Special Issue "Organic Solar Cells"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Solar Energy and Photovoltaic Systems".

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editor

Dr. Minas M. Stylianakis
Website
Guest Editor
Institute of Electronic Structure & Laser (IESL), Foundation for Research and Technology - Hellas (FORTH), 100, N. Plastira Str., Vasilika Vouton, 711 10 Heraklion Crete, Greece
Interests: graphene; 2D nanomaterials; biomaterials; metal oxides; materials science; chemistry; energy devices; organic photovoltaics; perovskite solar cells; energy storage; water technologies
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Special Issue Information

Dear Colleagues,

During the last two decades, significant research effort has been undertaken regarding the development and progress of organic solar cells (OSCs) towards the boost of their competitiveness in relation to silicon technology. Owing to several attractive properties, including light weight, flexibility, low manufacturing costs, and compatibility with large-area printing processes, OSCs are considered one of the most prominent photovoltaic technologies for sustainable energy production. Very recently, alternative approaches such as tandem structures, dye sensitized solar cells (DSSCs), ternary systems, new donors, and fullerene free acceptors design and synthesis have skyrocketed the performance of OSCs by over 15%.

The present Special Issue of Energies focuses on new insights and approaches, as well as the potential improvement of the overall stability and performance of lab or larger scale OSCs. In this context, we invite researchers to submit original research articles, communications, as well as review and perspective articles, on fundamental studies and findings of OSCs, related to device engineering optimization and novel materials design and synthesis/modification (small molecules, polymers, 2D nanomaterials, metal oxides, dyes, etc.) for stronger light harvesting, improved carriers’ mobilities and charge transfer, energy levels control, energy loss reduction, and better layers’ morphology.

Potential topics include but are not limited to the following:

  • OSCs (normal/inverted structure);
  • DSSCs;
  • Tandem solar cells;
  • Ternary solar cells;
  • OSCs incorporating 2D nanomaterials;
  • Electrode materials;
  • Upscaling.

Dr. Minas M. Stylianakis
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 papers will be 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. Energies 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 2000 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

  • OSCs
  • DSSCs
  • tandem
  • ternary
  • bulk heterojunction
  • bilayer
  • charge/energy transfer
  • buffer layers
  • solution-processed
  • photovoltaic performance
  • stability
  • additives
  • device engineering optimization
  • upscaling

Published Papers (2 papers)

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Open AccessArticle
Determining the Effect of Different Heat Treatments on the Electrical and Morphological Characteristics of Polymer Solar Cells
Energies 2019, 12(24), 4678; https://doi.org/10.3390/en12244678 - 09 Dec 2019
Cited by 1
Abstract
The device characteristics of polymer solar cells can be improved through an annealing process. This is especially true of the carrier mobility and the light absorption of P3HT:PCBM, which improves considerably after the annealing process. In the standard structure using indium-tin-oxide (ITO) as [...] Read more.
The device characteristics of polymer solar cells can be improved through an annealing process. This is especially true of the carrier mobility and the light absorption of P3HT:PCBM, which improves considerably after the annealing process. In the standard structure using indium-tin-oxide (ITO) as an anode, most studies have focused on the post-annealing process, where thermal annealing is performed after device fabrication. This work reports the effects of different annealing methods for inverted polymer solar cells, using ITO as a cathode. Similar levels of light absorption and P3HT crystallinity were obtained regardless of the annealing procedure in the inverted structure. However, compared with the post-annealed device, the pre-annealed device, which was thermally annealed after deposition of the P3HT:PCBM film, exhibited better charge extraction, owing to the superior device resistances and larger MoO3 grain size. Therefore, the pre-annealing method yields better performance than the post-annealing method. Full article
(This article belongs to the Special Issue Organic Solar Cells)
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Open AccessLetter
Benzothiadiazole Based Cascade Material to Boost the Performance of Inverted Ternary Organic Solar Cells
Energies 2020, 13(2), 450; https://doi.org/10.3390/en13020450 - 17 Jan 2020
Cited by 2
Abstract
A conjugated, ladder-type multi-fused ring 4,7-dithienbenzothiadiazole:thiophene derivative, named as compound ‘T’, was for the first time incorporated, within the PTB7:PC71BM photoactive layer for inverted ternary organic solar cells (TOSCs) realization. The effective energy level offset caused by compound T between the [...] Read more.
A conjugated, ladder-type multi-fused ring 4,7-dithienbenzothiadiazole:thiophene derivative, named as compound ‘T’, was for the first time incorporated, within the PTB7:PC71BM photoactive layer for inverted ternary organic solar cells (TOSCs) realization. The effective energy level offset caused by compound T between the polymeric donor and fullerene acceptor materials, as well as its resulting potential as electron cascade material contribute to an enhanced exciton dissociation, electron transfer facilitator and thus improved overall photovoltaic performance. The engineering optimization of the inverted TOSC, ITO/PFN/PTB7:Compound T(5% v/v):PC71BM/MoO3/Al, resulted in an overall power conversion efficiency (PCE) of 8.34%, with a short-circuit current density (Jsc) of 16.75 mA cm−2, open-circuit voltage (Voc) of 0.74 V and a fill factor (FF) of 68.1%, under AM1.5G illumination. This photovoltaic performance was improved by approximately 12% with respect to the control binary device. Full article
(This article belongs to the Special Issue Organic Solar Cells)
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