Application of WO3 thin films for enhancement of photolysis in AgCl

Gavrilyuk, Alexander

doi:10.1016/j.solmat.2009.07.003

Cited by 12 publications

(8 citation statements)

References 61 publications

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“…Only one paper [232] reports tungsten oxide included in a fluoro-polymer matrix but yield a modest photochromic response. The photochromic properties of these oxides can be modified by interaction with species such as CdS NPs, [233] Ag [234] /Cu [227] species, TiO 2 , [235,236] silica, [237] or cellulose. [238] These nanocomposite materials are not strictly hybrid organic-inorganic materials, so these issues are out of the scope of this manuscript.…”

Section: Q8mentioning

confidence: 99%

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Parola

Julián‐López

Carlos

et al. 2016

Adv Funct Materials

249

116

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Research on hybrid inorganic‐organic materials has experienced an explosive growth since the 1980s, with the expansion of soft inorganic chemistry based processes. Indeed, mild synthetic conditions, low processing temperatures provided by “chimie douce” and the versatility of the colloidal state allow for the mixing of the organic and inorganic components at the nanometer scale in virtually any ratio to produce the so called hybrid materials. Today a high degree of control over both composition and nanostructure of these hybrids can be achieved allowing tunable structure‐property relationships. This, in turn, makes it possible to tailor and fine‐tune many properties (mechanical, optical, electronic, thermal, chemical…) in very broad ranges, and to design specific multifunctional systems for applications. In particular, the field of “Hybrid‐Optics” has been very productive not only scientifically but also in terms of applications. Indeed, numerous optical devices based on hybrids are already in, or very close, to the market. This review describes most of the recent advances performed in this field. Emphasis will be given to luminescent, photochromic, NLO and plasmonic properties. As an outlook we show that the controlled coupling between plasmonics and luminescence is opening a land of opportunities in the field of “Hybrid‐Optics”.

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Section: Q8mentioning

confidence: 99%

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Parola

Julián‐López

Carlos

et al. 2016

Adv Funct Materials

249

116

View full text Add to dashboard Cite

show abstract

“…The typical schematic of the electron energy band diagram, which is valid also in the present case, is presented in [11].…”

Section: Properties Of Wo 3 Disordered Filmsmentioning

confidence: 85%

“…The atomic force microscope investigations showed that the WO 3 films deposited onto unheated substrates were be nanocomposites [9,11], whereas the absence of long-range order was confirmed by X-ray analyses. For this reason, the films can be characterized as ''quasi-amorphous''.…”

Section: Properties Of Wo 3 Disordered Filmsmentioning

confidence: 93%

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Nanosized WO3 thin film as a multifunctional hydrogen material for achieving photolysis in CuCl films via hydrogen photosensitization

Gavrilyuk

2010

Solar Energy Materials and Solar Cells

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“…The narrow band gap of 2.20 -2.80 eV helps in absorption of ultraviolet region and blue region of visible light in solar spectrum [22][23][24][25]. Furthermore, WO 3 has been investigated with the aim of improving catalyst activity and stability in the irradiated aqueous environment [26][27][28][29]. Tungsten trioxide powders prepared from various W precursors has been studied by Bamwenda and Arakawa [30].…”

Section: Ng Et Al: Fabrication and Characterization Of Fe-doped Tungsmentioning

confidence: 99%

FABRICATION AND CHARACTERIZATION OF Fe-DOPED TUNGSTEN TRIOXIDE PHOTOELECTRODES IN AQUEOUS MEDIUM USING TUNGSTIC ACID AND FERROCENE AS STARTING MATERIALS

Hang

Jaafar

Minggu³

et al. 2016

MJAS

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Different compositions of Fe-doped tungsten trioxide thin films were synthesized on fluorine-doped tin oxide (FTO) glass substrate by sol-gel method, with ferrocene and tungstic acid as starting materials. The synthesized thin films was characterized with X-ray diffraction (XRD), scanning electron microscope (SEM), UV/Vis spectrophotometer and photoelectrochemical (PEC) analysis. The results show that the surface morphology of the thin films became rough and the grain size increased along with the concentration of Fe. Monoclinic structure of tungsten trioxide was obtained for all doped and undoped WO 3 and red-shift can be observed from UV-vis spectrum. Band gap reduced from 2.74 eV of undoped WO 3 thin films to 2.60 eV of 20 % Fe-doped WO 3 thin films. Photoactivities of all Fe-doped WO 3 are higher than undoped thin films. The highest photoactivities contributed by 5 % Fe-doped WO 3 films with photocurrent densities measured was 0.148 mA/cm 2 , which is 3 times higher compared to undoped WO 3 .Keywords: Fe-doped WO 3 , direct water splitting, photoelectrochemical cell, photoanode Abstrak Filem nipis tungsten trioksida terdop Fe berbagai komposisi telah disediakan di atas kaca substrat FTO (fluorine-doped tin oxide) dengan kaedah sol-gel, dengan menggunakan ferosin dan asid tingstik sebagai bahan pemula. Filem nipis yang terhasil kemudiannya dicirikan dengan pembelauan sinar X (XRD), mikroskopi elektron pengimbasan (SEM), UV/Vis spektrofotometer dan analisis fotoelektrokimia. Keputusan menunjukkan bahawa morfologi permukaan filem nipis menjadi kasar dan saiz butiran bertambah dengan penambahan kepekatan Fe. Tungsten trioksida yang berstruktur monoklinik telah dihasilkan dan anjakan merah telah diperhatikan di dalam spectrum UV-vis. Jurang tenaga telah berkurang dari 2.74 eV (WO 3 tulen) kepada 2.60 eV (20 % Fe-dop WO 3 ). Fotoaktiviti WO 3 terdop Fe adalah lebih tinggi berbanding WO 3 tulen. Fotoaktiviti yang tertinggi dicatatkan oleh filem 5 % WO 3 terdop Fe dengan ketumpatan fotoarus 0.148 mA/cm 2 . Ia adalah 3 kali ganda lebih tinggi berbanding WO 3 tulen.Kata kunci: Fe-dop WO 3 , pembelahan air secara langsung, sel fotoelektrokimia, fotoanod

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Application of WO3 thin films for enhancement of photolysis in AgCl

Cited by 12 publications

References 61 publications

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

Nanosized WO3 thin film as a multifunctional hydrogen material for achieving photolysis in CuCl films via hydrogen photosensitization

FABRICATION AND CHARACTERIZATION OF Fe-DOPED TUNGSTEN TRIOXIDE PHOTOELECTRODES IN AQUEOUS MEDIUM USING TUNGSTIC ACID AND FERROCENE AS STARTING MATERIALS

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