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Emerging Technologies for Multijunction Solar Cells

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D2: Electrochem: Batteries, Fuel Cells, Capacitors".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1149

Special Issue Editors


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Guest Editor
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Interests: Multijunction solar cells; III–V semiconductors; semiconductor nanostructures; epitaxy; optoelectronics

E-Mail Website
Guest Editor
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Interests: Quantum dot perovskites hybrid solar cells; plasmas; quantum dots surface engineering; silicon perovskites tandem solar cells
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Special Issue Information

Dear Colleagues,

The importance of renewable energy has increased with the increased realization of a decarbonized society. Especially in photovoltaic (PV) power generation, tandem and multijunction solar cells that consist of stacks of two, three or more subcells have demonstrated potential for exceptionally high conversion efficiency. These technologies can open opportunities for new applications, such as building integrated PVs and their use in mobility and transportation systems, in addition to the conventional applications already in use today. Recent technological innovations in multijunction solar cells have made it possible to combine a variety of materials, such as silicon, chalcogenides, perovskites, organics, quantum dots, etc., in addition to conventional III–V semiconductors.

This Special Issue solicits papers related to the experimental and theoretical aspects of tandem and multijunction solar cells based on combinations of any kind of the aforementioned materials. Topics include material design and development, material/device-level characterization, processing, novel/unique architectures, stacking methods (monolithic, metamorphic, mechanical, wafer/layer bonding, etc.), and device reliability testing.

We hope that this Special Issue will help to deepen our understanding of solar cells and contribute to their further progress.

Dr. Ryuji Oshima
Dr. Vladimir Svrcek
Guest Editors

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. 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 2600 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

  • multijunction solar cells
  • tandem solar cells
  • materials for solar cells
  • nanomaterials for solar cells
  • semiconductors
  • organics
  • hybrid solar cells
  • tunnel junctions
  • bonding technologies
  • new concepts and technologies for multijunction solar cells
  • characterizations

Published Papers (1 paper)

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Research

14 pages, 5603 KiB  
Article
Effect of Interfacial Oxide Layers on Self-Doped PEDOT/Si Hybrid Solar Cells
by Aditya Saha, Ryuji Oshima, Daisuke Ohori, Takahiko Sasaki, Hirokazu Yano, Hidenori Okuzaki, Takashi Tokumasu, Kazuhiko Endo and Seiji Samukawa
Energies 2023, 16(19), 6900; https://doi.org/10.3390/en16196900 - 30 Sep 2023
Viewed by 833
Abstract
PEDOT:PSS/Si hybrid photovoltaic cells have been attracting attention as a potential way to simplify the manufacturing process and democratize solar energy production. Control of the PEDOT/Si interface is also one of the primary ways to ensure the improved performance and lifetimes of multijunction [...] Read more.
PEDOT:PSS/Si hybrid photovoltaic cells have been attracting attention as a potential way to simplify the manufacturing process and democratize solar energy production. Control of the PEDOT/Si interface is also one of the primary ways to ensure the improved performance and lifetimes of multijunction devices, such as perovskite/Si tandem solar cells. In this work, the effects of the interfacial silicon oxide layer were investigated by creating a novel and controllable neutral beam oxide interlayer with different thicknesses. A novel self-doped PEDOT (S-PEDOT) was used to improve interfacial contact and avoid the secondary doping of PEDOT:PSS. X-ray photoelectron spectroscopy (XPS) showed that the saturation of interfacial silicon atoms in SiOx-Si bonds as well as a very thin, (~1 nm) damage-free oxide interlayer were the keys to maintaining good passivation with a high tunneling current. Lifetime measurements also showed that the interlayers with the most SiO2 content degraded the least. The degradation of the devices was due to the continued growth of the oxide layer through reactions with silicon sub-oxides and the degradation of S-PEDOT. Full article
(This article belongs to the Special Issue Emerging Technologies for Multijunction Solar Cells)
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