Synthetic Main Group and Transition Metal Targets for Electronic and Photovoltaic Applications

Abstract

The work presented herein is focused on the synthesis and characterization of inorganic materials for potential use in electronic and photovoltaic applications. Platinum containing complexes of the form LxPt(SC4H2Br)2 (x = 1, L = dppe, dppp; x = 2, L = PBu3, PAr3), were synthesized using methods adapted from established literature procedures. The complexes were tested for their ability to undergo polymerization using known cross-coupling techniques. Polymers with molecular weights ranging from 3500 - 38 000 g/ mol were obtained. We were unable to purify the polymeric materials due to high solubility of the crude product in all organic solvents. Boron nitride (BN) is a ceramic with hardness akin to diamond in its cubic form, and has an exceptionally high thermal conductivity, making it ideal as a heat transfer agent in microelectronics. We began looking at molecular boron nitride systems by isolating inorganic analogues of ethene (H2BNH2), in the form of donor-acceptor adducts of the form LB-H2BNRR'2-BH3 (LB = DMAP, IPr, IPr=CH2 and R, R' = H, H; Me, Me; H, tBu). Preliminary dehydrogenation chemistry was performed with [Rh(COD)Cl]2 and MBr2 (M = Cu, Ni), to yield borazine as a byproduct, suggesting the presence of HBNH as an intermediate species.