2D metal oxide nanoflakes for sensing applications: Review and perspective

SENSORS AND ACTUATORS B-CHEMICAL

卷:272

Review

Dral, A. Petra¹  ten Elshof, Johan E.¹ 

[1] Univ Twente, Inorgan Mat Sci, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands

关键词: Two-dimensional;    Metal oxide;    Nanosheet;    Biosensor;    Gas sensor;    Hierarchical architecture;   

DOI  :  10.1016/j.snb.2018.05.157

来源: Elsevier

【 摘 要 】

In this review the state of the art and future prospects of 2-dimensional (2D) metal oxide nanoflakes used as active sensing elements for the detection of solutes, gases and radiation are discussed. 2D material geometries are particularly interesting for sensing applications because they provide large specific surface areas and are suitable for crystal facet engineering. In addition, unique material properties of atomically thin nanosheets due to quantum size effects provide engineering possibilities beyond the realm of their bulk counterparts. A variety of possibilities in materials, synthesis routes, (hierarchical) sensor architectures and application areas is sketched. The discussion is focused on high-performing sensors and innovative concepts. The scope is limited to nanoflakes with a thickness of up to 50 nm. Special attention is given to sensing based on material properties that are unique to atomically thin nanosheets.

【 授权许可】

Free