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Zhifeng Ren

Researcher at Texas Center for Superconductivity

Publications -  726
Citations -  84970

Zhifeng Ren is an academic researcher from Texas Center for Superconductivity. The author has contributed to research in topics: Thermoelectric effect & Thermoelectric materials. The author has an hindex of 122, co-authored 695 publications receiving 71212 citations. Previous affiliations of Zhifeng Ren include Massachusetts Institute of Technology & University of Cincinnati.

Papers
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Journal ArticleDOI

Proton Irradiation Effect on Thermoelectric Properties of Nanostructured N-Type Half-Heusler Hf 0.25 Zr 0.75 NiSn 0.99 Sb 0.01

Nicholas Kempf, +9 more
- 13 Jun 2018 - 
TL;DR: In this paper, a unique high-sensitivity scanning thermal microprobe was used to simultaneously map the irradiation effect on thermal conductivity and Seebeck coefficient with spatial resolution less than 2'μm.
Journal ArticleDOI

A rapid method to extract Seebeck coefficient under a large temperature difference.

Qing Zhu, +2 more
- 28 Sep 2017 - 
TL;DR: A quasi-steady state method to accurately measure the Seebeck coefficient under large temperature gradient is proposed, which is not only highly accurate but also less time consuming.
Journal Article

Achieving high power factor and output power density in p-type half-Heuslers Nb

Ran He, +13 more
- 01 Nov 2016 - 
TL;DR: In this paper, the authors achieved a peak power factor of ∼106 μW⋅cm−1⋆K−2 by increasing the hot pressing temperature up to 1,373 K in the p-type half-Heusler Nb0.95Ti0.05FeSb.
Patent

Thermoelectric properties by high temperature annealing

Zhifeng Ren, +3 more
TL;DR: In this paper, a method for improving thermoelectric properties of alloys by subjecting them to one or more high temperature annealing steps, performed at temperatures at which the alloys exhibit a mixed solid/liquid phase, followed by cooling steps.
Journal ArticleDOI

Unusual consequences of donor and acceptor doping on the thermoelectric properties of the MgAg0.97Sb0.99 alloy

Yuan Liu, +7 more
- 06 Feb 2018 - 
TL;DR: In this article, a series of dopants to the slightly Ag- and Sb-deficient MgAg0.97Sb0.99 alloy are studied to explore their consequences on the power factor (PF) and thermoelectric figure-of-merit (ZT) of the alloy.