Semiconductor layered oxides: Synthesis, properties and applications

Ugur Unal, Yasumichi Matsumoto, Shintaro Ida

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Layered oxide materials have been widely studied in the past couple of decades, because of their very unique, highly applicable chemical and physical properties. The preparation, characterization and the application of several series of inorganic layered oxides in different fields are of common interest. Among those materials are mainly titanates, niobates, and tantalates. These promising materials find applications in several fields such as ion-exchange, electrochemistry, photoelectrochemistry and photoluminescence. Their ability to be modified easily makes them applicable in these fields and their properties are highly dependent on the modification and interlayer materials. The synthesis of layered oxides has been generally carried out with soft chemistry method, which does not require any abrupt conditions and allows low temperature modification and design of layered oxides in a broad range of shape and structure. The acidic properties of the layers make them available to be easily exfoliated and exfoliation brings about the easy processing of the layered oxides for intercalation and thin-film preparation. The development of the thin-films from layered oxides with novel characteristics is inevitable for the advancement in thin film applications in a wide range of fields. Production of nanoscale thin films with higher ion exchange and modification capability, thermal stability and appropriate electrochemical properties contributes to the utilization of the films as functional materials with advanced features. Modification of the interlayer by introducing various materials has been previously performed by applying several methods. In our study, we have been mostly focused on the Electrostatic self-assembly deposition (ESD), which was found in our laboratory and Layer-by-layer assembly (LBL) methods. Both methods are based on the basic electrostatic principles, where cations (guests) combine with the negatively charged host layers right after coming into the contact. The chapter will be focused on the synthesis and properties of semiconductor layered oxide materials as well as their applications in the field of electrochemistry and photoelectrochemistry. The properties of the layered oxides will be discussed by giving some experimental data supported by the theoretical approach. Among those properties and applications are intercalation behavior when in contact with complex molecules, water splitting or photocatalytic capability, and photoluminescence characteristics of Lanthanide cation intercalated films. We believe that the chapter will fill a gap in the solid state chemistry of layered oxide materials, since there are few numbers of publications but most of them are on layered silicates.

Original languageEnglish
Title of host publicationProgress in Solid State Chemistry Research
PublisherNova Science Publishers, Inc.
Pages1-54
Number of pages54
ISBN (Print)1600213138, 9781600213137
Publication statusPublished - Dec 1 2007

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Oxides
Thin films
Electrochemistry
Intercalation
Cations
Electrostatics
Ion exchange
Photoluminescence
Film preparation
Layered semiconductors
Silicates
Lanthanoid Series Elements
Functional materials
Electrochemical properties
Self assembly
Chemical properties
Thermodynamic stability
Physical properties
Molecules
Water

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Unal, U., Matsumoto, Y., & Ida, S. (2007). Semiconductor layered oxides: Synthesis, properties and applications. In Progress in Solid State Chemistry Research (pp. 1-54). Nova Science Publishers, Inc..

Semiconductor layered oxides : Synthesis, properties and applications. / Unal, Ugur; Matsumoto, Yasumichi; Ida, Shintaro.

Progress in Solid State Chemistry Research. Nova Science Publishers, Inc., 2007. p. 1-54.

Research output: Chapter in Book/Report/Conference proceedingChapter

Unal, U, Matsumoto, Y & Ida, S 2007, Semiconductor layered oxides: Synthesis, properties and applications. in Progress in Solid State Chemistry Research. Nova Science Publishers, Inc., pp. 1-54.
Unal U, Matsumoto Y, Ida S. Semiconductor layered oxides: Synthesis, properties and applications. In Progress in Solid State Chemistry Research. Nova Science Publishers, Inc. 2007. p. 1-54
Unal, Ugur ; Matsumoto, Yasumichi ; Ida, Shintaro. / Semiconductor layered oxides : Synthesis, properties and applications. Progress in Solid State Chemistry Research. Nova Science Publishers, Inc., 2007. pp. 1-54
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