Advances in bismuth-telluride-based thermoelectric devices: Progress and challenges

Tuning the Saturated Vapor Pressure of Solvothermal Synthesis to Boost the Thermoelectric Performance of Pristine Bi2Te3 Polycrystals by Anisotropy Strengthening

“…65 Besides, this concept can be applied to many other Bi 2 Te 3 materials such as Bi 0.5 Sb 1.5 Te 3 and Bi 2 Te 2.7 Se 0.3 . This is because Bi 0.5 Sb 1.5 Te 3 and Bi 2 Te 2.7 Se 0.3 also possess twodimensional (2D) layered structures, 66 which are similar to that of Bi 2 Te 3 . When the material nuclei were grown during the solvothermal synthesis, the anisotropy of the crystal structure derived from the 2D layered feature will make the crystal grow along the preferred direction (in-plane direction).…”

Carbon materials for hybrid evaporation-induced electricity generation systems

“…Given a thermal gradient between the photothermal layer and the bulk water, thermoelectricity is obtained by converting low-grade waste heat into electrical power via the Seebeck effect. 97,98 Most of the electrons are distributed in the hot region. Hence, the carriers in the hot region are more agile than those in the cold region.…”

Weavable thermoelectrics: advances, controversies, and future developments

“…Computer-assisted approaches, such as first-principles calculations and big data analysis [21,22], have been leveraged to expedite these processes. Currently, commercialized thermoelectric materials primarily consist of inorganic bulk materials based on bismuth telluride (Bi 2 Te 3 ), with ZT values around 1 at room temperature and corresponding energy conversion efficiencies of approximately 10% for their device [23]. In contrast, modern household refrigerators achieve energy conversion efficiencies of around 40% using traditional compression-based cooling or steam heat recovery systems [24].…”

“…In fact, over the past few decades, thermoelectric materials have played an indispensable role in certain specialized miniaturized or micro-sized devices. Applications include power generators for space satellites, refrigeration systems for automotive refrigerators, and micro-medical devices, showcasing the versatile potential of thermoelectric materials [3,13,23,27,28]. Furthermore, through ongoing research, the ZT values of many new thermoelectric materials have already surpassed 2 and can even reach 3 [29], such as GeTe [12,30,31], SnSe [32][33][34][35][36], Cu 2 Se [37][38][39].…”