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Recent Advances in Opto-Electronic Materials
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Recent Advances in Opto-Electronic Materials

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

Deadline for manuscript submissions: closed (23 August 2023) | Viewed by 4375

Special Issue Editors

Prof. Dr. Haotong Wei

grade E-Mail Website
Guest Editor
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Interests: perovskite; photodetector; radiation detector; supramolecular
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yang Zhang

E-Mail Website
Guest Editor
Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
Interests: biosensors; photodetectors; sensors; nanofabrication; nanoelectronics; integrated photonics; semiconductor devices; semiconductor physics
Special Issues, Collections and Topics in MDPI journals
Dr. Wei Wei

E-Mail Website
Guest Editor
College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
Interests: perovskite; X-ray imaging; linear imager; optoelectronic devices; polymers

Special Issue Information

Dear Colleagues,

Optoelectronic devices play an indispensable role in the scientific, civil, and defense fields. Advanced materials are used in optoelectronic applications covering various fields, such as photovoltaics, photodetection, photocatalysis, etc. Meanwhile, different methods or material structures may introduce a new degree of freedom for manipulating their physical and chemical properties, and may serve as a tool to help further boost the performance of optoelectronic devices. Coverage also extends from research into the fundamental properties of light and how it interacts with matter, through to the latest designs of optoelectronic devices and emerging applications that exploit photons.

Prof. Dr. Haotong Wei
Dr. Yang Zhang
Dr. Wei Wei
Guest Editors

Manuscript Submission Information

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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

  • perovskites
  • quantum dots
  • polymers
  • optoelectronic materials
  • electrons
  • energy conversion
  • photoluminescence
  • display
  • photodetectors
  • solar cells
  • field-effect transistors

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Published Papers (2 papers)

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Research

13 pages, 3668 KiB  
Article
An All-Solid-State Flexible Supercapacitor Based on MXene/MSA Ionogel and Polyaniline Electrode with Wide Temperature Range, High Stability, and High Energy Density
by Feng Pan, Shuang Wang, Zhipeng Yong, Xiaodong Wang, Chenglong Li, Dan Liang, Xiaorui Wang, Han Sun, Yinghe Cui and Zhe Wang
Molecules 2023, 28(4), 1554; https://doi.org/10.3390/molecules28041554 - 6 Feb 2023
Cited by 6 | Viewed by 2130
Abstract
In this study, an ionogel electrolyte (PAIM-X) consisting of 1-vinyl-3-methylimidazole bis (trifluoromethyl sulfonyl) imide ([VMIM][TFSI]), Polyacrylamide (PAAm), and MXene were prepared. The conductivity of PAIM-X and integral area of the voltammetric curve of the supercapacitor (PAIMSC) were improved by adding MXene. The addition [...] Read more.
In this study, an ionogel electrolyte (PAIM-X) consisting of 1-vinyl-3-methylimidazole bis (trifluoromethyl sulfonyl) imide ([VMIM][TFSI]), Polyacrylamide (PAAm), and MXene were prepared. The conductivity of PAIM-X and integral area of the voltammetric curve of the supercapacitor (PAIMSC) were improved by adding MXene. The addition of [VMIM][TFSI] enhanced the conductivity and applicable temperature of the ionogel electrolyte. At 90 °C, the conductivity of PAIM-4 can reach 36.4 mS/cm. In addition, spherical polyaniline with good electrochemical properties was synthesized and coated on graphite paper as an active substance. An all-solid-state supercapacitor was composed of PAIM-4, polyaniline electrode with 1.2 V potential window, pseudo-capacitors and high quality capacitors. The solvent 1-ethyl-3-methylimidazolium bis (trifluoromethyl sulfonyl imide) ([EMIM][TFSI]) and methanesulfonic acid (MSA) were introduced into the ionogel to promote the redox reaction of polyaniline (PANI). The mass specific capacitance of PAIMSC was 204.6 F/g and its energy density could reach 40.92 Wh/kg, which shows great potential for practical application at high temperature. The device had good rate performance and cycle performance, and its capacitance retention rate was still 91.56% after 10,000 cycles. In addition, the supercapacitor can work within the temperature range of −20 °C to 90 °C. These excellent electrochemical properties indicate that PAAm/IL/Mxene-X has broad application space and prospect. Full article
(This article belongs to the Special Issue Recent Advances in Opto-Electronic Materials)
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14 pages, 3990 KiB  
Article
Nanocrystalline Skinnerite (Cu3SbS3) Prepared by High-Energy Milling in a Laboratory and an Industrial Mill and Its Optical and Optoelectrical Properties
by Erika Dutková, María Jesús Sayagués, Martin Fabián, Matej Baláž, Jaroslav Kováč, Jaroslav Kováč Junior, Martin Stahorský, Marcela Achimovičová and Zdenka Lukáčová Bujňáková
Molecules 2023, 28(1), 326; https://doi.org/10.3390/molecules28010326 - 31 Dec 2022
Cited by 6 | Viewed by 1657
Abstract
Copper, antimony and sulfur in elemental form were applied for one-pot solid-state mechanochemical synthesis of skinnerite (Cu3SbS3) in a laboratory mill and an industrial mill. This synthesis was completed after 30 min of milling in the laboratory mill and [...] Read more.
Copper, antimony and sulfur in elemental form were applied for one-pot solid-state mechanochemical synthesis of skinnerite (Cu3SbS3) in a laboratory mill and an industrial mill. This synthesis was completed after 30 min of milling in the laboratory mill and 120 min in the industrial mill, as corroborated by X-ray diffraction. XRD analysis confirmed the presence of pure monoclinic skinnerite prepared in the laboratory mill and around 76% monoclinic skinnerite, with the secondary phases famatinite (Cu3SbS4; 15%), and tetrahedrite (Cu11.4Sb4S13; 8%), synthesized in the industrial mill. The nanocrystals were agglomerated into micrometer-sized grains in both cases. Both samples were nanocrystalline, as was confirmed with HRTEM. The optical band gap of the Cu3SbS3 prepared in the laboratory mill was determined to be 1.7 eV with UV–Vis spectroscopy. Photocurrent responses verified with I–V measurements under dark and light illumination and Cu3SbS3 nanocrystals showed ~45% enhancement of the photoresponsive current at a forward voltage of 0.6 V. The optical and optoelectrical properties of the skinnerite (Cu3SbS3) prepared via laboratory milling are interesting for photovoltaic applications. Full article
(This article belongs to the Special Issue Recent Advances in Opto-Electronic Materials)
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