Determination of chloride and bromide in lead telluride and bismuth telluride systems

1976 ◽  
Vol 66 (3-4) ◽  
pp. 225-232 ◽  
Author(s):  
L. Zanotti ◽  
F. Licci
2017 ◽  
Vol 7 (4) ◽  
pp. 922-927 ◽  
Author(s):  
Mengliang Yao ◽  
Cyril Opeil ◽  
Stephen Wilson ◽  
Mona Zebarjadi

Abstract


Nano Letters ◽  
2013 ◽  
Vol 13 (5) ◽  
pp. 2058-2063 ◽  
Author(s):  
Haiyu Fang ◽  
Tianli Feng ◽  
Haoran Yang ◽  
Xiulin Ruan ◽  
Yue Wu

2018 ◽  
Vol 42 (1) ◽  
pp. 564-573 ◽  
Author(s):  
Susmita Pradhan ◽  
Sudip Biswas ◽  
Dipak K. Das ◽  
Radhaballabh Bhar ◽  
Rajib Bandyopadhyay ◽  
...  

Herein, lead telluride (PbTe) nanocrystals were chemically synthesized at room temperature via reduction of homogeneous mixtures of tartrate complexes of Pb2+ and Te4+ with sodium borohydride.


1991 ◽  
Vol 234 ◽  
Author(s):  
T. Caillat ◽  
M. Carle ◽  
J. P. Fleurial ◽  
H. Scherrer ◽  
S. Scherrer

ABSTRACTIt has been reported that high figures of merit could be achieved on bismuth telluride grown by T.H.M. (Travelling Heater Method). Further improvements could be obtained for the p-type materials by studying solid solutions formed by bismuth telluride and antimony telluride.A good knowledge of the ternary phase diagram is necessary to obtain homogeneous ingots by T.H.M..We present the results of the determination of ternary phase diagram (Bi-Sb-Te). The equilibrium data between liquid and solid alloys Bi8Sb32Te60, Bi9Sb31Te60 and Bi10Sb30Te60 are also reported and it allows their elaboration by T.H.M..Thermoelectric characterization of ternary samples is carried out as a function of stoichiometric deviations. Measurements of electrical and thermal conductivities as well as Seebeck coefficient were done at room temperature for the Bi8Sb32Te60, Bi9Sb31Te60 and Bi10Sb30Te60 alloys.The values of the figure of merit remain interesting for the alloys studied and a maximum value of 3.2 10−3 K−1 is reached for the Bi9Sb31Te60 alloy.


2021 ◽  
Vol 335 ◽  
pp. 03010
Author(s):  
Lim Zi Feng ◽  
Lim Joon Hoong

Global warming due to greenhouse gases that has been produced by energy generator as a byproduct has becoming a serious issue in recent decades. Thermoelectric module is an alternative method that can generate energy from heat and vice versa. The module is denominated as thermoelectric generator (TEG) when it is used to generate electricity via a process called the Seebeck effect. The use of thermoelectric generator has become more and more demanding due to the low maintenance cost and waste heat availability can be found everywhere in daily life such as car exhaust, roof tiles, and etc. The purpose of this research paper was to determine the effect of temperature mismatch on the life cycle of the thermoelectric generator efficiency using ANSYS simulation. The common used materials for the thermoelectric are bismuth telluride, lead telluride and silicon germanium. Each material has different thermal conductivity, Seebeck coefficient and electrical resistivity. The materials are paired together to form a thermocouple and the thermal gradient of the TEG is being evaluate through the simulation. Generally, the greater the temperature between the hot and cold side of the TEG, the higher the power generated. Bismuth telluride has a highest temperature difference between the hot and cold side followed by lead telluride and silicon germanium. The combination of BiTe(N) - BiTe(P) has the lowest minimum heat flux compared to the rest of the thermoelectric material combination. This proves that thermal and electrical properties and combination of thermoelectric material plays a vital role in the thermal gradient of the TEG.


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