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Special Issue "Electrochromic Materials and Devices"

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A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (31 August 2011)

Special Issue Editor

Guest Editor
Prof. Dr. Roger J. Mortimer

Department of Chemistry, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
Website | E-Mail
Fax: +44 1509 223925
Interests: electrochemistry; materials electrochemistry; electrochromic materials; electrochemical sensors; metal electrodeposition

Special Issue Information

Dear Colleagues,

Electrochromic materials have the property of a change, evocation, or bleaching, of colour as effected either by an electron transfer (redox) process or by a sufficient electrochemical potential.  The main classes of electrochromic materials are the metal oxides, viologens, conjugated conducting polymers, metal coordination complexes and metal hexacyanometallates.  Successful applications of electrochromic materials in devices include anti-glare car mirrors, smart windows (based on modulation of either the transmitted or reflected solar radiation) for use in cars, aircraft and buildings, electrochromic strips as battery state-of-charge indicators and electrochromic sunglasses.  Proposed applications include switchable mirrors, re-usable price labels, protective eyewear, controllable aircraft canopies, glare-reduction systems for offices, devices for frozen-food monitoring, camouflage materials, chameleonic fabrics, spacecraft thermal control, an optical iris for a camera lens and (non-emissive) controllable light-reflective or light-transmissive display devices for optical information and storage.

In this special issue we aim to cover recent progress and novel trends in the field of electrochromic materials and devices, and invite papers ranging from the synthesis, characterisation, and performance of electrochromic materials, through to device design, modelling and testing.  Papers describing other materials aspects important for the construction of electrochromic devices are also invited, to include optically transparent electrodes, electrolyte layers and device encapsulation.

Prof. Dr. Roger J. Mortimer
Guest Editor

Keywords

  • electrochromic materials
  • electrochromic devices
  • metal oxides
  • viologens
  • conjugated conducting polymers
  • metal complexes
  • Prussian blue
  • optically transparent electrodes
  • electrolyte
  • device encapsulation

Published Papers (2 papers)

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Research

Open AccessArticle Electrochromic Type E-Paper Using Poly(1H-Thieno[3,4-d]Imidazol-2(3H)-One) Derivatives by a Novel Printing Fabrication Process
Materials 2011, 4(12), 2171-2182; doi:10.3390/ma4122171
Received: 8 October 2011 / Revised: 8 December 2011 / Accepted: 9 December 2011 / Published: 14 December 2011
Cited by 11 | PDF Full-text (452 KB) | HTML Full-text | XML Full-text
Abstract
In this study, we report poly(1H-thieno[3,4-d]imidazol-2(3H)-one) (pTIO) derivatives for an electrochromic (EC) type e-paper and its novel printing fabrication process. pTIO is a kind of conductive polymer (CP) s which are known as one of the EC materials. The electrochromism of pTIO is
[...] Read more.
In this study, we report poly(1H-thieno[3,4-d]imidazol-2(3H)-one) (pTIO) derivatives for an electrochromic (EC) type e-paper and its novel printing fabrication process. pTIO is a kind of conductive polymer (CP) s which are known as one of the EC materials. The electrochromism of pTIO is unique, because its color in doped state is almost transparent (pale gray). A transparent state is required to show a white color in a see-through view of an EC type e-paper. An electrochromism of CP has a good memory effect which is applicable for e-paper. The corresponding monomers of CP are able to be polymerized with an electrochemical method, which be made good use of for the fabrication process of e-paper. pTIO derivatives are copolymerized with other pi-conjugated X unit, which adjusts the color of electrochromism. Finally, we fabricated a segment matrix EC display using pTIO derivatives by ink-jet printing. Full article
(This article belongs to the Special Issue Electrochromic Materials and Devices)
Open AccessArticle Hysteretic Tricolor Electrochromic Systems Based on the Dynamic Redox Properties of Unsymmetrically Substituted Dihydrophenanthrenes and Biphenyl-2,2'-Diyl Dications: Efficient Precursor Synthesis by a Flow Microreactor Method
Materials 2011, 4(11), 1906-1926; doi:10.3390/ma4111906
Received: 13 September 2011 / Revised: 6 October 2011 / Accepted: 10 October 2011 / Published: 26 October 2011
Cited by 9 | PDF Full-text (1781 KB) | HTML Full-text | XML Full-text
Abstract
A series of biphenyl-2,2'-diylbis(diarylmethanol)s 3, which have two kinds of aryl groups at the bay region, were efficiently obtained by integrated flow microreactor synthesis. The diols 3NO/NX are the precursors of unsymmetric biphenylic dications 2NO/NX2+, which are transformed
[...] Read more.
A series of biphenyl-2,2'-diylbis(diarylmethanol)s 3, which have two kinds of aryl groups at the bay region, were efficiently obtained by integrated flow microreactor synthesis. The diols 3NO/NX are the precursors of unsymmetric biphenylic dications 2NO/NX2+, which are transformed into the corresponding dihydrophenanthrenes 1NO/NX via 2NO/NX+• upon reduction, when they exhibit two-stage color changes. On the other hand, the steady-state concentration of the intermediate 2NO/NX+• is negligible during the oxidation of 1NO/NX to 2NO/NX2+, which reflects unique tricolor electrochromicity with a hysteretic pattern of color change [color 1→color 2→color 3→color 1]. Full article
(This article belongs to the Special Issue Electrochromic Materials and Devices)
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