Characterisation of DNA biopolymer-based UV photodetector fabricated by inkjet printing


The performance of a printable, ultraviolet (UV) photoconducting biopolymer is investigated for UV photodetectors of varying layer thicknesses. The biopolymer is made from deoxyribonucleic acid (DNA) with the addition of the Clevios P formulation of poly(3,four-ethylenedioxythiophene)-poly(styrenesulphonate) (PEDOT:PSS) and hexadecyltrimethyl-ammonium chloride (CTMA); it is then combined with phenyl-C61-butyric acid methyl (PCBM) to create a printable, UV photoconducting material. The very best measured responsivity of the photodetectors is one.2 mA/W at twenty V bias employing a 260 nm supply.

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