{"id":669,"date":"2021-06-08T08:07:41","date_gmt":"2021-06-08T06:07:41","guid":{"rendered":"https:\/\/funglass.eu\/ssc2021\/?p=669"},"modified":"2021-09-14T14:27:04","modified_gmt":"2021-09-14T12:27:04","slug":"advances-in-solid-state-materials-synthesis-new-solids-and-compounds-jenickova","status":"publish","type":"post","link":"https:\/\/funglass.eu\/ssc2021\/advances-in-solid-state-materials-synthesis-new-solids-and-compounds-jenickova\/","title":{"rendered":"P-05 Influence of various annealing atmospheres on excitonic and defect photoluminescence properties of single-crystal ZnO"},"content":{"rendered":"<div id=\"call\"><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom: 0px;margin-top: 0px;border-width: 0px 0px 0px 0px;border-color:#eae9e9;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"margin-top:0px;margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-1\" style=\"transform:translate3d(0,0,0);\"><h3 data-fontsize=\"20\" data-lineheight=\"30\">Topic: Advances in solid state materials synthesis, new solids and compounds<\/h3>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:10px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><ul class=\"fusion-checklist fusion-checklist-1\" style=\"font-size:14px;line-height:23.8px;\"><li class=\"fusion-li-item\"><span style=\"background-color:#00c9e2;font-size:12.32px;height:23.8px;width:23.8px;margin-right:9.8px;\" class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-female fas\" style=\"color:#ffffff;\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\" style=\"margin-left:33.6px;\">\n<p>Bc. Karla Jen\u00ed\u010dkov\u00e1<\/p>\n<\/div><\/li><li class=\"fusion-li-item\"><span style=\"background-color:#00c9e2;font-size:12.32px;height:23.8px;width:23.8px;margin-right:9.8px;\" class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-university fas\" style=\"color:#ffffff;\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\" style=\"margin-left:33.6px;\">\n<p>University of Chemistry and Technology, Prague, Czech republic<\/p>\n<\/div><\/li><li class=\"fusion-li-item\"><span style=\"background-color:#00c9e2;font-size:12.32px;height:23.8px;width:23.8px;margin-right:9.8px;\" class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-graduation-cap fas\" style=\"color:#ffffff;\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\" style=\"margin-left:33.6px;\">\n<p>Department of Inorganic Chemistry<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:40px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-text fusion-text-2\" style=\"transform:translate3d(0,0,0);\"><a href=\"https:\/\/funglass.eu\/ssc2021\/wp-content\/uploads\/2021\/06\/P-05_K1.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\"  data-toolbar=\"bottom\" data-toolbar-fixed=\"off\">P-05_K~1<br\/><\/a>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:40px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-text fusion-text-3\" style=\"transform:translate3d(0,0,0);\"><p><u>K. Jen\u00ed\u010dkov\u00e1<\/u><sup>1*<\/sup>, J. Cajzl<sup>1<\/sup>, P. Nekvindov\u00e1<sup>1<\/sup>, A. Mackov\u00e1<sup>2,3<\/sup><\/p>\n<p><sup>1\u00a0<\/sup>Department of Inorganic Chemistry, University of Chemistry and Technology, Technick\u00e1 5, 166 28 Prague, Czech Republic;<\/p>\n<p><sup>2\u00a0<\/sup>Nuclear Physics Institute, Czech Academy of Sciences, v. v. i., 250 68 \u0158e\u017e, Czech Republic; <sup>3\u00a0<\/sup>Department of Physics, J.E. Purkinje University, \u010cesk\u00e9 ml\u00e1de\u017ee 8, 400 96 \u00dast\u00ed nad Labem,<\/p>\n<p>Czech Republic;<\/p>\n<p><em><sup>*<\/sup><\/em> <em>E<\/em><em>-mail: <\/em><a href=\"mailto:jenickok@vscht.cz\"><em>jenickok@vscht.cz<\/em><\/a><\/p>\n<p><strong>Keywords:<\/strong> annealing, atmospheres, ZnO, defects, luminescence<\/p>\n<p style=\"text-align: justify;\">In the last decade, ZnO has been intensively studied as a II-VI type semiconductor thanks to its excellent electro-optic, acousto-optic and piezoelectric properties, high electric conductivity and physical as well as chemical stability. ZnO is a crystal material with wurtzite structure, its most prominent properties include wide band gap and large binding energy. Properties which are interesting for photonics include wide transparency region and high refractive index. Moreover, ZnO exhibits intrinsic photoluminescence in the UV-VIS region, which is related to ZnO crystal structure defects such as oxygen vacancies or zinc and oxygen interstitials. Recently a tailoring of the band gap of ZnO has also become an important topic since ZnO material can be utilized in new-generation nanoscale photonics devices. Multiple studies have established a relationship between oxygen defects in ZnO structure and intrinsic photoluminescence and it has also been shown that the concentration of defects may be modified by using different annealing atmospheres. However, a systematic study focusing on the creation and migration of defects in various crystallographic cuts during annealing has been so far missing in literature. In this work, we present a systematic study of the behavior of defects in different crystallographic cuts of ZnO under different annealing atmospheres and its influence on intrinsic photoluminescence.<\/p>\n<p style=\"text-align: justify;\">In our experiment, various ZnO crystallographic orientations were used, i.e.\u00a0<em>Z<\/em>\u00a0(0001), <em>X<\/em>\u00a0(11\u201120) and <em>Y<\/em>\u00a0(10\u201110). The dimensions of the samples were 1.0\u00d71.0\u00d70.3\u00a0mm. Thoroughly pre-cleaned wafers were annealed in vacuum or in oxygen and argon atmospheres for 1 hour at the temperature of 600\u00a0\u00b0C. The structural modifications of the ZnO single crystal structure after the annealing process were determined by Raman spectroscopy, X-Ray Diffraction (XRD) and Rutherford Backscattering Spectroscopy (RBS) and RBS\/Channeling measurements. Photoluminescence measurements were performed at a room temperature in the range of 250\u20131000\u00a0nm for visible and near-infrared regions (VIS-NIR). The relationship between annealing conditions, structural changes and photoluminescence was evaluated. Obtained results confirmed the possibility of modifying the photoluminescence of ZnO connected to oxygen defects by using different crystallographic cuts and annealing atmospheres.<\/p>\n<p style=\"text-align: justify;\"><strong><em>\u00a0<\/em><\/strong><strong><em>Acknowledgements<\/em><\/strong><\/p>\n<p style=\"text-align: justify;\">The research has been carried out at the CANAM (Centre of Accelerators and Nuclear Analytical Methods) infrastructure LM\u00a02015056. This work was supported by the Czech Science Foundation (GACR No.\u00a018-03346S).<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[7],"tags":[31,32,33,13,12],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>P-05 Influence of various annealing atmospheres on excitonic and defect photoluminescence properties of single-crystal ZnO - SSC 2021 : Solid State Chemistry<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/funglass.eu\/ssc2021\/advances-in-solid-state-materials-synthesis-new-solids-and-compounds-jenickova\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P-05 Influence of various annealing atmospheres on excitonic and defect photoluminescence properties of single-crystal ZnO - 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