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

Abstract

The performance of a printable, ultraviolet (UV) photoconducting biopolymer is investigated for UV photodetectors of varying layer thicknesses. The biopolymer is formed from deoxyribonucleic acid (DNA) with the addition of the Clevios P formulation of poly(3,4-ethylenedioxythiophene)-poly(styrenesulphonate) (PEDOT:PSS) and hexadecyltrimethyl-ammonium chloride (CTMA); it is then combined with phenyl-C61-butyric acid methyl (PCBM) to make a printable, UV photoconducting material. The highest measured responsivity of the photodetectors is 1.2 mA/W at 20 V bias using a 260 nm source.

An ink-jet printed dual-CD ratiometric fluorescent paper-based sensor for the visual detection of Cu2+

“…With the development of inkjet printing technology, inkjet inks have expanded from traditional dyes and pigments to various functional materials. At present, inkjet printing has been applied in chemistry, 9 biology, 10 life sciences 11 and printed electronics, 12 and it is widely used in other fields. Because the fluorescence response of a single CD to copper ions is not obvious enough, we preferred the ratio fluorescence analysis method to construct the detection test paper.…”

Synthesis of Conductive Sol-Gel ZnO Films and Development of ZnO Printed Electronics

“…Nonetheless, both techniques are new and exciting ways to fabricate electronic devices. Both AJP and IJP techniques are currently used to print a wide variety of organic and inorganic inks for use as flexible photodetectors, transistors, and other circuit board components [4][5][6][7][8][9][10]. ZnO is an exciting material for electronics due to its direct wide bandgap (3.2 eV at 298 K), strong UV absorption, and electrical tunability.…”