TECHNOLOGY FOCUS - CERAMICS AND GLASS - Preferred Composition: The glass plate comprises a material chosen from low iron glass, borosilicate glass and soda-lime glass. The glass plate further comprises UV absorber. The thickness of the glass plate is 50 mu m-5 mm.    TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The solar panel or solar cell contains at least one device chosen from a silicon-based device, III-V or II-VI PN junction device, a copper-indium-gallium-selenium (CIGS) thin film device, an organic sensitizer device, an organic thin film device and a cadmium sulfide/cadmium telluride (CdS/CdTe) thin film device. The light incident surface of the solar cell, solar panel or photovoltaic device comprises glass or polymer. The adhesive layer is used to adhere the glass plate to the light incident surface of solar cell, solar panel or photovoltaic device.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: At least one chromophore in the primary wavelength conversion layer is an organic dye chosen from perylene dye of formula (VIII) or (IX), benzotriazole dye of formula (I) or (II) and benzothiadiazole dye of formula (VII). The compound (I) is preferably of formula (III) or (V). The compound (II) is preferably of formula (IV) or (VI). The primary wavelength conversion layer further contains sensitizer chosen from nanoparticles, nanometals, nanowires, carbon nanotubes (preferably optionally substituted single-wall carbon nanotubes and optionally substituted multi-wall carbon nanotubes), fullerenes, optionally substituted fullerenes (preferably optionally substituted C60, optionally substituted C70 and optionally substituted C84), optionally substituted phthalocyanines, optionally substituted perylenes, optionally substituted porphyrins and optionally substituted terrylenes, plasticizer chosen from N-alkyl carbazole derivatives and triphenylamine derivatives and UV stabilizer, antioxidant or UV absorber. The fullerene is chosen from methyl (6,6)-phenyl-C61-butyrate, methyl (6,6)-phenyl-C71-butyrate and methyl (6,6)-phenyl-C85-butyrate. The content of sensitizer contained in the primary wavelength conversion layer is 0.01-5 wt.%.i=0-100;A,A1=alkyl, alkyenyl, heteroalkyl, aryl, heteroaryl, amino, amido, cycloamido, cycloimido, alkoxy, carboxy or carbonyl (all optionally substituted);A2=alkylene, alkenylene, arylene or heteroarylene (all optionally substituted), or ketone, ester or group of formula: -Ar'-N(-R1)-C(=O)-R2-C(=O)-N(-R1)-Ar'-;Ar'=aryl or heteroaryl (both optionally substituted);R1=H, alkyl, alkenyl, aryl, heteroaryl, aralkyl or alkaryl;R2=ketone, ester, or alkylene, alkenylene, arylene or heteroarylene (all optionally substituted),;or R1+R2=ring;D1,D2=H, or alkoxy, aryloxy, acyloxy, alkyl, aryl, heteroaryl or amino (all optionally substituted), or amido, cycloamido or cycloimido;L1=alkylene, alkenylene, alkynylene, arylene or heteroarylene (all optionally substituted);R4=-N(-R1)(-C(-R3)(=O)) or optionally substituted cycloimido;R3=alkyl, alkenyl, aryl or heteroaryl (all optionally substituted);or R1+R3=ring;R5=alkoxy, aryloxy or acyloxy (all optionally substituted), or amino;Z,Z'=-O-, -S-, -Se- -Te- -NR6-, -CR6=CR6- or -CR6=N-;R6=H, or 1-6C alkyl or 1-10C aryl (both optionally substituted);j,k=0, 1 or 2;Y1,Y2=aryl, alkyl, cycloalkyl, alkoxy or amino (all optionally substituted);R1,R1'=H, 1-10C alkyl, 3-10C cycloalkyl, 1-10C alkoxy, 6-8C aryl or 6-20C aralkyl;m,n=1-5;andR2,R2'=6-18C aryl or 66-20C aralkyl.D1 and D2 are not both hydrogen.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The polymer matrix is optically transparent, formed from a substance chosen from polyethylene terephthalate, polymethyl methacrylate, polyvinyl butyral, ethylene vinyl acetate, ethylene tetrafluoroethylene, polyimide, amorphous polycarbonate, polystyrene, siloxane sol-gel, polyurethane and polyacrylate, and comprises a polymer chosen from host polymer, copolymer, mixture of host polymer and copolymer, polymers, mixture of polymer and copolymer, and copolymers. The polymer matrix has a refractive index of 1.4-1.7. The content of chromophore contained in the primary wavelength conversion layer is 0.01-3 wt.%, preferably 0.05-2 wt.% and more preferably 0.1-1 wt.%. The primary wavelength conversion layer comprises two or more chromophores, in which at least one chromophore is an up-conversion chromophore or a down-shifting chromophore. The wavelength converting device further comprises a secondary wavelength conversion layer, an adhesive layer containing acrylic, ethylene vinyl acetate, or polyurethane, between the glass plate and the primary wavelength conversion layer, and additional layers chosen from glass sheet, removable liner, edge sealing tape, frame material, polymer material and adhesive layer, and additional polymer layer comprising UV absorber. The secondary wavelength conversion layer comprises at least one chromophore which is same or different from the chromophore contained in primary wavelength conversion layer. The removable liner is attached to the primary wavelength conversion layer and/or glass plate, and comprises a plastic film. The removable liner is chosen from fluoropolymer, polyethylene terephthalate, polyethylene, polypropylene, polyester, polybutene, polybutadiene, polymethylpentene, polyvinyl chloride, vinyl chloride copolymer, polybutalene terepthlalate, polyurethane, ethylene-vinyl acetate, glassine paper, coated paper, laminated paper, cloth, nonwoven fabric sheets and metal foil. The adhesive layer has thickness of 1-100 mu m and refractive index of 1.4-1.7, preferably 1.45-1.55. The thickness of the primary wavelength conversion layer is 10 mu m-2 mm. The thickness of the removable liner is 10-100 mu m. Preferred Process: Alternately, the wavelength converting device is formed by mixing a powdered polymer material and one or more chromophores to form a mixture, heating the mixture using an extruder to form a wavelength conversion layer and applying the wavelength conversion layer to a glass plate directly using a laminator.