latest":{"id":1204705,"timestamp":"2025-11-27T14:15:08Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[gallium arsenide solar cells]]\n\n== External links ==\n\n* [[Wikipedia:Crystal]]\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:Energy]]\n[[Category:Electricity]]\n[[Category:nanotechnology]]"}