Solid State pH Sensor Based on Light Emitting Diodes (LED) As Detector Platform

Article, Other literature type English OPEN
Lau, King Tong ; Shepherd, R. ; Diamond, Danny ; Diamond, Dermot (2006)
  • Publisher: Molecular Diversity Preservation International (MDPI)
  • Journal: Sensors (Basel, Switzerland), volume 6, issue 8, pages 848-859 (issn: 1424-8220, eissn: 1424-8220)
  • Related identifiers: doi: 10.3390/s6080648, pmc: PMC3926527
  • Subject: Full Research Paper | light emitting diode | light dependent resistor. | TP1-1185 | solid-state pH sensor | optical sensing | colorimetric sensor | Chemical technology | pH sensing | light dependent resistor

A low-power, high sensitivity, very low-cost light emitting diode (LED)-based device developed for low-cost sensor networks was modified with bromocresol green membrane to work as a solid-state pH sensor. In this approach, a reverse-biased LED functioning as a photodiod... View more
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