2015
DOI: 10.1016/j.nanoen.2015.07.012
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High-performance thermoelectric Cu2Se nanoplates through nanostructure engineering

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Cited by 244 publications
(157 citation statements)
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References 34 publications
(66 reference statements)
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“…In the study of La-doped and I-doped PbTe systems, Pei et al [111] confirmed that the relationship of n* ∝ (m d *T) 1.5 can be used to accurately estimate n* for the doped PbTe systems. [42,48] This may guide us to target different n* for different materials depending upon their intended application temperature. For example, Bi 2 Te 3 has n* with a level of 10 19 at room temperature, [123] while Cu 2 Se has n* > 10 20 at room temperature.…”
Section: Wwwadvancedsciencenewscommentioning
confidence: 99%
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“…In the study of La-doped and I-doped PbTe systems, Pei et al [111] confirmed that the relationship of n* ∝ (m d *T) 1.5 can be used to accurately estimate n* for the doped PbTe systems. [42,48] This may guide us to target different n* for different materials depending upon their intended application temperature. For example, Bi 2 Te 3 has n* with a level of 10 19 at room temperature, [123] while Cu 2 Se has n* > 10 20 at room temperature.…”
Section: Wwwadvancedsciencenewscommentioning
confidence: 99%
“…High TE efficiency requires high ZT value of materials, which is essential to make the TEGs competitive with other alternative energy sources and expands the extent of the application. In recent decades, different TE materials, including Skutterudites, [24][25][26][27][28] Clathrates, [29][30][31][32] complex alloys, [33][34][35][36][37][38][39][40] metal chalcogenides, [41][42][43][44][45][46][47][48][49][50][51][52] conductive polymers, [53][54][55][56][57][58] and some oxides, [59][60][61][62] have been identified as promising systems with intrinsically high ZT. [1,4] However, S, σ, and κ e are strongly coupled through the carrier concentration (n), [1] so that they interact and conflict with each other.…”
Section: Introductionmentioning
confidence: 99%
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“…Это позволило авторам сделать вывод, что исключительно низкая решеточная теплопроводность обусловлена рас-сеянием фононов на этих межзеренных нанограницах и нанодефектах. Этот вывод подтверждается результа-тами работ, где в наноструктурных образцах, синтези-рованных химическим методом с последующим ИПС, решеточная теплопроводность составляла 0.2 [29] и 0.23 W/(m · K) [30] при 850−900 K. Наличие таких нано-дефектов не учитывалось в расчетах теплопроводности. Именно с этим и связано существенное различие рас-четных и экспериментальных значений решеточной теп-лопроводности при температурах выше 780 K (рис.…”
Section: обсуждение результатовunclassified
“…ZT > 2 has been identified in these binary copper chalcogenides. (ZT values of 1.7-1.9 for Cu 2−x S [12][13][14][15][16][17][18], 1.3-2.1 for Cu 2−x Se [14][15][16][17], and 0.3-1.1 for Cu 2−x Te [18][19][20]). Chemical doping has been widely adopted to tune the carrier concentration and improve the ZT of thermoelectric materials [21][22][23][24][25][26][27].…”
Section: Introductionmentioning
confidence: 98%