Rational design of colloidal core/shell quantum dots for optoelectronic applications

• Published in: Journal of Electronic Science and Technology Vol. 18; no. 2; pp. 100018 - 118
• Main Authors: Huang, Xianglong, Tong, Xin, Wang, Zhiming
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2020; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054
• Subjects: Core/shell quantum dots; Light-emitting diodes; Luminescent solar concentrators; Photoelectrochemical cells; Solar cells; Solar cells; Core/shell quantum dots; Luminescent solar concentrators; Light-emitting diodes; Photoelectrochemical cells; photoelectrochemical cells (PEC); Core/shell quantum dots (QDs); luminescent solar concentrators (LSCs); solar cells; light-emitting diodes (LEDs)
• ISSN: 1674-862X
• DOI: 10.1016/j.jnlest.2020.100018

Colloidal core/shell quantum dots (QDs) are promising for solar technologies because of their excellent optoelectronic properties including tunable light absorption/emission spectra, high photoluminescence quantum yield (PLQY), suppressed Auger recombination, efficient charge separation/transfer and outstanding photo-, thermal-/chemical stability. In this review, engineered core/shell QDs with various types of band structures and corresponding device performance in luminescent solar concentrators (LSCs), light-emitting diodes (LEDs), solar-driven photoelectrochemical (PEC) devices and QDs-sensitized solar cells (QDSCs) are summarized. In particular, the applications of interfacial layer engineering and eco-friendly, heavy metal-free core/shell QDs in optoelectronic device are highlighted. Finally, strategies towards the developments and practical perspectives of core/shell QDs are briefly mentioned to offer guidelines for achieving prospective high-efficiency and long-term stable QD devices.