Next Article in Journal
Materials for the Spine: Anatomy, Problems, and Solutions
Previous Article in Journal
Highly Sensitive Formaldehyde Detection Using Well-Aligned Zinc Oxide Nanosheets Synthesized by Chemical Bath Deposition Technique
Previous Article in Special Issue
High-Pressure Synthesis and Chemical Bonding of Barium Trisilicide BaSi3
Article Menu

Export Article

Open AccessArticle
Materials 2019, 12(2), 251; https://doi.org/10.3390/ma12020251

Synthesis and Characterization of K and Eu Binary Phosphides

1
Department of Chemistry, University of California, Davis, CA 95616, USA
2
Department of Chemistry, Iowa State University, Ames, IA 50011, USA
3
Ames Laboratory, U.S. Department of Energy, Ames, IA 50011, USA
*
Author to whom correspondence should be addressed.
Received: 14 December 2018 / Revised: 3 January 2019 / Accepted: 9 January 2019 / Published: 13 January 2019
(This article belongs to the Special Issue Advances in Zintl Phases)
Full-Text   |   PDF [15666 KB, uploaded 15 January 2019]   |  

Abstract

The synthesis, structural characterization, and optical properties of the binary Zintl phases of α-EuP3, β-EuP3, EuP2, and α-K4P6 are reported in this study. These crystal structures demonstrate the versatility of P fragments with dimensionality varying from 0D (P6 rings in α-K4P6) to 1D chains (EuP2) to 2D layers (both EuP3). EuP2 is isostructural to previously reported SrP2 and BaP2 compounds. The thermal stabilities of the EuP2 and both EuP3 phases were determined using differential scanning calorimetry (DSC), with melting temperatures of 1086 K for the diphosphide and 1143 K for the triphosphides. Diffuse reflectance spectroscopy indicated that EuP2 is an indirect semiconductor with a direct bandgap of 1.12(5) eV and a smaller indirect one, less than 1 eV. Both EuP3 compounds had bandgaps smaller than 1 eV. View Full-Text
Keywords: Zintl phases; polyphosphides; synthesis; crystal structures; optical properties Zintl phases; polyphosphides; synthesis; crystal structures; optical properties
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Dolyniuk, J.-A.; Mark, J.; Lee, S.; Tran, N.; Kovnir, K. Synthesis and Characterization of K and Eu Binary Phosphides. Materials 2019, 12, 251.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top