fig1

Figure 1. (A) Showing histogram of several results as a function of publication years with keywords “thermoelectric materials” in the Science Direct database. (B) Map created by VOSViewer for “thermoelectric materials” from Web of Science.
Figure 1. (A) Showing histogram of several results as a function of publication years with keywords “thermoelectric materials” in the Science Direct database. (B) Map created by VOSViewer for “thermoelectric materials” from Web of Science.
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