The rise of HgTe colloidal quantum dots for infrared optoelectronics

KA Sergeeva, H Zhang, AS Portniagin… - Advanced Functional …, 2024 - Wiley Online Library
Among materials produced as colloidal quantum dots (CQDs), HgTe has a special status
being the only material covering the whole infrared range from the visible to the THz (0.7 …

Synergism in Binary Nanocrystals Enables Top-Illuminated HgTe Colloidal Quantum Dot Short-Wave Infrared Imager

B Wang, M Yuan, J Liu, X Zhang, J Liu, J Yang… - Nano Letters, 2024 - ACS Publications
Thanks to their tunable infrared absorption, solution processability, and low fabrication costs,
HgTe colloidal quantum dots (CQDs) are promising for optoelectronic devices. Despite …

Electroluminescence and plasmon-assisted directional photoluminescence from 2D HgTe nanoplatelets

C Dabard, E Bossavit, TH Dang, N Ledos… - The Journal of …, 2023 - ACS Publications
In the visible range, 2D nanoplatelets (NPLs) have brought significant benefits compared to
their 0D counterpart with an inherently anisotropic emission, a narrower photoluminescence …

2D Silver-Nanoplatelets Metasurface for Bright Directional Photoluminescence, Designed with the Local Kirchhoff's Law

E Bailly, JP Hugonin, JR Coudevylle, C Dabard… - ACS …, 2024 - ACS Publications
Semiconductor colloidal nanocrystals are excellent light emitters in terms of efficiency and
spectral control. They can be integrated with a metasurface to make ultrathin …

Uncooled High Detectivity Mid-Infrared Photoconductor Using HgTe Quantum Dots and Nanoantennas

A Caillas, P Guyot-Sionnest - ACS nano, 2024 - ACS Publications
Using a metal/insulator/metal (MIM) structure with a gold nanoantenna array made by
electron beam lithography, the responsivity of a HgTe colloidal quantum dot film is …

Colloidal Quantum Dot‐Based Near and Shortwave Infrared Light Emitters: Recent Developments and Application Prospects

S Kumar, S Pradhan - Advanced Optical Materials, 2024 - Wiley Online Library
Solution‐processed quantum dot‐based near and short‐wave infrared light emitters have
witnessed substantial developments in recent years. A variety of colloidal quantum dots …

Observation of Quasi-Invariant Photocarrier Lifetimes in PbS Nanocrystal Assemblies Coupled to Resonant and Nonresonant Arrays of Optical Antennas

P He, A Caillas, G Boulliard, I Hamdi, P Filloux… - ACS …, 2024 - ACS Publications
We examine, in the time domain, the influence of Au antenna arrays (ie, metasurfaces) on
thin films of near-infrared PbS nanocrystals that mutually interact via Förster resonance …

Advancing the Coupling of III–V Quantum Dots to Photonic Structures to Shape Their Emission Diagram

E Bossavit, O Yeromina, D Mastrippolito… - Advanced Optical …, 2024 - Wiley Online Library
The development of optoelectronic devices based on III–V semiconductor colloidal quantum
dots (CQDs) is highly sought after due to their reduced toxicity. While devices based on …

Sha** the infrared luminescence of colloidal nanocrystals using a dielectric microcavity

E Bossavit, H Zhang, N Ledos… - Advanced Functional …, 2024 - Wiley Online Library
As they have gained maturity, colloidal nanocrystals (NCs) have also expand the spectral
range over of which they could be used for photonic and optoelectronic applications. In …

Cluster-do** in silicon nanocrystals

A ul Haq, M Buerkle, B Alessi, V Svrcek… - Nanoscale …, 2024 - pubs.rsc.org
Creating tin-alloyed silicon nanocrystals with tailored bandgap values is a significant
challenge, primarily because a substantial concentration of tin is essential to observe useful …