Synthesis,Structure,Physical Properties, and Displacement Current Measurement of an n-Type Organic Semiconductor:2:3,5:6-Bis(1,1-dicyanoethylene-2,2-dithiolate)-quinone
An n-type organic semiconductor 2:3,5:6-bis(1,1-dicyanoethylene-2,2-dithiolate)-quinone (BDQ) has been successfully
synthesised and characterised. The single crystal structure of BDQ, determined by single-crystal X-ray crystallography, indicated that BDQ is a planar molecule with strong face-to-face π-π stacking (3.40 Å) and S···S interactions (3.66 Å) between neighbouring molecules, which might be in favour of the effective charge transport. The UV-vis spectrum shows
that BDQ has shoulder absorption up to 550 nm (2.25 eV). The electrochemical property displays that the HOMO-LUMO
gap of BDQ obtained from the half-wave redox potential is 1.92 eV. The displacement current measurement of BDQbased devices is demonstrated and discussed
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