TECHNOLOGY FOCUS - CERAMICS AND GLASS - Preferred Composition: The glass frit comprises 5-30 wt.% silica, 50-90 wt.% lead oxide, 0.1-10 wt.% alumina, 0.1-10 wt.% zirconia, 0.1-10 wt.% zinc oxide and 0.1-10 wt.% lithium oxide. Preferred Property: The glass frit has average particle diameter of 0.5-10 mu m.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The conductive paste composition comprises 60-95 pts. wt. silver powder, 0.1-10 pts. wt. glass frit, 0.1-5 pts. wt. lithium titanium oxide, 1-20 pts. wt. binder, and 1-20 pts. wt. solvent. Lithium titanium oxide is of formula: Li4Ti5-xMxO12 (I), Silver powder is spherical or flake powder having average particle diameter of 0.5-4 mu m. The conductive paste composition further comprises 0.1-10 pts. wt. zinc oxide and/or zirconia, and 0.1-10 pts. wt. additive(s) chosen from dispersing agent, thickening agent, thixotropic agent and leveling agent. The anti-reflection layer includes silicon nitride layer, hydrogen-containing silicon nitride layer, silicon oxide layer, silicon oxynitride layer, magnesium fluoride layer, zinc sulfide layer, titania layer, and/or cerium oxide layer.x=more than 0 and less than 0.25;andM=Nb, Zn, Mn, Mg, Fe, Ni, Ca, Bi, Al, Zr, V, Cu, Na, K or P.Preferred Properties: Lithium titanium oxide has average particle diameter of 10-500 nm. The emitter layer has sheet resistance of 60-120 ( Omega )/square. Preferred Substrate: The substrate is doped with P-type impurities. The emitter layer is doped with N-type impurities.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The solvent is alpha -terpinol, butyl carbitol acetate, Texanol (RTM: ester alcohol), butyl carbitol, and/or di-propylene glycol monomethyl ether.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: Binder includes photosensitive resin(s) containing carboxyl group. The photosensitive resin containing carboxyl group, is a copolymer of unsaturated carboxylic acid and compound having unsaturated double bond, where copolymer has ethylene-based unsaturated group as pendant group. The photosensitive resin containing carboxyl group, is obtained by reacting copolymer of acid anhydride having unsaturated double bond and compound having unsaturated double bond with compound having hydroxide group and unsaturated double bond.