Band Alignment Engineering of Semiconductor Nanocrystal Heterostructures Toward Emerging Applications. Issue 8 (19th May 2022)

• Record Type: Journal Article
• Authors: Liu, Long; Bai, Bing; Li, Jun; Zhou, Yi; Hsu, Hsien-Yi; Jia, Guohua
• Is Part Of: Solar RRL. Volume 6:Issue 8(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-05-19
• Subjects: band alignment -- colloidal synthesis -- heterostructure -- LED -- photocatalysis -- semiconductor nanocrystals; Solar energy -- Periodicals; Photovoltaic power generation -- Periodicals; Solar energy -- Research -- Periodicals; Photovoltaic power generation -- Research -- Periodicals; Periodicals; 333.7923
• DOI: 10.1002/solr.202200299
• Languages: English
• ISSNs: 2367-198X

Abstract

Abstract : Due to the superb tunable properties of quantum dots (QDs), they have been largely studied in the past few decades for many promising applications. However, for a single nanocrystal QD, its properties are largely limited due to limited tunability of the composition, charge carrier dynamics, band alignment, and so on. Thus, to solve the problem, and enhance their physical, chemical, electrical, and optical properties, the heterostructure nanocrystals (NCs), which combine single NCs with other materials of either semiconductor or metal, are proposed. In these heterostructures, their properties can be modified through tailoring the band alignment, and therefore providing a great potential for widespread applications. Here, an overview of strategies for band alignment engineering, synthesis methods, and the corresponding applications, such as lighting devices, lasers, photocatalysis, biological applications are offered. Abstract : Semiconductor nanocrystal (NC) heterostructures show modified properties, especially in the charge separation, and hold promising applications in lighting devices, lasers, catalysis. In this review, various strategies for engineering of band alignment of heterostructures, the corresponding synthesis methods and the relevant emerging applications are discussed.