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Updated: Apr 17, 2026
Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications
Published on: July 28, 2021
Fast, direct, low-cost route to scalable, conductive, and multipurpose poly(3,4-ethylenedixoythiophene)-coated
Rambabu Sydam1, Ramesh K Kokal, Melepurath Deepa
1Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yedduaram-502205, Telangana (India).
Abstract:
Poly(3,4-ethylenedioxythiophene) (PEDOT) films are deposited, using an electroless method, onto flexible plastic poly(ethylene terephthalate) (PET) substrates of approximately 20×6 cm(2). The sheet resistance of a PEDOT-PET film is approximately 600 Ω per square, and the nanoscale conductivity is 0.103 S cm(-1). A plastic electrochromic PEDOT-Prussian blue device is constructed. The device undergoes a color change of pale blue to deep violet-blue reversibly over 1000 cycles, thus demonstrating its use as a light-modulating smart window. The PEDOT-PET film is also used in a quantum dot solar cell, and the resulting photoelectrochemical performance and work function indicate that it is also promising for photovoltaic cells. The high homogeneity of the PEDOT deposit on PET, the optimal balance between conductivity and optical transparency, and the demonstration of its use in an electro-optical device and a solar cell, offer the opportunity to use this electrode material in a variety of low-cost optoelectronic devices.
