Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2019-2020).

We will generate high-efficiency, transparent functional display glass (FDG) for next-generation automobiles. Current light-emitting-device (LED) technologies fail to provide high efficiency, transparency, and stability after exposure to high temperature and pressure that is required for windshield assembly. Hybrid perovskites are a new class of materials that have emerged during the last decade as a prominent candidate for optoelectronic applications and high-efficiency LEDs. Its solution-processability is especially appealing for large-scale manufacturing. We have recently shown that layered, two-dimensionally confined perovskites could offer the combination of stability, transparency and brightness.
In this project we will further develop our low-dimensional, layered perovskites to achieve, for the first time, solution-processed light emitters that are efficient, transparent throughout the visible region, and that can withstand the harsh curing processes required for automobile glass manufacturing. Through engineering of the nature and composition of the layered structures we will achieve bright (>90% efficient) and controllable red, green and blue emission with high transparency (>90%) throughout the visible part of the spectrum. We will ensure that this is attained in parallel to exceptional temperature and pressure stability. This will be accomplished by exploring both the perovskite composition space and the nature of the organic molecules that cater for the confined character in the final ensemble. We will implement the resulting materials into efficient LEDs. These devices will consist of the optimized layered perovskites sandwiched between transparent charge injection electrodes. The proposed research will culminate in red-, green-, and blue-emitting devices that can be readily integrated into transparent displays in automotive safety glass. The reach of this product can be extended from interactive screens, to logo decals, to vehicle recognition for autonomous driving.