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Solar Energy Conversion and Information Interpretation Based on Novel Nanotechnologies

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 986

Special Issue Editors


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Guest Editor
School of Science, Wuhan University of Technology, Wuhan 430070, China
Interests: nanomaterials synthesis; photodetectors; solar cells; fabrication of plasmonic nanostructures; pyroelectric thin films; nanocomposites for pyroelectric energy harvesting
Special Issues, Collections and Topics in MDPI journals
School of Science, Wuhan University of Technology, Wuhan 430070, China
Interests: low-dimensional optoelectronic materials; solar cells; photodetectors

Special Issue Information

Dear Colleagues,

With the technical explosion during recent decades, energy consumption has become a critical issue for economic globalization, accelerating the development of clean energy conversion. Solar energy is a type of clean source with abundant information (i.e., polarization, frequency, and intensity) that has attracted significant research interest for facing the energy crisis. Nanotechnologies for the generation, processing, and fabrication of materials offer an alternative approach for the efficient utilization of solar energy, rendering wide applications, i.e., solar cells, photodetection, photocatalysis, etc. The selected papers for this issue will include, but are not limited to, nanomaterials synthesis, energy conversion, material property investigation, and the applications of low-dimensional materials.

Prof. Dr. Ming-Yu Li
Dr. Sisi Liu
Guest Editors

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Keywords

  • catalytic materials and applications
  • solar cells
  • photodetection
  • materials synthesis and characterizations
  • materials theory and principles
  • nanostructures and nanomaterials
  • optoelectronic materials
  • photovoltaics photocatalysis materials
  • plasmonics and applications
  • sensors and applications

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Published Papers (1 paper)

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Research

10 pages, 2772 KiB  
Article
Carbon Nanosphere-Based TiO2 Double Inverse Opals
by Dániel Attila Karajz, Kincső Virág Rottenbacher, Klára Hernádi and Imre Miklós Szilágyi
Molecules 2025, 30(2), 205; https://doi.org/10.3390/molecules30020205 - 7 Jan 2025
Viewed by 562
Abstract
Inverse opals (IOs) are intensively researched in the field of photocatalysis, since their optical properties can be fine-tuned by the initial nanosphere size and material. Another possible route for photonic crystal programming is to stack IOs with different pore sizes. Accordingly, single and [...] Read more.
Inverse opals (IOs) are intensively researched in the field of photocatalysis, since their optical properties can be fine-tuned by the initial nanosphere size and material. Another possible route for photonic crystal programming is to stack IOs with different pore sizes. Accordingly, single and double IOs were synthesized using vertical deposition and atomic layer deposition. In the case of the double IOs, the alternating use of the two preparation methods was successfully performed. Hydrothermally synthesized 326 and 458 nm carbon nanospheres were utilized to manufacture two different IOs; hence the name 326 nm and 458 nm IOs. Heat treatment removed the sacrificial template carbon nanospheres, and the as-deposited TiO2 crystallized upon annealing into nanocrystalline anatase form. Reflectance mode UV–visible spectroscopy showed that most IOs had photonic properties, i.e., a photonic band gap, and by the “slow” photon effect enhanced absorbance, except the 326 nm IO, even though it also had an increase in absorbance. The IOs were tested by photocatalytic degradation of Rhodamine 6-G under visible light. Photocatalytic experiments showed that the 458 nm IO was more active and the double IOs showed higher efficiency compared to monolayers, even if the less effective 326 nm IO was the top layer. Full article
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