TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The compound is copper-aluminum(indium, gallium, aluminum)sulfur/selenide (CA(I,G,A)S), copper-aluminum-indium-gallium-aluminum-sulfur/selenide (CAIGAS), aluminum(indium, gallium, aluminum)sulfur/selenide (AIGAS), copper(indium, gallium, aluminum)sulfur/selenide (C(I,G,A)S) or copper-indium-gallium-aluminum-sulfur/selenide (CIGAS). The compound is deficient (preferred) or enriched in a Group 11 atom. The compound is an oil at a temperature below 100 degrees C. The compound further comprises three or more repeating units (Mb1(ER)(ER)) or (Ma1(ER)(ER)). The compound comprises one of 36 repeating units including (copper(Cu)(0.7)silver(Ag)(0.25)(selenium(Se)-sec-butyl(Bu))(3.95)indium(In)(0.3)gallium(Ga)(0.4)aluminum(Al)(0.3)), (Ga(0.5)Al(0.5)(Se-sec-Bu)(3.9)Cu(0.5)Ag(0.4)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4In(0.7)Al(0.3)), (Cu(0.9)In(0.5)Ga(0.25)Al(0.25)(Se-sec-Bu)(3.9)), (Cu(0.5)(Se-sec-Bu)4Al), (Cu(0.9)(Se-sec-Bu)(3.9)Ga(0.7)Ag(0.3)), (Cu(0.9)(Se-sec-Bu)(3.9)In(0.8)Al(0.2)), (Ag(Se-sec-Bu)4Al), (Ag(Se-sec-Bu)4In(0.7)Al(0.3)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4(In,Ga,Al)), (Cu(0.7)Ag(0.1)(Se-sec-Bu)(3.8)Ga(0.2)In(0.7)Al(0.1)), (Cu(0.8)Ag(0.2)(Se-sec-Bu)4(In,Ga,Al)), (Cu(0.2)Ag(0.8)(Se-sec-Bu)4(In,Ga,Al)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4Ga(0.45)In(0.8)Al(0.05)), (Cu(0.85)Ag(0.1)(Se-sec-Bu)(3.95)Ga(0.15)In(0.7)Al(0.15)), (Cu(0.5)Ag(0.5)(Se-sec-Bu)4Ga(0.3)In(0.7)Al(0.01)), (Cu(0.8)Ag(0.05)(Se-sec-Bu)(3.85)Ga(0.3)In(0.3)Al(0.4)), ((Cu,Ag)(Se-tert-Bu)(Se-n-Bu)(In,Ga,Al)(Se-n-Bu)2),((Cu,Ag)(S-tert-Bu)(S-tert-Pr)(In,Ga,Al)(S-tert-Pr)2), (Cu(1.40)Ag(0.10)(Se-tert-Bu)(1.5)(Se-n-Bu)(In(0.7)Ga(0.25)Al(0.05))(Se-n-Bu)2), (Cu(1.30)Ag(0.10)(S-tert-Bu)(1.4)(S-tert-Bu)(In(0.85)Ga(0.1)Al(0.05))(S-tert-Bu)2), (Cu(1.20)Ag(0.10)(S-tert-Bu)(1.3)(S-n-Bu)(In(0.80)Ga(0.15)Al(0.05))(S-n-Bu)2), (Cu(1.10)Ag(0.10)(Se-tert-Bu)(1.2)(Se-n-Bu)(In(0.75)Ga(0.25)Al(0.05))(Se-n-Bu)2), (Cu(1.05)Ag(0.05)(S-tert-Bu)(1.1)(Se-tert-Bu)(In(0.7)Ga(0.2)Al(0.1))(Se-n-Bu)2), (Cu(0.90)Ag(0.10)(S-tert-Bu)(Se-n-Bu)(In(0.7)Ga(0.25)Al(0.05))(Se-n-Bu)2), (Cu(0.85)Ag(0.10)(S-tert-Bu)(0.95)(S-tert-Bu)(In(0.85)Ga(0.1)Al(0.05))(S-tert-Bu)2), (Cu(0.80)Ag(0.20)(S-tert-Bu)(S-n-Bu)(In(0.80)Ga(0.15)Al(0.05))(S-n-Bu)2), (Cu(0.75)Ag(0.20)(Se-tert-Bu)(0.95)(Se-n-Bu)(In(0.75)Ga(0.20)Al(0.05))(Se-n-Bu)2), (Cu(0.70)Ag(0.30)(S-tert-Bu)(S-tert-Bu)(In(0.7)Ga(0.2)Al(0.1))(S-tert-Bu)2), (Cu(0.65)Ag(0.30)(Se-tert-Bu)(0.95)(S-tert-Bu)(In(0.6)Ga(0.3)Al(0.1))(S-tert-Bu)2), (Cu(0.60)Ag(0.40)(Se-tert-Bu)(In(0.5)Ga(0.4)Al(0.1))(Se-tert-Bu)2), (Cu(0.50)Ag(0.50)(Se-tert-Bu)(Se-n-Bu)(In(0.5)Ga(0.4)Al(0.1))(Se-n-Bu)2), (Cu(0.30)Ag(0.65)(S-tert-Bu)(0.95)(S-tert-Bu)(In(0.5)Ga(0.5)Al(0.1))(S-tert-Bu)2), (Cu(0.30)Ag (0.70)(S-tert-Bu)(S-n-Bu)(In(0.4)-Ga(0.5)Al(0.1))(Se-n-Bu)2), (Cu(0.20)Ag(0.75)(Se-tert-Bu)(0.95)(Se-n-Bu)(In(0.4)Ga(0.5)Al(0.1))(S-n-Bu)2), (Cu(0.20)Ag(0.80)(S-tert-Bu)(Se-tert-Bu)(In(0.3)Ga(0.1)Al(0.6))(Se-tert-Bu)2), (Cu(0.10)Ag(0.85)(Se-tert-Bu)(0.95)(S-tert-Bu)(In(0.3)Ga(0.6)Al(0.1))(S-tert-Bu)2), and (Cu(0.10)Ag(0.90)(Se-tert-Bu)2(In(0.2)Ga(0.7)Al(0.1))(Se-tert-Bu)2).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The compound is linear, branched, cyclic, an alternating copolymer, a block copolymer and/or a random copolymer. EXAMPLE - Indium (In)(selenium(Se)-sec-butyl(Bu))3 (0.31 g), gallium(Ga)(Se-sec-Bu)3 (0.38 g), aluminum(Se-sec-butyl)3 (0.26 g), copper(Cu)Se-sec-Bu (0.12 g) and silver(Se-sec-Bu) (0.12 g) were charged into an inert atmosphere glovebox. Benzene (15 ml) was added, and the reaction mixture was stirred at 25 degrees C for 12 hours. A light yellow solution was obtained. The solvent was removed under reduced pressure and pentane (30 ml) was used to extract the product. The resulting solution was filtered through a filter cannula and the volatiles were subsequently removed under reduced pressure to obtain (copper(0.7)silver(0.25)(Se-sec-Bu)(3.95)In(0.3)Ga(0.4)Al(0.3)) (1.26 g, 93%).