Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 15; no. 28; pp. e1900801 - n/a
• Main Authors: Liu, Maning, Zhang, Haichang, Gedamu, Dawit, Fourmont, Paul, Rekola, Heikki, Hiltunen, Arto, Cloutier, Sylvain G., Nechache, Riad, Priimagi, Arri, Vivo, Paola
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01-07-2019
• Subjects: Commercialization; Nanocrystals; Nanotechnology; Optical properties; Optoelectronic devices; Perovskites; Photoluminescence; photophysics; Quantum confinement; Synthesis; Toxicity; perovskites; photoluminescence; photophysics; nanocrystals; optoelectronic devices
• ISSN: 1613-6810; 1613-6829
• DOI: 10.1002/smll.201900801

Colloidal perovskite nanocrystals (PNCs) combine the outstanding optoelectronic properties of bulk perovskites with strong quantum confinement effects at the nanoscale. Their facile and low‐cost synthesis, together with superior photoluminescence quantum yields and exceptional optical versatility, make PNCs promising candidates for next‐generation optoelectronics. However, this field is still in its early infancy and not yet ready for commercialization due to several open challenges to be addressed, such as toxicity and stability. Here, the key synthesis strategies and the tunable optical properties of PNCs are discussed. The photophysical underpinnings of PNCs, in correlation with recent developments of PNC‐based optoelectronic devices, are especially highlighted. The final goal is to outline a theoretical scaffold for the design of high‐performance devices that can at the same time address the commercialization challenges of PNC‐based technology.
Halide perovskite nanocrystals (PNCs) have recently attracted extensive attention for their superior and tunable optical properties and dimensionality. In this work, a comprehensive overview of the synthesis and optoelectronic properties, in relation to the emerging applications, is provided. The relationship between the photophysical underpinnings of PNCs technology and the performance of PNC‐based devices is especially highlighted.