American Journal of Applied Sciences

Study on Infrared PbS Detector Prepared Using Copper Electrodes of Printed Circuit Board

Hariyadi Soetedjo, Gunawan S. Prabowo and Darsono Bahrun

DOI : 10.3844/ajassp.2013.624.627

American Journal of Applied Sciences

Volume 10, Issue 6

Pages 624-627


Copper layers of Printed Circuit Board (PCB) have been used as electrodes for PbS infrared structure detector to introduce low cost and simple in preparation. PbS deposition as an active layer detector has been prepared for a few micrometers in thickness using an evaporation technique under vacuum pressure at 10-6 Torr. Photoconductivity phenomenon has been observed from the measurement when IR radiation of a Tungsten lamp introduced to the detector. The sensitivity of the detector respects to the variation of radiation intensities was also observed. The results showed that the detector has good sensitivity indicated by rapid drop voltages at a short-wavelength IR region (1-3 µm). This phenomenon is encouraging for further applications of detector prepared using the electrodes from a commercialized PCB.


© 2013 Hariyadi Soetedjo, Gunawan S. Prabowo and Darsono Bahrun. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.