Essays about: "solljusexponering"

Found 2 essays containing the word solljusexponering.

1. 1. A photodegradation study of conjugated polymers for organic solar cells by absorption spectroscopy and atomic force microscopy

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Author : Johansson André; [2021]
   Keywords : OSC; solar cells; active layer; polymer; degradation;

   Abstract : The effect of light exposure in ambient air on thin films made from an electron acceptor polymer poly{[N,N'-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (N2200), an electron donor polymer Poly[[2,3-bis(3-octyloxyphenyl)-5,8-quinoxalinediyl]-2,5-thiophenediyl] (TQ1) and their blends, has been studied using UV-vis spectroscopy and Atomic Force Microscopy (AFM). For solutions of TQ1, N2200 and blends, the linearity of the Beer-Lambert law for absorption spectroscopy has been verified. READ MORE

3. 2. Chemical Bleaching of Wood and Its Aging : An Investigation of Mahogany, Walnut, Rosewood, Padauk and Purpleheart

   University essay from Carl Malmsten - furniture studies; Tekniska högskolan

   Author : Louise Kristiansson; [2012]
   Keywords : chemical bleaching; wood; veneer; furniture restoration; furniture conservation; walnut; rosewood; purpleheart; mahogany; padauk; blue wool scale; sun light exposure; wood ageing; wood color; kemisk blekning; trä; faner; komplettering; retuschera; möbelrestaurering; möbelkonservering; mahogny; valnöt; jakaranda; padouk; amarant; blåullskala; solblekning; solljusexponering; färg i trä; åldrande av trä;

   Abstract : This paper investigates chemical bleaching of wood and its ageing to make specie specific recommendations on which bleaching solutions to use when color adjusting veneer for furniture restoration.  In more detail, chemical bleaching of European walnut (Juglans regia), Rio rosewood (Dalbergia nigra), purpleheart (Peltogyne spp. READ MORE