Chlorine-enabled electron doping in solution-synthesized SnSe thermoelectric nanomaterials
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An aqueous solution method is developed for the facile synthesis of Cl-containing SnSe nanoparticles in 10 g quantities per batch. The particle size and Cl concentration of the nanoparticles can be efficiently tuned as a function of reaction duration. Hot pressing produces n-type Cl-doped SnSe nanostructured compacts with thermoelectric power factors optimized via control of Cl dopant concentration. This approach, combining an energy-efficient solution synthesis with hot pressing, provides a simple, rapid, and low-cost route to high performance n-type SnSe thermoelectric materials.
Han , G , Popuri , S R , Greer , H F , Llin , L F , Bos , J-W G , Zhou , W , Paul , D J , Ménard , H , Knox , A R , Montecucco , A , Siviter , J , Man , E A , Li , W , Paul , M C , Gao , M , Sweet , T , Freer , R , Azough , F , Baig , H , Mallik , T K & Gregory , D H 2017 , ' Chlorine-enabled electron doping in solution-synthesized SnSe thermoelectric nanomaterials ' Advanced Energy Materials , vol 7 , no. 13 , 1602328 . DOI: 10.1002/aenm.201602328
Advanced Energy Materials
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1002/aenm.201602328
This work was financially supported by the EPSRC (EP/K022156/1). SRP and JWGB acknowledge the EPSRC for support (EP/N01717X/1). HFG and WZ acknowledge the EPSRC for the Equipment Grant to purchase Titan Themis 200 microscope (EP/L017008/1).
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