{"product_id":"red-phosphors-for-w-led-applications-john-peter-9783668043053","title":"Red phosphors for W-LED applications","description":"Project Report from the year 2015 in the subject Physics - Optics, ST Anne's College Of Engineering And Technology (St. Anne's College of Engineering and Technology, Panruti, Tamilnadu, India), language: English, abstract: Trivalent rare-earth-ion-activated molybdate based phosphors have attracted great attention for solid-state lighting applications by virtue of their long lifetimes, and efficient luminescence property. The rare-earth ions are represented by a partly filled 4f shell that is completely shielded by 5s2 and 5p6 orbitals. Therefore, emission transitions provide sharp intense lines in the optical spectra [1, 2]. The use of rare-earth element-based phosphor, based on ''line-type'' f-f transitions, can narrow the emissions to the visible range, resulting in high efficiency and a high-lumen equivalence. In recent years, a flourishing care is concentrated on Li3Ba2Gd3-x(MoO4)8 host matrix for luminescent ions in the interest of their excellent chemical and thermal stability and favourable luminescence characteristics compared to the sulfide- and nitride-based materials. Moreover, these are environmentally friendly as no toxic gases like sulphide are given out. Li3Ba2Gd3-x(MoO4)8 occur in monoclinic crystal system with space group C2\/c in a disordered structure [3]. For this research paper, a series of Li3Ba2Gd3-xPrx (MoO4)8 (x = 0.01, 0.03, 0.05, 0.07and 0.09 mol) and Li3Ba2Gd3-xSmx (MoO4)8 (x = 0.02, 0.04, 0.06, 0.08 and 0.10 mol) red phosphors were synthesized by conventional solid state reaction method.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e John Peter\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 3668043051\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9783668043053\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Grin Verlag\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 10\/13\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 24\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.10lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.27h x 5.83w x 0.06d","brand":"John Peter","offers":[{"title":"Paperback","offer_id":47965888708863,"sku":"9783668043053","price":36.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_d6f3786a-6320-4b04-8d04-fce612448d0a.jpg?v=1767285544","url":"https:\/\/www.whiterainbookhouse.com\/products\/red-phosphors-for-w-led-applications-john-peter-9783668043053","provider":"WR Book House","version":"1.0","type":"link"}