Title :
Performance of a Printed Photodetector on a Paper Substrate
Author :
Aga, Rachel S. ; Lombardi, Jack P. ; Bartsch, Carrie M. ; Heckman, Emily M.
Author_Institution :
Sensors Directorate, Air Force Res. Lab., Wright-Patterson AFB, OH, USA
Abstract :
A multilayer polymeric photodetector fabricated on a paper substrate by inkjet and aerosol jet printing has been demonstrated. It employs a poly(3-hexylthiophene) and C61-butyric acid methyl ester blend (P3HT:PCBM) as a photoactive layer sandwiched between a silver bottom electrode and a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) top electrode. A deoxyribonucleic acid biopolymer interlayer between P3HT:PCBM and PEDOT:PSS top electrode enables the printing of the PEDOT:PSS on P3HT:PCBM. The printed photodetector exhibits a photoresponse when photoexcited by four different light emitting diodes with center wavelengths of 405, 465, 525, and 635 nm. The highest responsivity was observed at 405 nm. The responsivity to pulsed light reveals a strong frequency dependence from 25 to 1000 Hz.
Keywords :
ink jet printing; light emitting diodes; optical fabrication; optical multilayers; optical polymers; photodetectors; polymer blends; silver; Ag; C61-butyric acid methyl ester blend; P3HT-PCBM; PEDOT-PSS top electrode; aerosol jet printing; deoxyribonucleic acid biopolymer interlayer; frequency 25 Hz to 1000 Hz; frequency dependence; inkjet printing; light emitting diodes; multilayer polymeric photodetector; paper substrate; photoactive layer; poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) top electrode; poly(3-hexylthiophene); printed photodetector; pulsed light; silver bottom electrode; DNA; Electrodes; Light emitting diodes; Photodetectors; Polymers; Printing; Substrates; Aerosol jet; flexible electronics; optical sensor; organic semiconductors; semiconductor devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2292830
