To deduce the location of absorptive inclusions in thin films, temperature distributions in pure TiO(2) films and TiO(2) films with high-absorptance inclusions are analyzed based on temperature field theory. According to our theoretic simulations, the surface temperature rise increases when absorptive inclusions are incorporated into thin films and shows different values for different inclusions. With the increase of inclusion thickness, the surface temperature rise varies and has a maximum value. A potential method is presented to deduce the location of absorptive inclusion through calculating the surface temperature rise at two modulated frequencies, if it is possible to know in advance the inclusion material or to prejudge this from a thin-film deposition process.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.49.000329 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Photoelectrochemical Performance of Brookite Titanium Dioxide Electrodeposited on Graphene Foam for Portable Biosensors.
ACS Omega
December 2024
Department of Chemistry, University of Bath, Claverton Down, Bath, England BA2 7AY, U.K.
We discuss the photoelectroanalytical performance of a brookite-phase titanium dioxide (TiO) platform electrodeposited onto graphene foam (GF) at low temperatures. The scalable electrosynthesis process eliminates the need for thermal annealing, which is impractical for carbon-based electrodes. Films resulting from a 10 min electrodeposition (TiO-10/GF) exhibit enhanced photocurrents, reaching 170 μA cm -twice the value for TiO films on traditional screen-printed carbon electrodes (82 μA cm ).
View Article and Find Full Text PDFStress-induced self-assembly of hierarchically twisted stripe arrays.
Sci Bull (Beijing)
December 2024
Department of Chemistry, Laboratory of Advance Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, and iChEM, Fudan University, Shanghai 200433, China. Electronic address:
Hierarchical organization is prevalent in nature, yet the artificial construction of hierarchical materials featuring asymmetric structures remains a big challenge. Herein, we report a stress-induced self-assembly strategy for the synthesis of hierarchically twisted stripe arrays (HTSAs) with mesoporous structures. A soft and thin mesostructured film assembled by micelles and TiO oligomers is the prerequisite.
View Article and Find Full Text PDFFacile Formation of Durable SiO-TiO Coatings on Plastic Films for Self-Cleaning and Antifogging.
ACS Appl Mater Interfaces
January 2025
CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.
Surface fogging affects the light transmittance of various transparent materials and poses potential safety hazards. Superhydrophilic TiO surfaces can effectively prevent fogging by promoting continuous water film formation; however, they often struggle to maintain stable hydrophilicity and adhesion on plastic films. Self-cleaning and antifogging coatings on plastic substrates are crucial for applications requiring long-term clarity and minimal maintenance costs.
View Article and Find Full Text PDFCharacterizing the stability of ultra-thin metal oxide catalyst films in non-thermal plasma CO reduction reactions.
Nanoscale Adv
December 2024
Department of Chemistry and Biochemistry, University of Arkansas Fayetteville AR 72701 USA
The use of metal oxide catalysts to enhance plasma CO reduction has seen significant recent development towards processes to reduce greenhouse gas emissions and produce renewable chemical feedstocks. While plasma reactors are effective at producing the intended chemical transformations, the conditions can result in catalyst degradation. Atomic layer deposition (ALD) can be used to synthesize complex, hierarchically structured metal oxide plasma catalysts that, while active for plasma CO reduction, are potentially vulnerable to degradation due to their high surface area and nanoscopic thickness.
View Article and Find Full Text PDFImproving Visible Light Photocatalysis Using Optical Defects in CoO-TiO Photonic Crystals.
Materials (Basel)
December 2024
Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, University Campus, 15784 Athens, Greece.
The rational design of photonic crystal photocatalysts has attracted significant interest in order to improve their light harvesting and photocatalytic performances. In this work, an advanced approach to enhance slow light propagation and visible light photocatalysis is demonstrated for the first time by integrating a planar defect into CoO-TiO inverse opals. Trilayer photonic crystal films were fabricated through the successive deposition of an inverse opal TiO underlayer, a thin titania interlayer, and a photonic top layer, whose visible light activation was implemented through surface modification with CoO nanoscale complexes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!