Ultralow Thermal Conductivity through the interplay of composition and disorder between thick and thin layers of Makovickyite structure

Author(s):  
srikanth Balijapelly ◽  
Ashlee Hauble ◽  
Mathew Pollard ◽  
Morgane Poupon ◽  
Vaclav Petricek ◽  
...  

Here we report the synthesis and characterization of three quaternary complex chalcogenides, Ag0.72Bi5.48Cu0.88S9 (I), Ag0.70Bi5.30Cu1.3S9 (II), Ag0.34Bi4.54Cu1.98PbS9 (III). All the compounds in this homologous series crystallize in the C2/m space...

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68754-68759 ◽  
Author(s):  
Devendra Pareek ◽  
K. R. Balasubramaniam ◽  
Pratibha Sharma

Cu2ZnSnTe4 was synthesized using mechano-chemical route from its elemental precursors. A homologous series of kesterite light absorber material Cu2ZnSnX4 (X: S, Se, Te) can be used for realization of multi-junction solar cells.


2000 ◽  
Vol 626 ◽  
Author(s):  
Joshua R. Williams ◽  
David C. Johnson ◽  
Michael Kaeser ◽  
Terry Tritt ◽  
George Nolas ◽  
...  

ABSTRACTPredicted and observed reductions in thermal conductivity of materials with superlattice structure have prompted interesting research into the possibility of using these materials as higher efficiency thermoelectrics. Synthesis of superlattice materials is challenging however, as the structure itself is generally not very stable at high temperatures as it is prone to interdiffusion. Presented here is the successful synthesis and characterization of a superlattice composed of two materials with the skutterudite structure, IrSb3 and CoSb3.


2001 ◽  
Vol 79 (3) ◽  
pp. 342-348 ◽  
Author(s):  
Neil Burford ◽  
T Stanley Cameron ◽  
Kim-Chung Lam ◽  
Daren J LeBlanc ◽  
Charles LB Macdonald ◽  
...  

Spectroscopic and structural features are presented for the first homologous series of diazadipnictetidines, which have the general formula [DipNPnN(H)Dip]2 (Pn = P, As, Sb, Bi; Dip = 2,6-diisopropylphenyl). The compounds are obtained from a general reaction of the corresponding halopnictine with excess LiN(H)Dip, which was previously reported for [DipNBiN(H)Dip]2. However, isolation is improved by the introduction of LiN(H)-t-Bu (at the appropriate stoichiometry) following the addition of LiN(H)Dip. The intermediate steric presence of the Dip substituent is suitable to support the heterocatenate framework for all homologues. This is in contrast to the small substituents (e.g. alkyl), which enable both bis- and tris-amination, and the larger substituent (Mes* = tri-tert-butylphenyl), which can impose coordinative unsaturation (aminoiminopnictine) for the smaller congeners (P and As).Key words: phosphorus, arsenic, antimony, bismuth, phosphazanes, phosphetidines, synthesis, structures, spectroscopic characterization.


2015 ◽  
Vol 606 (1) ◽  
pp. 47-55
Author(s):  
V. C. Kotadiya ◽  
M. D. Khunt ◽  
U. C. Bhoya

2017 ◽  
Vol 59 (4) ◽  
pp. 75-79
Author(s):  
Ngoc Anh Nguyen ◽  
Van Trinh Pham ◽  
Hung Thang Bui ◽  
Van Chuc Nguyen ◽  
Tuan Hong Nguyen ◽  
...  

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