Recent Development of Semiconductor Nanocrystals

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanofabrication and Nanomanufacturing".

Deadline for manuscript submissions: closed (26 October 2023) | Viewed by 1284

Special Issue Editors


E-Mail Website
Guest Editor
Department of Physics, Beijing Normal University, Beijing, China
Interests: nanophotonics; plasmonics; on-chip micro-lasers; single-photon sources; metasurfaces; nano-waveguides; sensors; micro-fabrications
Mechanical Engineering Faculty, Technion—Israel Institute of Technology, Haifa, Israel
Interests: spinoptics; metasurfaces; nanophotonics; micro/nano-lasers; low-dimensional materials; photonic crystals; bound states in the continuum; topological photonics; quantum light sources; plasmonics
State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
Interests: spintronics; nanophotonics; low-dimensional systems; optoelectronics; colloidal semiconductor nanocrystals

Special Issue Information

Dear Colleagues,

Colloidal semiconductor nanocrystals, such as colloidal quantum dots (CQDs) and nanoplatelets, are promising candidates of nanoscale building blocks for solution-processed optoelectronic devices and integrated circuits. Their outstanding properties have led to quantum dots being widely used in the design of small optoelectronic, optical, and quantum devices, such as light-emitting diodes, displays, detectors, waveguides, micro-lasers, and single-photon sources. However, there is still plenty of room as well as challenges when it comes to the improvement of QDs and QD nanostructures. High-quality QDs of non-blinking phenomena and long photostability under high pumping intensities are essential for micro/nano-optical and quantum devices. Although there are already continuous-wave pumping CQD lasers and electrical pumping optical gains from CQDs, on-chip (especially functional) CQD micro-lasers still rely heavily on excitation by short pulses. Most micro-fabrication technologies cause damage to QDs. Thus, it is incredibly important to develop novel micro-fabrication technologies which do not damage QDs and may be compatible with other materials, especially for metals and semiconductors. Photon emissions from QDs are usually inherently omnidirectional and randomly polarized, which seriously limits their applications in single-photon sources. Efforts should focus on developing novel physical mechanisms and designing various nanostructures to shape QD emissions, such as directions, polarizations, wave fronts, emission enhancement, and patterns.

Prof. Dr. Jianjun Chen
Dr. Kexiu Rong
Dr. Yunan Gao
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. 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

  • quantum dots
  • non-blinking
  • micro-lasers
  • single-photon emissions
  • emission shaping
  • emission enhancement
  • electrical pumping
  • compatible fabrications
  • detectors
  • waveguides

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Review

22 pages, 12294 KiB  
Review
Field Manipulations in On-Chip Micro/Nanoscale Lasers Based on Colloid Nanocrystals
by Yazhou Gu, Zhengmei Yang and Zhitong Li
Nanomaterials 2023, 13(23), 3069; https://doi.org/10.3390/nano13233069 - 3 Dec 2023
Cited by 1 | Viewed by 1042
Abstract
Owning to merits such as bandgap tunability, solution processability, large absorption coefficients, and high photoluminescence quantum yields, colloidal quantum dots (CQDs) emerged as a promising gain material to make on-chip micro/nanoscale lasers with high silicon compatibility. In this paper, we review the recent [...] Read more.
Owning to merits such as bandgap tunability, solution processability, large absorption coefficients, and high photoluminescence quantum yields, colloidal quantum dots (CQDs) emerged as a promising gain material to make on-chip micro/nanoscale lasers with high silicon compatibility. In this paper, we review the recent progress in CQD on-chip micro/nanoscale lasers, with a special focus on the physical properties achieved through field manipulation schemes in different types of cavities. Key aspects include manipulating and engineering wavelength, polarization, and direction as well as coupling and light extraction. Finally, we give our prospects for future research directions toward the integration of robust CQD nano/microscale lasers with photonic integrated circuits. Full article
(This article belongs to the Special Issue Recent Development of Semiconductor Nanocrystals)
Show Figures

Figure 1

Back to TopTop