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Nanomaterials
Special Issues
Nanomaterials for Photodetector and Photovoltaic Applications
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Nanomaterials for Photodetector and Photovoltaic Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 2441

Special Issue Editor

Prof. Dr. Bo-Tau Liu

E-Mail Website
Guest Editor
Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
Interests: optical film; photovoltaics; optoelectronic materials; nanomaterials; colloidal and interface science; environmental catalysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, photoactive and photovoltaic technologies have progressed in efficiency, fabrication and stability. The utilization of nanomaterials provides opportunities to significantly enhance the performance of the device such as through light scattering, light absorption, carrier collection efficiency, power conversion efficiency, reliability, etc. A key common factor for the recent breakthroughs in these devices is the development of novel nanomaterials as an active layer or effective electron/hole transport layer. Especially through the utilization/functionalization of nanomaterials for surface passivation, interface engineering has enhanced their stability and efficiencies in both photodetectors and photovoltaics via enhanced carrier collection efficiency and photocurrent generation.

Thus, the scope of this Special Issue on “Nanomaterials for Photodetector and Photovoltaic Applications” is to provide a comprehensive research outlining progress on the application of nanomaterials and nanostructures to enhance the performance and stability of photodetectors or photovoltaics. We invite authors to contribute original research articles and review articles covering recent findings and current developments on nanomaterials and nanostructures for photodetector and solar cells. Potential topics include, but are not limited to:

  • Metal–organic framework (MOF);
  • Perovskite materials;
  • New charge carriers (electron/hole);
  • Development of dopants to enhance stability;
  • Passivation and interface engineering.

Prof. Dr. Bo-Tau Liu
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 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. Nanomaterials 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 2900 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

  • solar cells
  • photodetector
  • nanomaterials
  • efficiency
  • stability

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Published Papers (1 paper)

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Research

12 pages, 2327 KiB  
Article
Self-Powered Sb2Te3/MoS2 Heterojunction Broadband Photodetector on Flexible Substrate from Visible to Near Infrared
by Hao Wang, Chaobo Dong, Yaliang Gui, Jiachi Ye, Salem Altaleb, Martin Thomaschewski, Behrouz Movahhed Nouri, Chandraman Patil, Hamed Dalir and Volker J. Sorger
Nanomaterials 2023, 13(13), 1973; https://doi.org/10.3390/nano13131973 - 29 Jun 2023
Cited by 15 | Viewed by 2117
Abstract
Van der Waals (vdWs) heterostructures, assembled by stacking of two-dimensional (2D) crystal layers, have emerged as a promising new material system for high-performance optoelectronic applications, such as thin film transistors, photodetectors, and light-emitters. In this study, we showcase an innovative device that leverages [...] Read more.
Van der Waals (vdWs) heterostructures, assembled by stacking of two-dimensional (2D) crystal layers, have emerged as a promising new material system for high-performance optoelectronic applications, such as thin film transistors, photodetectors, and light-emitters. In this study, we showcase an innovative device that leverages strain-tuning capabilities, utilizing a MoS2/Sb2Te3 vdWs p-n heterojunction architecture designed explicitly for photodetection across the visible to near-infrared spectrum. These heterojunction devices provide ultra-low dark currents as small as 4.3 pA, a robust photoresponsivity of 0.12 A W−1, and reasonable response times characterized by rising and falling durations of 0.197 s and 0.138 s, respectively. These novel devices exhibit remarkable tunability under the application of compressive strain up to 0.3%. The introduction of strain at the heterojunction interface influences the bandgap of the materials, resulting in a significant alteration of the heterojunction’s band structure. This subsequently shifts the detector’s optical absorption properties. The proposed strategy of strain-induced engineering of the stacked 2D crystal materials allows the tuning of the electronic and optical properties of the device. Such a technique enables fine-tuning of the optoelectronic performance of vdWs devices, paving the way for tunable high-performance, low-power consumption applications. This development also holds significant potential for applications in wearable sensor technology and flexible electro-optic circuits. Full article
(This article belongs to the Special Issue Nanomaterials for Photodetector and Photovoltaic Applications)
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