Preparation and application of a D–A conjugated electrochromic flexible electrode with side chain carbazole active groups in supercapacitors

Abstract

Electrochromic power storage devices (ESCs) integrate energy storage and electrochromic behaviour into a single full cell that can enable the visualization of the energy status by the naked eye. One...

Arylacetylene End-Capped Triarylamine-Based D–A System for Switching from Binary to Ternary Memory Behavior

“…In assessment with compound 4a , introducing the donor ( 4b and 4c ) and acceptor ( 4e – f ) groups into the terminal positions has modified the photophysical behavior of the compounds. Compared to 4a , compound 4b showed a bathochromic shift due to the electron-donating character of the tert -butylphenyl substituent and the extension of π-conjugation . Compounds 4e and 4f showed a red shift and hyperchromic shift compared to compound 4a owing to the electron-withdrawing nature of −F and −CF 3 groups .…”

“…Compared to 4a, compound 4b showed a bathochromic shift due to the electron-donating character of the tert-butylphenyl substituent and the extension of π-conjugation. 29 Compounds 4e and 4f showed a red shift and hyperchromic shift compared to compound 4a owing to the electron-withdrawing nature of −F and −CF 3 groups. 30 Compound 4d substituted with the nitro group in the terminal position of the TAA unit exhibited the highest absorption maxima of 420 nm owing to the charge transfer from the amino to nitro group in the molecular backbone.…”

Copper complex/polyoxometalate‐based tunable multi‐color film for energy storage

“…In recent years, energy conservation and storage devices have been the focus of significant research efforts due to the energy crisis. 1,2 Electrochromic energy storage (EES) devices combine the advantages of energy storage with accompanying color changes through electrochemical reactions and are suitable for many rapidly developing technologies, including electrochromic (EC) smart windows, [3][4][5] wearable devices, 6 flexible displays, 7,8 and miniaturized indicators. 9,10 As we know, electrode material plays a key role in assembling EES devices.…”

Syntheses of novel fluorinated dibenzo[a,c]phenazine comprising polymers for electrochromic device applications

“…[1][2][3][4][5] The discovery of these fascinating, multifunctional materials has opened a new research area and several researchers are focused on the field of conjugated polymers and their potential usage in different application areas such as electrochromic devices (ECDs), organic photovoltaics (OPVs), organic light emitting diodes (OLEDs), field effect transistors (FETs), biosensors, and super capacitors (SCs). [6][7][8][9][10][11][12][13][14] There are some crucial parameters for conjugated polymers such as the band gap (E g ), absorption in the visible region and energy levels. The Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO) affect the performance of conducting polymers (CPs) in these applications.…”

“…1–5 The discovery of these fascinating, multifunctional materials has opened a new research area and several researchers are focused on the field of conjugated polymers and their potential usage in different application areas such as electrochromic devices (ECDs), organic photovoltaics (OPVs), organic light emitting diodes (OLEDs), field effect transistors (FETs), biosensors, and super capacitors (SCs). 6–14…”