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)… Click to show full 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 MnO2. In this work, a series of Mn1−xAgxO2 (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 MnO2 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 MnO2 single crystal nanowires provide a new possibility for green collecting energy at room-temperature.
               
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