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Advanced and Smart Materials in Photoelectric Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Physics".

Deadline for manuscript submissions: 20 March 2025 | Viewed by 823

Special Issue Editors

Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China
Interests: micro and nano processing technology of liquid crystal composites and preparation of photoelectric devices; liquid crystal/polymer composites
Special Issues, Collections and Topics in MDPI journals
Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China
Interests: polymer dispersed liquid crystal films with wide temperature range and wide viewing angle for automobile; electric control color changing smart film for camouflage; anti-counterfeiting traceability materials and technologies
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China
Interests: molecular design and preparation of liquid crystal materials; preparation and properties of liquid crystal/nano-composite materials
Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China
Interests: liquid crystal; polymer; display devices; optics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue, entitled “Advanced and Smart Materials in Photoelectric Applications”, aims to collect research on recent advances in material science toward photoelectric applications. At present, photoelectric devices have widespread applications in our daily lives. With the rapid development of application scenarios, the miniaturization, integration, and multi-functionalization of devices are required. Thus, novel functional materials as well as cost-efficient fabrication methods will maintain sustained and rapid development in the coming years. For the following Special Issue, we welcome submissions on any advances concerning the materials and micro/nanotechnology used for the varying types of photoelectric applications. The scope of this Special Issue includes, but is not limited to, the following topics:

Organic or inorganic materials for FETs, solar cells, and LEDs, such as perovskite materials, organic single crystals, conducting polymers, etc.;

Novel applications of functional materials, such as smart sensors, flexible photoelectric devices, wearable/implantable devices, novel displays, dimming films, smart windows, etc.;

Novel fabrication and patterning methods for photoelectric devices, such as 3D printing, lithography, inkjet printing, imprinting technology, etc.

Dr. Cheng Zou
Dr. Yanzi Gao
Dr. Qian Wang
Dr. Meina Yu
Guest Editors

Manuscript Submission Information

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Keywords

  • photoelectric applications
  • flexible electronic devices
  • semiconducting materials
  • functional materials
  • patterning

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Published Papers (1 paper)

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Research

12 pages, 2433 KiB  
Article
High-Performance Sol–Gel-Derived CNT-ZnO Nanocomposite-Based Photodetectors with Controlled Surface Wrinkles
by Hee-Jin Kim, Seung Hun Lee, Dabin Jeon and Sung-Nam Lee
Materials 2024, 17(21), 5325; https://doi.org/10.3390/ma17215325 - 31 Oct 2024
Viewed by 530
Abstract
We investigate the effects of incorporating single-walled carbon nanotubes (CNTs) into sol–gel-derived ZnO thin films to enhance their optoelectronic properties for photodetector applications. ZnO thin films were fabricated on c-plane sapphire substrates with varying CNT concentrations ranging from 0 to 2.0 wt%. Characterization [...] Read more.
We investigate the effects of incorporating single-walled carbon nanotubes (CNTs) into sol–gel-derived ZnO thin films to enhance their optoelectronic properties for photodetector applications. ZnO thin films were fabricated on c-plane sapphire substrates with varying CNT concentrations ranging from 0 to 2.0 wt%. Characterization techniques, including high-resolution X-ray diffraction, photoluminescence, and atomic force microscopy, demonstrated the preferential growth of the ZnO (002) facet and improved optical properties with the increase in the CNT content. Electrical measurements revealed that the optimal CNT concentration of 1.5 wt% resulted in a significant increase in the dark current (from 0.34 mA to 1.7 mA) and peak photocurrent (502.9 µA), along with enhanced photoresponsivity. The rising and falling times of the photocurrent were notably reduced at this concentration, indicating improved charge dynamics due to the formation of a p-CNT/n-ZnO heterojunction. The findings suggest that the incorporation of CNTs not only modifies the structural and optical characteristics of ZnO thin films but also significantly enhances their electrical performance, positioning CNT-ZnO composites as promising candidates for advanced photodetector technologies in optoelectronic applications. Full article
(This article belongs to the Special Issue Advanced and Smart Materials in Photoelectric Applications)
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