Composition change-driven texturing and doping in solution-processed SnSe thermoelectric thin films

Nature Communications
Seung Hwae HeoJae Sung Son

Abstract

The discovery of SnSe single crystals with record high thermoelectric efficiency along the b-axis has led to the search for ways to synthesize polycrystalline SnSe with similar efficiencies. However, due to weak texturing and difficulties in doping, such high thermoelectric efficiencies have not been realized in polycrystals or thin films. Here, we show that highly textured and hole doped SnSe thin films with thermoelectric power factors at the single crystal level can be prepared by solution process. Purification step in the synthetic process produced a SnSe-based chalcogenidometallate precursor, which decomposes to form the SnSe2 phase. We show that the strong textures of the thin films in the b-c plane originate from the transition of two dimensional SnSe2 to SnSe. This composition change-driven transition offers wide control over composition and doping of the thin films. Our optimum SnSe thin films exhibit a thermoelectric power factor of 4.27 μW cm-1 K-2.

References

Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
Jan 1, 1993·Physical Review. B, Condensed Matter·G Kresse, J Hafner
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Jan 26, 2008·Nature Materials·G Jeffrey Snyder, Eric S Toberer
Apr 4, 2012·Annual Review of Chemical and Biomolecular Engineering·Matthew G Panthani, Brian A Korgel
Oct 18, 2012·Advanced Materials·Yanzhong PeiG J Snyder
Oct 16, 2013·Journal of the American Chemical Society·David H Webber, Richard L Brutchey
Jul 22, 2014·Angewandte Chemie·Hao Zhang, Dmitri V Talapin
Aug 15, 2014·Physical Chemistry Chemical Physics : PCCP·Chandan BeraGeorg K H Madsen
Apr 14, 2015·ACS Nano·Zhaoyang LinXiangfeng Duan
Jun 28, 2016·Journal of the American Chemical Society·Tian-Ran WeiMercouri G Kanatzidis
Nov 15, 2016·Physical Chemistry Chemical Physics : PCCP·Dan FengJiaqing He
Dec 13, 2016·Nature Communications·Anh Tuan DuongSunglae Cho
Jan 14, 2017·Physical Review Letters·Antoine DewandreMatthieu J Verstraete
Apr 4, 2017·Advanced Materials·Zhaoyang LinXiangfeng Duan
Jun 28, 2017·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Jonathan M SkeltonAron Walsh
Dec 16, 2017·Journal of the American Chemical Society·Wei WeiGuodong Tang
Jun 23, 2018·Advanced Materials·Matthew R BurtonMatthew J Carnie
Jul 8, 2018·Nanoscale Research Letters·Van Quang NguyenSunglae Cho

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Citations

Apr 11, 2020·Advanced Science·Xiao-Lei ShiZhi-Gang Chen
Jun 12, 2021·Nature Communications·Seungjun ChooJae Sung Son
May 22, 2020·ACS Applied Materials & Interfaces·Y U ZhangAndreu Cabot
Jul 3, 2020·Chemical Reviews·Xiao-Lei ShiZhi-Gang Chen
Dec 2, 2021·ACS Applied Materials & Interfaces·Vaithinathan KarthikeyanVellaisamy A L Roy
Jan 7, 2022·The Journal of Physical Chemistry Letters·Yadong HanJianbo Hu

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Methods Mentioned

BETA
X-ray

Software Mentioned

PHONOPY
VASP
PHONO3PY
MATLAB
Vienna ab initio simulation package ( VASP )

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