A1 Journal article (refereed), original research

Structural properties of PbTe quantum dots revealed by high-energy x-ray diffraction

Open Access publication

Publication Details
Authors: Pussi Katariina, Barbiellini Bernardo, Ohara Koji, Carbó-Argibay Enrique, Kolen'ko Yuri V., Bansil Arun, Kamali Saeed
Publisher: IOP Publishing: Hybrid Open Access
Publication year: 2020
Language: English
Related Journal or Series Information: Journal of Physics: Condensed Matter
ISSN: 0953-8984
eISSN: 1361-648X
JUFO-Level of this publication: 2
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe2020081460419


High-energy X-ray diffraction (HE-XRD) experiments combined with an analysisbased on atomic-pair-distribution functions can be an effective tool for probing low-dimensional materials. Here, we show how such an analysis can be used to gain insightinto structural properties of PbTe nanoparticles. We interpret our HE-XRD data using anorthorhombic Pnma phase of PbTe, which is an orthorhombic distortion of the rocksalt phase.Although local crystal geometry can vary substantially with particle size at scales below 10 nm,and for very small nanoparticles the particle size itself influences X-ray diffraction patterns,our study shows that HE-XRD can provide a unique nano-characterization tool for unravelingstructural properties of nanoscale systems.

Research Areas

Last updated on 2020-29-09 at 11:10