Mercury Chalcogenide Quantum Dots: Material Perspective for Device Integration

Charlie Gréboval (1) , Audrey Chu (1) , Nicolas Goubet (2) , Clément J Livache (3) , Sandrine Ithurria (4) , Emmanuel Lhuillier (1)

1 INSP-E6 - Physico-chimie et dynamique des surfaces
2 MONARIS - De la Molécule aux Nanos-objets : Réactivité, Interactions et Spectroscopies
3 LANL - Los Alamos National Laboratory
4 LPEM - Laboratoire de Physique et d'Etude des Matériaux (UMR 8213)

Nanocrystals (NCs) are one of the few nanotechnologies to have attained mass market applications with their use as light sources for displays. This success relies on Cd-and In-based wide bandgap materials. NCs are likely to be employed in more applications as they provide a versatile platform for optoelectronics, specifically, infrared optoelectronics. The existing material technologies in this range of wavelengths are generally not cost effective, which limits the spread of technologies beyond a few niche domains, such as defense and astronomy. Among the potential candidates to address the infrared window, mercury chalcogenide (HgX) NCs exhibit the highest potential in terms of performance. In this review, we discuss how material developments have facilitated device enhancements. Because such NCs are primarily used because of their infrared optical features, we first review the strategies for the associated colloidal growth and electronic structure. The review is organized considering three main device-related applications: light emission, electronic transport and infrared photodetection.

Mots clés: nanocrystals; infrared; mercury chalcogenides; optoelectronics; light detection

Domaines: Matériaux; Matière Condensée [cond-mat]

Charlie Gréboval, Audrey Chu, Nicolas Goubet, Clément J Livache, Sandrine Ithurria, et al.. Mercury Chalcogenide Quantum Dots: Material Perspective for Device Integration. Chemical Reviews, In press, ⟨10.1021/acs.chemrev.0c01120⟩. ⟨hal-03155744⟩