Enhanced thermoelectric properties of Ag-doped MnO2 single crystal nanowires for room-temperature application
Year: 2019
Type: article
Abstract: Based on colossal Seebeck coefficient [Nanotechnology, 2012, 23, 085401], here we focused on electrical transportation of single crystal nanowire structure and Ag dopant on improving the figure of merit (ZT) for MnO 2 . In this work, a series of Mn 1−x Ag x O 2 (x = 0, 0.01 wt%, 0.02 wt%, 0.05 wt%, 0.1 wt%) single crystal nanowires have been firstly synthesized by a simple and green chemical vapor deposition (CVD) method where 0.01 wt% doped MnO 2 is considered as a good candidate due to its promising electrical transport properties. Although there is at room-temperature, the maximum ZT is achievable 0.0075 for the 0.01 wt% Ag-doped sample at 300 K, which may be attributed to single crystal nanowire structure, together with effective number of charge carrier concentration caused by the Ag dopant. Ag-doped MnO 2 single crystal nanowires provide a new possibility for green collecting energy at room-temperature.
Source: Materials Research Express
Authors: JiaHao Wang, Rui Li, YanLing Xu, Shiyun Lou, ShaoMin Zhou
Institution: Henan University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2935749154