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Dye-Sensitized Solar Cells: Opportunities and Challenges

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

Deadline for manuscript submissions: closed (30 November 2020) | Viewed by 3037

Special Issue Editor


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Guest Editor
Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet Varennes, QC J3X 1S2, Canada
Interests: oxide semiconductors; colloidal quantum dots, carbon nanomaterials; two-dimensional materials; plasmonic nanoparticles; third generation photovoltaics; water splitting; photocatalysis; water purification; nanothermometry

Special Issue Information

Dear Colleagues,

The growing demand for energy in developing countries is causing the rapid depletion of fossil fuels and leading to environmental pollution. Thus, there is an urgent need to replace fossil fuels with renewable and environmentally clean energy sources. Among all available energy resources, solar energy is one of the most promising, reliable, clean, and affordable renewable sources, for several reasons. Third-generation photovoltaic technology represents a highly efficient and low-cost route to directly convert solar energy into electricity, to partially address current worldwide energy challenges and related environmental issues. Dye-sensitized solar cells have received considerable attention due to their promising features including their simple and low-cost fabrication process and environmentally friendly materials with different color selection and high transparency. In particular, high power conversion efficiency under diffuse light with acceptable stability and short-term energy payback highlights the potential of this promising solar cells technology from the large-scale commercialization point of view.

In this Special Issue, we warmly invite researchers to submit their novel contributions to the field of dye-sensitized solar cells. You can submit your work as a full paper, communication, or as a review that provides a comprehensive overview of the recent developments in this promising solar cell technology.

Dr. Gurpreet Singh Selopal
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

  • dye-sensitized solar cells
  • mesoporous wide bandgap semiconductors
  • redox couple electrolyte
  • light harvesters (e.g., organic or inorganic)
  • counter electrode
  • carrier recombination
  • transparent conducting oxide
  • long-term stability and reproducibility
  • semi- and solid-state solar cells

Published Papers (1 paper)

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Research

18 pages, 6854 KiB  
Article
Influence of Sputtering Temperature of TiO2 Deposited onto Reduced Graphene Oxide Nanosheet as Efficient Photoanodes in Dye-Sensitized Solar Cells
by Foo Wah Low, Goh Chin Hock, Muhammad Kashif, Nurul Asma Samsudin, Chien Fat Chau, Amaliyah Rohsari Indah Utami, Mohammad Aminul Islam, Cheng Yong Heah, Yun Ming Liew, Chin Wei Lai, Nowshad Amin and Sieh Kiong Tiong
Molecules 2020, 25(20), 4852; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules25204852 - 21 Oct 2020
Cited by 5 | Viewed by 2616
Abstract
Renewable solar energy is the key target to reduce fossil fuel consumption, minimize global warming issues, and indirectly minimizes erratic weather patterns. Herein, the authors synthesized an ultrathin reduced graphene oxide (rGO) nanosheet with ~47 nm via an improved Hummer’s method. The TiO [...] Read more.
Renewable solar energy is the key target to reduce fossil fuel consumption, minimize global warming issues, and indirectly minimizes erratic weather patterns. Herein, the authors synthesized an ultrathin reduced graphene oxide (rGO) nanosheet with ~47 nm via an improved Hummer’s method. The TiO2 was deposited by RF sputtering onto an rGO nanosheet with a variation of temperature to enhance the photogenerated electron or charge carrier mobility transport for the photoanode component. The morphology, topologies, element composition, crystallinity as well as dye-sensitized solar cells’ (DSSCs) performance were determined accordingly. Based on the results, FTIR spectra revealed presence of Ti-O-C bonds in every rGO-TiO2 nanocomposite samples at 800 cm–1. Besides, XRD revealed that a broad peak of anatase TiO2 was detected at ~25.4° after incorporation with the rGO. Furthermore, it was discovered that sputtering temperature of 120 °C created a desired power conversion energy (PCE) of 7.27% based on the J-V plot. Further increase of the sputtering temperature to 160 °C and 200 °C led to excessive TiO2 growth on the rGO nanosheet, thus resulting in undesirable charge recombination formed at the photoanode in the DSSC device. Full article
(This article belongs to the Special Issue Dye-Sensitized Solar Cells: Opportunities and Challenges)
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