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5th Anniversary of Applied Chemistry Section

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 270

Special Issue Editor

Special Issue Information

Dear Colleagues,

Molecules will reach a remarkable milestone with the 5th year of its Applied Chemistry section in 2025; to celebrate this special occasion we have launched a Special Issue devoted to the section, entitled “5th Anniversary of Applied Chemistry Section”.

This Special Issue is devoted to providing an overview of recent advancements in the field of applied chemistry; research topics include, but are not limited to, the following:

  • Sustainable and green chemistry;
  • Analytical methods and techniques;
  • Advanced materials and applications;
  • Energy storage and conversion;
  • Drug discovery and delivery;
  • Solar energy usage and technology;
  • Molecular engineering and nanotechnology;
  • Low-carbon and de-carbon technology;
  • Fine chemistry and chemicals;
  • Applied electrochemistry;
  • Membrane science and separation;
  • Data-driven approaches for applied chemistry.

Original research articles, review articles, and state-of-the-art communications are welcome.

Prof. Dr. Shaojun Yuan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • applied chemistry
  • new molecules and natural materials
  • solar energy and photo-electro-catalysis
  • analytical methods and techniques
  • electrochemistry and energy
  • biodegradable materials and medicines
  • environment and green chemistry

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

17 pages, 6706 KiB  
Article
Enhanced Efficiency and Stability of Perovskite Solar Cells Through Neodymium-Doped Upconversion Nanoparticles with TiO2 Coating
by Masfer Alkahtani, Bayan Alshehri, Hadeel Alrashood, Latifa Alshehri, Yahya A. Alzahrani, Sultan Alenzi, Ibtisam S. Almalki, Ghazal S. Yafi, Abdulmalik M. Alessa, Faisal S. Alghannam, Abdulaziz Aljuwayr, Nouf K. AL-Saleem, Anwar Alanazi and Masud Almalki
Molecules 2025, 30(10), 2166; https://doi.org/10.3390/molecules30102166 - 14 May 2025
Viewed by 173
Abstract
This study presents an effective strategy to enhance the efficiency and stability of perovskite solar cells (PSCs) by integrating neodymium-doped upconversion nanoparticles (UCNPs) coated with a TiO2 shell into the mesoporous electron transport layer. The incorporation of neodymium (Nd3+) as [...] Read more.
This study presents an effective strategy to enhance the efficiency and stability of perovskite solar cells (PSCs) by integrating neodymium-doped upconversion nanoparticles (UCNPs) coated with a TiO2 shell into the mesoporous electron transport layer. The incorporation of neodymium (Nd3+) as a novel sensitizer shifts the near-infrared (NIR) absorption band away from the water vapor absorption region in the solar spectrum. This modification enables UCNPs to efficiently convert NIR light into ultraviolet (UV) and blue wavelengths, which are readily absorbed by TiO2, generating additional charge carriers and improving photovoltaic performance. The optimized PSCs, fabricated by blending 30% UCNPs@TiO2 with commercial TiO2 paste, achieved a peak power conversion efficiency (PCE) of 21.71%, representing a 20.4% improvement over the control (18.04%). This enhancement included a 0.9% increase in the open-circuit voltage (Voc), a 6.6% rise in the short-circuit current density (Jsc), and an 11.9% boost in the fill factor (FF). Additionally, the optimized PSCs exhibited remarkable stability, retaining over 90% of their initial PCE after 900 h in humid conditions, compared to only 70% for the control. These improvements result from enhanced light absorption, reduced moisture infiltration, and lower defect-related recombination. This approach provides a promising pathway for developing highly efficient and durable PSCs. Full article
(This article belongs to the Special Issue 5th Anniversary of Applied Chemistry Section)
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