Fabrication of fast switching electrochromic window based on poly(3,4-(2,2-dimethylpropylenedioxy)thiophene) thin film

Lakshmanan, Raja and Raja, PP and Shivaprakash, NC and Sindhu, S (2016) Fabrication of fast switching electrochromic window based on poly(3,4-(2,2-dimethylpropylenedioxy)thiophene) thin film. In: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 27 (6). pp. 6035-6042.

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Abstract

An electroactive poly(3,4-(2,2-dimethylpropylenedioxy)thiophene) (PProDOT-Me-2) thin film was electropolymerized by cyclic voltammetry technique, and its electrochemical and electrochromic properties were systematically studied. The prepared PProDOT-Me-2 thin film was electrochemically reversible, and it showed a linear relation between peak current with scan rates. The electrochemical impedance spectrum also indicated the diffusion limitation of the film during charge/discharge process. The film showed a good color contrast (60 %) with a low applying potential of 1.2 V. The electrochromic window (ECW) based on PPro-DOT-Me-2 film was fabricated and studied for its electrochromic performance. The color contrast of the device was achieved as 36 % at lambda(max) of 560 nm. The switching speed of fabricated ECW for coloring and bleaching were almost 0.7 s in a range of +1.5 to -1.5 V. The fabricated device showed better cyclic current response and remarkable switching stability over 100 cycles. The novelty of the electrochromic window based on PProDOT-Me-2 is the maximum absorbance at photopic wavelength that would be highly sensitive to human eyes.

Item Type:	Journal Article
Publication:	JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Publisher:	SPRINGER
Additional Information:	Copy right for this article belongs to the SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	19 Jul 2016 09:59
Last Modified:	19 Jul 2016 09:59
URI:	http://eprints.iisc.ac.in/id/eprint/54199

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