Journal ArticleDOI
Design of Domain Structure and Realization of Ultralow Thermal Conductivity for Record-High Thermoelectric Performance in Chalcopyrite.
Jian Zhang,Lulu Huang,Lulu Huang,Chen Zhu,Chen Zhu,Chongjian Zhou,Bushra Jabar,Jimin Li,Xiaoguang Zhu,Ling Wang,Chunjun Song,Hongxing Xin,Di Li,Xiaoying Qin +13 more
TLDR
It is shown that through alloying of isoelectronic elements In and Ag in CuGaTe2 , a quinary alloy compound system Cu1- x Agx Ga0.4 In0.6 Te2 with complex nanosized strain domain structure can effectively suppress its thermal conductivity and elevate its thermoelectric performance remarkably.Abstract:
Chalcopyrite compound CuGaTe2 is the focus of much research interest due to its high power factor. However, its high intrinsic lattice thermal conductivity seriously impedes the promotion of its thermoelectric performance. Here, it is shown that through alloying of isoelectronic elements In and Ag in CuGaTe2 , a quinary alloy compound system Cu1-x Agx Ga0.4 In0.6 Te2 (0 ≤ x ≤ 0.4) with complex nanosized strain domain structure is prepared. Due to strong phonon scattering mainly by this domain structure, thermal conductivity (at 300 K) drops from 6.1 W m-1 K-1 for the host compound to 1.5 W m-1 K-1 for the sample with x = 0.4. As a result, the optimized chalcopyrite sample Cu0.7 Ag0.3 Ga0.4 In0.6 Te2 presents an outstanding performance, with record-high figure of merit (ZT) reaching 1.64 (at 873 K) and average ZT reaching 0.73 (between ≈300 and 873 K), which are ≈37 and ≈35% larger than the corresponding values for pristine CuGaTe2 , respectively, demonstrating that such domain structure arising from isoelectronic multielement alloying in chalcopyrite compound can effectively suppress its thermal conductivity and elevate its thermoelectric performance remarkably.read more
Citations
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Journal ArticleDOI
Ultralow thermal conductivity in diamondoid lattices: high thermoelectric performance in chalcopyrite Cu0.8+yAg0.2In1−yTe2
Hongyao Xie,Shiqiang Hao,Songting Cai,Trevor P. Bailey,Ctirad Uher,Chris Wolverton,Vinayak P. Dravid,Mercouri G. Kanatzidis +7 more
TL;DR: In this paper, the authors demonstrate that Ag alloying gives rise to an extremely low lattice thermal conductivity of 0.47 W m−1 K−1 for Cu0.8Ag0.2InTe2 at 850 K.
Journal ArticleDOI
Ultralow Thermal Conductivity in Diamondoid Structures and High Thermoelectric Performance in (Cu1–xAgx)(In1–yGay)Te2
Hongyao Xie,Shiqiang Hao,Trevor P. Bailey,Songting Cai,Yinying Zhang,Tyler J. Slade,G. Jeffrey Snyder,Vinayak P. Dravid,Ctirad Uher,Chris Wolverton,Mercouri G. Kanatzidis +10 more
TL;DR: The ternary I-III-VI2 type diamond-like chalcopyrite compounds are attractive functional semiconductors, including as thermally thermally stable thermistors.
Journal ArticleDOI
High Entropy Semiconductor AgMnGeSbTe4 with Desirable Thermoelectric Performance
Zheng Ma,Tian Xu,Wang Li,Yiming Cheng,Jinmeng Li,Dan Zhang,Qinghui Jiang,Yubo Luo,Junyou Yang +8 more
Journal ArticleDOI
Key properties of inorganic thermoelectric materials—tables (version 1)
Robert Freer,Dursun Ekren,Tanmoy Ghosh,Kanishka Biswas,Pengfei Qiu,Shun Wan,Lidong Chen,Shen Han,Chenguang Fu,Tiejun Zhu,A. K. M. Ashiquzzaman Shawon,Alex Zevalkink,Kazuki Imasato,G. Jeffrey Snyder,Melis Ozen,Kivanc Saglik,Umut Aydemir,Raul Cardoso-Gil,Eteri Svanidze,Ryoji Funahashi,Anthony V. Powell,Shriparna Mukherjee,Sahil Tippireddy,Paz Vaqueiro,Franck Gascoin,Theodora Kyratsi,P. Sauerschnig,Takao Mori +27 more
TL;DR: In this article , the authors present a table of key thermoelectric properties, which define the conversion efficiency of a wide range of inorganic materials, including tellurides, skutterudites, half Heuslers, Zintls, antimonides, clathrates, FeGa3-type materials, actinides and lanthanides, oxides, sulfides, selenides, silicides, borides and carbides.
Journal ArticleDOI
Self-Powered Filterless Narrow-Band p-n Heterojunction Photodetector for Low Background Limited Near-Infrared Image Sensor Application.
Li Wang,Li Zhen,Li Ming,Shao Li,Ying-Chun Lu,Ning Qi,Jian Zhang,Chao Xie,Chunyan Wu,Lin-Bao Luo +9 more
TL;DR: A self-powered filterless narrowband near-infrared photodetector based on CuGaTe2/silicon p-n junction that showed high noise immunity for its spectral selective characteristics and typical narrow-band response was reported.
References
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Book
Lange's Handbook of Chemistry
TL;DR: This encyclopedic work includes authoritative coverage of atomic and molecular structure, organic chemistry (revised), inorganic, analytical, and electro- chemistry, mathematics as applied to chemistry, and more.
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Quantitative measurement of displacement and strain fields from HREM micrographs
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Semiconducting lead chalcogenides
TL;DR: The last decade has seen radical changes in our understand- ing of the physical properties of semiconductors as mentioned in this paper, and the visible evidence of the pro- gress is in the form of hundreds of publications, some of which re- port extremely refined and comprehensive investigations of semi-conducting materials.
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Smaller Is Cooler
TL;DR: In this paper, the authors highlight recent advances toward more efficient thermoelectric materials that may find wider application in refrigeration and power generation if production costs can be reduced, but they do not discuss the potential of these materials in other applications.
Journal ArticleDOI
Chalcopyrite CuGaTe(2): a high-efficiency bulk thermoelectric material.
Theerayuth Plirdpring,Ken Kurosaki,Atsuko Kosuga,Tristan Day,Samad Firdosy,Vilupanur A. Ravi,Vilupanur A. Ravi,G. Jeffrey Snyder,Adul Harnwunggmoung,Adul Harnwunggmoung,Tohru Sugahara,Yuji Ohishi,Hiroaki Muta,Shinsuke Yamanaka,Shinsuke Yamanaka +14 more
TL;DR: CuGaTe(2) with a chalcopyrite structure demonstrates promising thermoelectric properties and the maximum figure of merit ZT is 1.4 at 950 K.