Publication:
Sensitive pH detection on gold interdigitated electrodes as an electrochemical sensor

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cris.author.scopus-author-id 57195305332
cris.author.scopus-author-id 22633937800
cris.author.scopus-author-id 7006558013
cris.author.scopus-author-id 7006621435
dc.contributor.author Rajapaksha R.D.A.A.
dc.contributor.author Hashim U.
dc.contributor.author Gopinath S.C.B.
dc.contributor.author Fernando C.A.N.
dc.date.accessioned 2025-01-13T09:35:57Z
dc.date.available 2025-01-13T09:35:57Z
dc.date.issued 2018-04-01
dc.description.abstract Miniaturized in-house high-performance sensors are mandatory for implementing the current needs efficiently. With the microsystems, electrode material is crucial to overcome the above immediate necessity. In this study, gold interdigitated electrode (AuIDE) was overlaid on the silicon (Si) substrate using conventional photolithography process and tested to be applicable as a chemical sensor between the pH range of 3 and 12. The AuIDE was physically characterized by low and high power microscopic and scanning electron microscopic imaging. Further, 3D nano profiler was used to analyze the development on the surface structure. The designed AuIDE has 4 μm consecutive gaps between 6 μm width IDE finger electrodes. The bare IDE was electrically characterized by I–V curves. This microsensor was also tested with different laboratory and commercially relevant solutions and revealed that the stability is in the pH range between 3 and 12. Comparative analysis of AuIDE sensor with commercially available pH meter revealed that AuIDE sensor has ± 0.1 tolerance. This study has demonstrated that chemical behavior of the electrode through pH calibration for further applications in the field of chemical sensors with amperometric approach.
dc.identifier.doi 10.1007/s00542-017-3592-5
dc.identifier.scopus 2-s2.0-85032200152
dc.identifier.uri https://hdl.handle.net/20.500.14170/12392
dc.relation.funding Core Research for Evolutional Science and Technology
dc.relation.grantno undefined
dc.relation.ispartof Microsystem Technologies
dc.relation.ispartofseries Microsystem Technologies
dc.relation.issn 09467076
dc.title Sensitive pH detection on gold interdigitated electrodes as an electrochemical sensor
dc.type Journal
dspace.entity.type Publication
oaire.citation.endPage 1974
oaire.citation.issue 4
oaire.citation.startPage 1965
oaire.citation.volume 24
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Wayamba University of Sri Lanka
person.identifier.orcid 0000-0003-4752-4779
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.scopus-author-id 57195305332
person.identifier.scopus-author-id 22633937800
person.identifier.scopus-author-id 7006558013
person.identifier.scopus-author-id 7006621435
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