Application of rGO–Zn0.8Cd0.2S in Schottky barrier diode with low barrier height and highly enhanced photoresponse.

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A new Cu(ii)-based 1D coordination polymer [Cu(fum)(4-phpy)2(H2O)], (1) (H2fum = fumaric acid and 4-phpy = 4-phenyl pyridine) exhibits electrical conductivity in the semiconductor region and behaves as Schottky diode.

14-Membered metal–ligand ring present in a photosensitive 2D coordination polymer, [Zn2(fum)2(4-phpy)4(H2O)2] (H2fum = fumaric acid and 4-phpy = 4-phenyl pyridine) shows aromatic character as evident by the nucleus-independent chemical shifts (NICS) calculation.

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A hetero-dinuclear cobalt(iii)/sodium complex has been synthesized and characterized. The complex which has been used to construct photosensitive Schottky devices, shows interesting C–H⋯π(N3) interactions in the solid state.

A phenoxo and end-to-end thiocyanate bridged copper­(II) coordination polymer (CP), [Cu2L2(μ-1,3-SCN)2] n , where HL is an potential tetradentate N2O2 donor Schiff base ligand, 2-(2-(ethylamino)­ethylimino)­methyl)-6-ethoxyphenol, has been synthesized and characterized. The band gap, bulk capacitance, electron lifetime, relaxation time, dielectric constant, and DC conductivity of the complex in the solid state have been studied. Variable temperature magnetic susceptibility measurement indicates the presence of weak antiferromagnetic interactions among the copper­(II) centers with J = −0.97 cm–1. The complex shows increase in conductivity when illuminated with visible light (photosensitivity ∼2.833).