Excitonic luminescence of iodine-intercalated HfS$_2$

Autor:	N. Zawadzka, T. Woźniak, M. Strawski, I. Antoniazzi, M. Grzeszczyk, K. Olkowska-Pucko, Z. Muhammad, J. Ibanez, W. Zhao, J. Jadczak, R. Stępniewski, A. Babiński, M. R. Molas
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Condensed Matter - Materials Science Physics and Astronomy (miscellaneous) Condensed Matter - Mesoscale and Nanoscale Physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences
Popis:	Photoluminescence from bulk HfS$_2$ grown by the chemical vapor transport method is reported. A series of emission lines is apparent at low temperature in the energy range of 1.4 - 1.5 eV. Two groups of the observed excitonic transitions followed by their replicas involving acoustic and optical phonons are distinguished using classical intensity correlation analysis. The emission is attributed to the recombination of excitons bound to iodine (I$_2$) molecules intercalated between layers of HfS$_2$. The I$_2$ molecules are introduced to the crystal during the growth as halogen transport agents in the growth process. Their presence in the crystal is confirmed by secondary ion mass spectroscopy. 5 pages, 6 figures + SM
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5ed7701b98f9cea264f11d7ce6df2cf http://arxiv.org/abs/2209.08520 Zobrazit plný text záznamu