H
Hengzhi Wang
Researcher at Boston College
Publications - 32
Citations - 3044
Hengzhi Wang is an academic researcher from Boston College. The author has contributed to research in topics: Thermoelectric effect & Thermoelectric materials. The author has an hindex of 20, co-authored 32 publications receiving 2681 citations. Previous affiliations of Hengzhi Wang include Boston University & Southeast University.
Papers
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Journal ArticleDOI
Enhancement of Thermoelectric Properties by Modulation-Doping in Silicon Germanium Alloy Nanocomposites
Bo Yu,Mona Zebarjadi,Hui Wang,Kevin Lukas,Hengzhi Wang,Dezhi Wang,Cyril Opeil,Mildred S. Dresselhaus,Gang Chen,Zhifeng Ren +9 more
TL;DR: An alternative materials design is reported, using alloy Si(70) Ge(30) instead of Si as the nanoparticles and Si(95)Ge(5) as the matrix, to increase the power factor but not the thermal conductivity, leading to a ZT of 1.3 ± 0.1 at 900 °C.
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Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide
Qinyong Zhang,Qinyong Zhang,Hui Wang,Weishu Liu,Hengzhi Wang,Bo Yu,Qian Zhang,Zhiting Tian,George Ni,Sangyeop Lee,Keivan Esfarjani,Gang Chen,Zhifeng Ren +12 more
TL;DR: By adding aluminium (Al) into lead selenide (PbSe), the authors successfully prepared n-type PbSe thermoelectric materials with a figure-of-merit (ZT) of 1.3 at 850 K.
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A molecular-imprint nanosensor for ultrasensitive detection of proteins
Dong Cai,Lu Ren,Lu Ren,Huaizhou Zhao,Chenjia Xu,Lu Zhang,Ying Yu,Ying Yu,Hengzhi Wang,Yucheng Lan,Mary F. Roberts,Jeffrey H. Chuang,Michael J. Naughton,Zhifeng Ren,Thomas C. Chiles +14 more
TL;DR: Arrays of carbon-nanotube tips with an imprinted non-conducting polymer coating can recognize proteins with subpicogram per litre sensitivity using electrochemical impedance spectroscopy and this ultrasensitive, label-free electrochemical detection of proteins offers an alternative to biosensors based on biomolecule recognition.
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Enhancement in Thermoelectric Figure‐Of‐Merit of an N‐Type Half‐Heusler Compound by the Nanocomposite Approach
TL;DR: In this article, an enhancement in the dimensionless thermoelectric performance of an n-type half-Heusler material was reported using a nanocomposite approach.
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Thermoelectric properties of copper selenide with ordered selenium layer and disordered copper layer
TL;DR: In this article, a thermoelectric figure-of-merit (ZT) of ∼1.6 at 700°C is achieved in β-phase copper selenide (Cu2Se) made by ball milling and hot pressing.