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Compositional Fluctuations Locked by Athermal Transformation Yielding High Thermoelectric Performance in GeTe
Advanced Materials ( IF 27.4 ) Pub Date : 2021-02-22 , DOI: 10.1002/adma.202008808
Yi‐Fen Tsai , Pai‐Chun Wei , Liuwen Chang , Kuang‐Kuo Wang , Chun‐Chuen Yang , Yen‐Chung Lai , Cheng‐Rong Hsing , Ching‐Ming Wei , Jian He , G. Jeffrey Snyder , Hsin‐Jay Wu

Adv. Mater. 2021, 33, 2005612

Mistakes in Figure 2a and Figure 5e are corrected here.

image
Figure 2a
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Isothermal section of Ge–Sb–Te at 623 K superimposed with nominal compositions of thermally equilibrated alloys.
image
Figure 5e
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Isoplethal section of pseudo‐binary (GeTe)1−y(Sb2Te3)y, revealing the temperature and composition ranges of the phase decomposition and diffusion‐less athermal transformation. The insets: Line‐scan results for Sb concentration for y = 0.05 samples annealed at 773 and 723 K are shown as an inset, together with the Gibbs free energy curves (G) versus composition (y) for the spinodal decomposition (right panel, upper image) and the athermal transformation (right panel, lower image). The Sb concentration in the 773 K‐annealed sample is nearly constant (≈7 at%Sb), while that for the sample that underwent phase decomposition can be as wide as 6–11 at%Sb from Sb‐deficient to Sb‐rich regions.

i) In Figure 2a, the temperature should refer to 623 K, as is mentioned in the caption, instead of 723 K, which is in the published image. ii) In Figure 5e, in the lower right inset, the yellow atom represents Ge, rather than Sb as quoted in the originally published figure.

The corrected figures are shown below.



中文翻译:

非热转变锁定的组分涨落在GeTe中产生高热电性能

进阶 母校 202133,2005612

在此纠正了图2a和图5e中的错误。

图像
图2a
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Ge–Sb–Te在623 K的等温截面与热平衡合金的标称成分叠加。
图像
图5e
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伪二元(GeTe)1- y(Sb 2 Te 3y的等渗截面,揭示了相分解和无扩散无热转变的温度和组成范围。插图:y  = 0.05样品在773和723 K退火时y的Sb浓度的线扫描结果显示为插图,以及吉布斯自由能曲线(G)与成分(y)用于旋节线分解(右图,上图)和无热转变(右图,下图)。773 K退火样品中的Sb浓度几乎恒定(≈7 at%Sb),而经历了相分解的样品从Sb不足到富Sb区域的Sb浓度可高达6-11 at%Sb。 。

i)在图2a中,如标题中所述,温度应为623 K,而不是已发布图像中的723K。ii)在图5e中,右下插图中的黄色原子表示Ge,而不是原始发表的图中引用的Sb。

校正后的数字如下所示。

更新日期:2021-02-22
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