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Compositional Effects and Electron Lone-pair Distortions in Doped Bournonites.

A new interesting article has been published in Chemphyschem. 2018 Oct 19;19(20):2635-2644. doi: 10.1002/cphc.201800613. Epub 2018 Aug 22. and titled:

Compositional Effects and Electron Lone-pair Distortions in Doped Bournonites.

Authors of this article are:

Khabibullin AR, Wei K, Huan TD, Nolas GS, Woods LM.

A summary of the article is shown below:

Bornite materials are naturally occurring systems composed of earth-abundant constituents. Bournonite, a representative of this class of materials, is of interest for thermoelectric applications due to its inherently low thermal conductivity, which has been attributed to the lattice distortions due to stereochemically active electron lone pair distributions. In this computational and experimental study, we present analyses of the lattice structure, electron and phonon dynamics, and charge localization and transfer properties for undoped and Ni and Zn doped bournonites. The results from our simulations reveal complex relations between bond length and bond angle characteristics, chemical bonding, and charge transfer upon doping. Analysis of the experimental results indicate that a microscopic description for bournonite and its doped compositions is necessary for a complete understanding of these materials, as well as for effective control of the transport properties for targeted applications.

Check out the article’s website on Pubmed for more information:

This article is a good source of information and a good way to become familiar with topics such as:

bournonites;density functional theory;first-principles simulations;thermal conductivity;thermoelectricity


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