HEC/PVDF coated glass substrate for acetone liquid sensor

Marlina Jahava, Mohd Hafiz Jali, Ahmad Nur Azeim Ahmad Zamzuri, Md Ashadi Md Johari, Aminah Ahmad, Haziezol Helmi Mohd Yusof, Huda Adnan Zain, Sulaiman Wadi Harun, Moh Yasin

Research output: Contribution to journalArticlepeer-review


An acetone liquid sensor has been successfully demonstrated by utilizing glass substrate coated with Hydroxyethylcellulose/Polyvinylidene Fluoride (HEC/PVDF). The sensing mechanism is based on the change in refractive index (RI) of the HEC/PVDF coating layer when exposed to acetone concentration variations. When the light progress through the sensing material, the intensity decrease due to absorption and scattering. The proposed sensor's produces exceptional results where output voltage has decreased linearly from 1.8 V to 1.3 V. It showed a good response with sensitivity of 0.0331 V/% and a linearity of 99.1 % as compared to an uncoated glass substrate.

Original languageEnglish
Pages (from-to)265-271
Number of pages7
JournalOptoelectronics and Advanced Materials, Rapid Communications
Issue number7-8
Publication statusPublished - 1 Jul 2023


  • Acetone
  • Glass substrate


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