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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.
[22]
Figure 2. Variation of ZT with temperature of some common inorganic TE materials. Adapted from Jarman et al. . (Licence CC By
4.0).
include earth-abundant elements, ease of manufacturing involving solution-based methods, the possibility
of a cost-effective scale-up process, lightweight, mechanical flexibility, low toxicity, and low thermal
conductivity [25,26] . However, due to poor Seebeck coefficient and electrical conductivity, organic materials
[27]
have inferior ZT values . Nevertheless, the development of organic materials for TE devices has been
reviewed by several authors [25,27-29] . Interestingly, the inorganic-organic hybrid materials are emerging as
novel TE materials. The hybrid TE materials could combine the high S and σ of inorganic materials and the
