Special Issue "Optoelectronic Functional Materials and Devices 2023"

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Materials for Energy Applications".

Deadline for manuscript submissions: closed (26 October 2023) | Viewed by 1185

Special Issue Editors

State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, China
Interests: optoelectronic materials and devices
State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, China
Interests: noble metal nanocrystals; quandum dots; perovskite nanocrystals; perovskite solar cell
Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
Interests: perovskite and CdS nanocrystals; photodetector; 2D patterning of nanomaterials
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
Interests: semiconductor optoelectronic materials and devices

Special Issue Information

Dear Colleagues,

It is our pleasure to announce a new Special Issue of Crystals devoted to optoelectronic functional materials and devices. New materials, new structures, and new manufacturing tools have allowed the development of novel high-performance electronic and optoelectronic devices. We expect that the continuous progress and cross-integration in these fields will continue to lead the development of optoelectronic theory and optoelectronic applications. This Special Issue will aim to cover the following topics:

Electronic, optical and structural properties of novel nanocrystal materials;

Physics and applications of novel devices based on perovskite materials;

Device physics and applications (LEDs, solar cells and photodetectors).;

Physics and applications of II-IV and III-V compound semiconductors for optoelectronics;

Advanced characterizations of the optical and optoelectronic properties of semiconductors.

The purpose of our Special Issue is to build a platform for scholars committed to, but not limited to, the above research fields to share and exchange scientific research.

Dr. Yongqiang Ji
Dr. Qixuan Zhong
Dr. Hengwei Qiu
Dr. Zhiwei Ma
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. Crystals is an international peer-reviewed open access monthly 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

  • LEDs
  • solar cells
  • nanocrystals
  • perovskite material
  • II-IV and III-V compound
  • advanced characterizations

Published Papers (1 paper)

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Research

11 pages, 4616 KiB  
Article
Enhanced Performances of Quantum Dot Light-Emitting Diodes with an Organic–Inorganic Hybrid Hole Injection Layer
Crystals 2023, 13(6), 966; https://doi.org/10.3390/cryst13060966 - 18 Jun 2023
Viewed by 843
Abstract
PEDOT:PSS (polyethylene dioxythiophene:polystyrenesulfonate) is a commonly used hole injection layer (HIL) in optoelectronic devices due to its high conductive properties and work function. However, the acidic and hygroscopic nature of PEDOT:PSS can be problematic for device stability over time. To address this issue, [...] Read more.
PEDOT:PSS (polyethylene dioxythiophene:polystyrenesulfonate) is a commonly used hole injection layer (HIL) in optoelectronic devices due to its high conductive properties and work function. However, the acidic and hygroscopic nature of PEDOT:PSS can be problematic for device stability over time. To address this issue, in this study we demonstrated the potential of an organic–inorganic hybrid HIL by incorporating solution-processed WOx nanoparticles (WOx NPs) into the PEDOT:PSS mixture. This hybrid solution was found to have a superior hole transport ability and low Ohmic contact resistance contributing to higher brightness (~62,000 cd m−2) and current efficiency (13.1 cd A−1) in the manufactured quantum-dot-based light-emitting diodes (QLEDs). In addition, the resulting devices achieved a relative operational lifetime of 7071 h, or approximately twice that of traditional QLEDs with PEDOT:PSS HILs. The proposed method is an uncomplicated, reliable, and low-cost way to achieve long operational lifetimes without sacrificing efficiency in optoelectronic devices. Full article
(This article belongs to the Special Issue Optoelectronic Functional Materials and Devices 2023)
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