Qingyu Yan: Achieving Enhanced Thermoelectric Performance in multi-phase materials



  Prof. Qingyu Yan




颜清宇老师现为新加坡南洋理工大学材料科学与工程学院教授/副院长。在南京大学材料科学与工程系获得学士学位、纽约州立大学材料科学与工程系获得博士学位。之后,加入伦斯勒理工学院材料科学与工程系,担任博士后研究助理。2008年,加入新加坡南洋理工大学材料科学与工程学院,担任助理教授,2013年晋升为副教授。现任新加坡电化学学会主席、英国皇家化学会士和Materials Research Express(IOP Journal)成员,在热电材料和纳米晶体的电化学性质两大领域发表诸如Nature Communications, Angew chem. int. ed., Advanced Materials, Advanced Energy Materials, Advanced Functional Materials., ACS NANO, Nano Letters, Energy & Environmental Science等280余篇论文,共引用15000余次,h-index为64。


Thermoelectric materials are capable of direct solid state conversion of heat to electricity without moving parts or gas emissions, and show a great potential for increasing energy utilization efficiency and reducing greenhouse gas emissions. Controlling the charge carrier concentration, lattice defects and electronic band structures are very important to enhance the thermoelectric properties of materials. This can be achieved in multi-phased material system. We will show some examples for the enhancing and optimizing the performance of PbX (X= S, Se, Te) based thermoelectric materials by incorporation with other phases. We will also discuss some work on control the crystal orientation of polycrystalline SnSe2 samples to improve its charge transport behavior and optimize thermoelectric properties.


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