TY - JOUR
T1 - Superior performance characteristics for the poly(2,5-dimethoxyaniline)- poly(styrene sulfonic acid)-based electrochromic device
AU - Li, Chen Yan
AU - Huang, Li Ming
AU - Wen, Ten Chin
AU - Gopalan, A.
PY - 2006/3/15
Y1 - 2006/3/15
N2 - We have fabricated an electrochromic (EC) device with poly(2,5- dimethoxyaniline), PDMA, entrapped in poly(styrene sulfonic acid) (PSS) as an electrochromic layer. The device showed improved performances like stability, optical contrast, etc., over the device with a PDMA layer doped by H 2SO4. In the process of fabrication of the EC device with a sandwich configuration, indium tin oxide (ITO)/PDMA-PSS||poly(ethyleneimine) (PEI)/orthophosphoric acid (H3PO4)/WO3/ITO, electrochemical polymerization of 2,5-dimethoxyaniline (DMA) was performed with PSS as electrolyte and ITO coated glass as working electrode. The performance characteristics of EC device, like optical contrast, stability, switching time, etc., were followed by cyclic voltammetry, double potential step chronoamperometry and in-situ spectroelectrochemistry. The device was operated in between - 1 V and + 1 V, and absorption characteristics were followed by in-situ UV-visible spectroscopy. A visible contrast in color upon switching the potential from - 1 V to + 1 V was noticed for the device. The device was pale yellow at - 1 V and dark green at + 1 V. Incorporation of PSS into PDMA resulted enhancement in the performance of the complementary electrochromic device. The optical contrast of the device was improved by incorporating PSS into PDMA matrix. The device retained nearly 50% of their optical contrast after 10,000 double steps informing the superior performance of PDMA-PSS in the EC device.
AB - We have fabricated an electrochromic (EC) device with poly(2,5- dimethoxyaniline), PDMA, entrapped in poly(styrene sulfonic acid) (PSS) as an electrochromic layer. The device showed improved performances like stability, optical contrast, etc., over the device with a PDMA layer doped by H 2SO4. In the process of fabrication of the EC device with a sandwich configuration, indium tin oxide (ITO)/PDMA-PSS||poly(ethyleneimine) (PEI)/orthophosphoric acid (H3PO4)/WO3/ITO, electrochemical polymerization of 2,5-dimethoxyaniline (DMA) was performed with PSS as electrolyte and ITO coated glass as working electrode. The performance characteristics of EC device, like optical contrast, stability, switching time, etc., were followed by cyclic voltammetry, double potential step chronoamperometry and in-situ spectroelectrochemistry. The device was operated in between - 1 V and + 1 V, and absorption characteristics were followed by in-situ UV-visible spectroscopy. A visible contrast in color upon switching the potential from - 1 V to + 1 V was noticed for the device. The device was pale yellow at - 1 V and dark green at + 1 V. Incorporation of PSS into PDMA resulted enhancement in the performance of the complementary electrochromic device. The optical contrast of the device was improved by incorporating PSS into PDMA matrix. The device retained nearly 50% of their optical contrast after 10,000 double steps informing the superior performance of PDMA-PSS in the EC device.
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U2 - 10.1016/j.ssi.2006.01.002
DO - 10.1016/j.ssi.2006.01.002
M3 - Article
AN - SCOPUS:33644955779
VL - 177
SP - 795
EP - 802
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
IS - 7-8
ER -