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Journal ArticleDOI

Charge transport processes in conducting polypyrrole/Prussian Blue bilayers

28 Jul 2002-Materials Chemistry and Physics (Elsevier)-Vol. 76, Iss: 1, pp 15-19
TL;DR: In this article, the electronic transport properties of electrochemically deposited conducting polypyrrole (PPy)/Prussian Blue (PB) bilayer films have been studied by investigating the currentvoltage (I-V) characteristics in dark and under white light illumination.
About: This article is published in Materials Chemistry and Physics.The article was published on 2002-07-28. It has received 28 citations till now. The article focuses on the topics: Prussian blue & Space charge.
Citations
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Journal ArticleDOI
TL;DR: The most important examples from major classes of electrochromic materials namely transition metal oxides, Prussian blue, phthalocyanines, viologens, fullerenes, dyes and conducting polymers (including gels) are described in this article.

743 citations

Journal ArticleDOI
TL;DR: In this article, new electrochemical sensors for dopamine (DA) and phenol derivative, based on hybrid inorganic redox material-organic conducting polymers, were developed, which exhibited a linear response over wide range of 4-nitrophenol concentrations from 30 to 90μM, with a detection limit of 8.23μM (s/n = 3).

118 citations

Journal ArticleDOI
TL;DR: In this paper, the electrochemical properties of a bilayer consisting of iron(III) hexacyanoferrate, well known as Prussian Blue, and poly[4,4 · -bis(butylsulphanyl)-2,2 · -bithiophene on a platinum electrode are investigated.

54 citations

Journal ArticleDOI
TL;DR: In this paper, a self-degraded template was used to synthesize polypyrrole (PPy)/PB and PPy/Ag composite microtubes in one pot.
Abstract: Polypyrrole (PPy)/PB and PPy/Ag composite microtubes were synthesized in one pot by using methyl orange (MO) as a reactive self-degraded template. In contrast to reported conventional template approaches, the MO template did not need to be removed after polymerization. The formation mechanism, structural characteristics, conductivity, and electrochemical properties of the obtained PPy/PB and PPy/Ag microtubes are reported.

52 citations

Journal ArticleDOI
TL;DR: In this article, the authors present an overview of common pigments found in natural dyes, extraction methods, the general efficiency of natural dye sensitizers, the types of natural Dyes used in water splitting and membranes used as protective layers.
Abstract: The development of titanium dioxide-based semiconductors has been widely studied due to the efficiency of this material in photoelectrochemical water splitting. However, the large band gap of titanium dioxide can only absorb UV light, thus reducing its performance in photoelectrochemical applications. Moreover, the recombination of electron-hole pairs also affects the efficiency of phototelectrochemical reactions. Thus, many efforts have been made to enhance the performance of titanium dioxide, and considerable attention has been focused on dye sensitizers, particularly natural dyes, due to their environmental friendliness and low cost. In addition, dye sensitizers exhibit fast electron injection and slow backward reactions. However, natural dye sensitizers are unstable in solution, thus requiring a protective layer, such as a conductive polymer layer. This paper presents an overview of common pigments found in natural dyes, extraction methods, the general efficiency of natural dyes, the types of natural dyes used in water splitting and membranes used as protective layers.

50 citations

References
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Journal ArticleDOI
TL;DR: In this article, a stable organic electroluminescent devices based on vapor-deposited Alq thin films have been achieved, which are derived from several factors including: (1) a multilayer thin-film structure with a CuPc stabilized hole-injection contact, (2) a hole-transport diamine layer using a naphthyl substituted benzidine derivative, and (3) an ac drive wave form.
Abstract: Highly stable organic electroluminescent devices based on vapor‐deposited Alq thin films have been achieved. The improvement in stability is derived from several factors including: (1) a multilayer thin‐film structure with a CuPc stabilized hole‐injection contact, (2) a hole‐transport diamine layer using a naphthyl‐substituted benzidine derivative, and (3) an ac drive wave form. These emissive devices have shown an operational half‐lifetime of about 4000 h from an initial luminance of 510 cd/m2.

1,559 citations

BookDOI
01 Jan 1993
TL;DR: In this article, electrical and electrochemical properties of ion conducting polymers are discussed. But they do not consider the properties of polymers with polymer electrolytes, as they do in this paper.
Abstract: Preface. Electrical and electrochemical properties of ion conducting polymers. Electrical and electrochemical properties of electronically conducting polymers. Highly-conductive polymer electrolytes. Solvation mechanisms in low molecular weight polyethers. Lithium batteries with polymer electrodes. Lithium polymer batteries. Electrochromic devices. Laminated electrochromic displays and windows. Functionalized conductive polymer membranes/films. Electroactive polymers in chemical sensors.

824 citations

Journal ArticleDOI
TL;DR: The most advanced organic light emitting diode (LED) technology has reached a point where performance levels are adequate for a number of applications as discussed by the authors, and a review examines the key scientific issues that underlie the operation of such LEDs.

256 citations