Results 191 to 200 of about 3,767 (227)

Electrochemical cycling and electrochromic properties of polyindole

Materials Research Bulletin, 1994
Polyindole can be obtained after anodic oxidation of indole C8NH7 in acetonitrile - LiClO4 or LiBF4 solutions. This electroactive material presenting an electrical conductivity close to 10−1 S.cm−1 is green in the doped state and yellow in the reduced form.
E.B. Maarouf, D. Billaud, E. Hannecart
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Electrochromic Devices and Smart Window Applications of Near-Infrared Electrochromic Thienoviologens Polymer Properties

ACS Applied Materials & Interfaces
In recent years, with the increasing demand for building energy efficiency and comfort in daily life, electrochromic smart windows have attracted widespread attention. Electrochromic smart windows utilize electrochromic material (ECM) technology to change the color or transparency of the window under the action of an electric field, thereby regulating ...
Xue Yu, Yue Liu, Wei Luo, Xiaodan Zeng, Leqin Cheng, Yuewei Zhang   +5 more
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Photochromic and electrochromic properties of tungstate glasses

Solid State Communications, 1978
Abstract Electrochromic and photochromic behavior have been observed for the first time in the Li 2 O-B 2 O 3 -WO 3 glass system. Double injection of protons and electrons results in the formation of H x WO 3 in the glass matrix which exhibits a broad absorption band peaking in the vicinity of 1.45–1.65 eV due to electron hopping between W +5 ...
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Synthesis and electrochromic properties of oligothiophene derivatives

Synthetic Metals, 2010
Abstract In order to develop novel organic electrochromic materials, oligothiophene derivatives, 5,5″-biformyl-2,2′:5′,2″-terthiophene (OHC-3T-CHO) and 2,3,4,5-tetrathiopenyl-thiophene (X-T), were synthesized. Three electrochromic devices have been fabricated using OHC-3T-CHO and XT, and the electrochromic properties of OHC-3T-CHO and X-T were ...
Binbin Yin, Chuanyu Jiang, Yongguang Wang, Ming La, Ping Liu, Wenji Deng   +5 more
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Electrochromic Properties Based on Oligothiophene Derivatives

Chinese Journal of Chemistry, 2008
AbstractIn order to develop novel electrochromic materials, 5,5′′‐dicyano‐2,2′:5′,2′′‐terthiophene (DCN3T), 5,5′′′‐dicyano‐2,2′:5′,2′′:5′′,2′′′‐tetrathiophene (DCN4T), 5,5′′′‐dimethoxy‐2,2′:5′,2′′:5′′,2′′′‐tetrathiophene (DMO4T) and 4,4′′‐bicarboxyl‐5,5′′‐bipropyl‐2,2′:5′,2′′‐terthiophene (BP3T‐DCOOH) were synthesized, and their electrochromic ...
Ming LA, Miao‐Miao LIU, Ping LIU, Wen‐Ji DENG, Zhen TONG   +4 more
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Electrochromic Switching of the Optical Properties of Polyisothianaphthene

Journal of The Electrochemical Society, 1987
We present a detailed study of the electrochromic switching phenomena in the novel conducting polymer, polyisothianaphthene. We find reversible electrochromic switching with a characteristic switching time of a few hundred milliseconds. Since the results indicate that the rate limiting step in the electrochromic switching involves diffusion of the ...
H. Yashima, M. Kobayashi, K. ‐B. Lee, D. Chung, A. J. Heeger, F. Wudl   +5 more
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Electrochromic Properties of NiO Thin Coatings

Key Engineering Materials, 2019
In this work, we report the role of structure on electrochromic behavior of nickel oxide thin coatings deposited via chemical vapor deposition on ITO-coated glass in (EtCp)2Ni–O2–Ar and (EtCp)2Ni–O3–O2–Ar reaction systems. The structure and chemical composition were analyzed and then correlated with electrochemical response and transmittance modulation
Anastasia S. Kondrateva, Polina Bespalova, Gennady Konstantinovich Baryshev, Maxim Mishin   +3 more
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Optical properties of electrochromic vanadium pentoxide

Journal of Applied Physics, 1989
Electrochemical and spectroscopic measurements were used to characterize the electrochromic behavior of sputtered V2O5 films. In response to lithium intercalation, the fundamental optical absorption edge of V2O5 shifts to high energies by 0.20–0.31 eV as the lithium concentration increases from Li0.0V2O5 to Li0.86V2O5. There is a corresponding increase
Stuart F. Cogan, Nguyet M. Nguyen, Stephen J. Perrotti, R. David Rauh   +3 more
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The electrochromic properties of hydrous nickel oxide

Solar Energy Materials, 1987
The electrochromic properties of thin films of nickel hydroxide on conductive tin-oxide-coated glass substrates are reported. Adherent, uniform thin films (⩽ 100 nm) which are cathodically electrodeposited from Ni(NO3)2 solution, can be repeatedly colored and bleached electrochemically in a 1M KOH electrolyte.
Michael K. Carpenter, Robert S. Conell, Dennis A. Corrigan   +2 more
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Electrochromic properties of alkylviologen-cyclodextrin systems

Journal of Applied Electrochemistry, 1987
Electrochromic properties of methyl, ethyl, n-hexyl and n-heptyl viologens, and α-, β-, γ-cyclodextrin systems were studied using cyclic voltammetry and absorption spectroscopy. Colourations of red-violet (λ max = 530 or 560 nm), blue (λ max = 600nm) and light purple (λ max = 560 and 600 nm) could be obtained by changing the length of the alkyl chain ...
A. Yasuda, H. Mori, J. Seto
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