The effect of Ag concentration on the structural, electrical and thermal transport behavior of Pb:Te:Ag:Se mixtures and improvement of thermoelectric performance via Cu doping

Organic ligand displacement by metal salts to enhance nanoparticle functionality: thermoelectric properties of Ag2Te

“…On the other hand, the Ag 2 Te-OL materials displayed an increase of electrical conductivity with temperature, which we associate with the increase of the charge carrier concentration by the ionization of Ag vacancies acting as deep acceptor levels. 31,51 The temperature evolution of the Seebeck coefficient (Fig. 6b) also displayed a jump at around 420 K, which we associate with the Ag 2 Te phase transition.…”

18-Electron half-Heusler compound Ti0.75NiSb with intrinsic Ti vacancies as a promising thermoelectric material

“…The further development and design of new and efficient thermoelectric materials will play an important role in promoting their large-scale application. 3,4 So far, a variety of thermoelectric materials have been studied, including Bi 2 Te 3 , 5 PbTe, 6 Si 1− x Ge x , 7 skutterudite, 8 half-Heuslers, 9 SnSe, 10 In 4 Se 3 (ref. 11) and so on.…”

Alloying to increase the band gap for improving thermoelectric properties of Ag2Te

“…Being similar to the above mentioned compounds, another known G-semiconductor, 21,22 Ag 2 Te, also shows very low effective mass 23 leading to high mobility. In addition, the intrinsic low thermal conductivity 24 has inspired research interest in this system as a thermoelectric material, [25][26][27] and a maximum zT of $0.6 was achieved. 26 Due to the small band gap (#0.2 eV, depending on the phase modification) of this material, 23,28 the observed nearly intrinsic conduction (decreasing or flattening S with increasing T) 23,26,29 behavior strongly suggests that the potential of this material as a thermoelectric is not fully realized.…”