Colloidal semiconductor nanocrystal lasers and laser diodes

N Ahn, C Livache, V Pinchetti, VI Klimov - Chemical Reviews, 2023 - ACS Publications
Lasers and optical amplifiers based on solution-processable materials have been long-
desired devices for their compatibility with virtually any substrate, scalability, and ease of …

InP colloidal quantum dots for visible and near-infrared photonics

G Almeida, RF Ubbink, M Stam, I du Fossé… - Nature Reviews …, 2023 - nature.com
Owing to their tunable band gap, high absorption coefficient, narrow emission linewidths
and unrestricted composition, InP-based colloidal quantum dots (QDs) have become …

Electrically driven amplified spontaneous emission from colloidal quantum dots

N Ahn, C Livache, V Pinchetti, H Jung, H **, D Hahm… - Nature, 2023 - nature.com
Colloidal quantum dots (QDs) are attractive materials for realizing solution-processable
laser diodes that could benefit from size-controlled emission wavelengths, low optical-gain …

Multicarrier dynamics in quantum dots

C Melnychuk, P Guyot-Sionnest - Chemical Reviews, 2021 - ACS Publications
Multicarrier dynamics play an essential role in quantum dot photophysics and
photochemistry, and they are primarily governed by nonradiative Auger processes. Auger …

Colloidal quantum dots enable tunable liquid-state lasers

D Hahm, V Pinchetti, C Livache, N Ahn, J Noh, X Li… - Nature materials, 2024 - nature.com
Present-day liquid-state lasers are based on organic dyes. Here we demonstrate an
alternative class of liquid lasers that use solutions of colloidal quantum dots (QDs). Previous …

Guilty as Charged: The Role of Undercoordinated Indium in Electron-Charged Indium Phosphide Quantum Dots

M Stam, I du Fossé, I Infante, AJ Houtepen - ACS nano, 2023 - ACS Publications
Quantum dots (QDs) are known for their size-dependent optical properties, narrow emission
bands, and high photoluminescence quantum yield (PLQY), which make them interesting …

Electrochemical p-Do** of CsPbBr3 Perovskite Nanocrystals

JT Mulder, I Du Fossé, M Alimoradi Jazi… - ACS Energy …, 2021 - ACS Publications
Lead halide perovskite nanocrystals have drawn attention as active light-absorbing or-
emitting materials for opto-electronic applications due to their facile synthesis, intrinsic defect …

Toward bright mid-infrared emitters: thick-shell n-Type HgSe/CdS Nanocrystals

A Kamath, C Melnychuk… - Journal of the American …, 2021 - ACS Publications
A procedure is developed for the growth of thick, conformal CdS shells that preserve the
optical properties of 5 nm HgSe cores. The n-do** of the HgSe/CdS core/shell particles is …

Zero-threshold optical gain in electrochemically doped nanoplatelets and the physics behind it

JJ Geuchies, R Dijkhuizen, M Koel, G Grimaldi… - ACS …, 2022 - ACS Publications
Colloidal nanoplatelets (NPLs) are promising materials for lasing applications. The
properties are usually discussed in the framework of 2D materials, where strong excitonic …

Broadband tunable optical gain from ecofriendly semiconductor quantum dots with near-half-exciton threshold

Z Huang, Q Sun, S Wang, H Shen, W Cai, Y Wang - Nano Letters, 2023 - ACS Publications
Optical gain in solution-processable quantum dots (QDs) has attracted intense interest
toward next-generation optoelectronics; however, the development of optical gain in heavy …