Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

IR Spectrometers01:25

IR Spectrometers

3.1K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
3.1K
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences

1.7K
Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
1.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Colloidal Quantum Dot Thermistor and Bolometer.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Probing Intraband Carrier Dynamics in Degenerately N-Doped PbS Quantum Dots and Their Implications in Optoelectronic Devices.

The journal of physical chemistry letters·2026
Same author

Synthesis of monodisperse InSb colloidal quantum dots by monomer concentration control for short-wave infrared photodetectors.

Nature communications·2026
Same author

High Power, Efficient, and Stable Quantum Dot-Based Downconverters for SWIR Applications.

ACS photonics·2026
Same author

Enhancement of the Biexciton Binding Energy in Laterally Confined CdSe Nanoplatelets.

Nano letters·2025
Same author

Shortwave Infrared Light Detection and Ranging Using Silver Telluride Quantum Dots.

Advanced materials (Deerfield Beach, Fla.)·2025

Related Experiment Video

Updated: May 6, 2026

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications
07:42

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications

Published on: January 22, 2019

11.0K

Suppressing Colloidal Quantum Dot Multimer Fusion Leads to High-Performance InSb Infrared Photodetectors.

Lucheng Peng1, Yongjie Wang1, Carmelita Rodà1

  • 1ICFO-Insitut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, 08860, Spain.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|May 9, 2025
PubMed
Summary
This summary is machine-generated.

Environmentally friendly indium antimonide (InSb) colloidal quantum dot (CQD) photodetectors show commercial promise. Suppressing band-tail trap states significantly enhances their performance for short-wave infrared applications.

Keywords:
InSbband‐tail statesphotodetectorsquantum dotsshort‐wave infrared

More Related Videos

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.2K
Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays
07:13

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

1.1K

Related Experiment Videos

Last Updated: May 6, 2026

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications
07:42

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications

Published on: January 22, 2019

11.0K
Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.2K
Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays
07:13

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

1.1K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Indium antimonide (InSb) colloidal quantum dots (CQDs) offer low-cost, scalable, and CMOS-integrable solutions for short-wave infrared (SWIR) photodetectors.
  • Current InSb CQD photodetectors exhibit performance limitations hindering commercial viability.

Purpose of the Study:

  • To investigate the role of CQD fusion in forming band-tail trap states.
  • To demonstrate the critical importance of mitigating these trap states for improved device performance.
  • To achieve high-performance InSb CQD SWIR photodetectors.

Main Methods:

  • Fabrication of InSb CQDs with suppressed band-tail trap states.
  • Passivation of surface defects in InSb CQDs.
  • Characterization of photodetector performance metrics.

Main Results:

  • Achieved a record low dark current of 4 µA cm⁻².
  • Demonstrated an external quantum efficiency (EQE) of ≈20% at -1 V and high EQE at zero bias.
  • Reported a linear dynamic range exceeding 140 dB and a response time of 90 ns.
  • Attained a photoluminescence quantum yield (PLQY) of 10% for InSb/InP CQDs.

Conclusions:

  • Avoidance of band-tail trap states is crucial for high-performance InSb CQD SWIR photodetectors.
  • The developed InSb CQDs exhibit compelling metrics, including a >10-fold reduction in dark current compared to previous reports.
  • High PLQY and EQE confirm the successful fabrication of high-quality InSb CQDs through defect suppression and passivation.