Suzuka Noda, Yasushi Sato, Takuya Hasegawa, Masato Kakihana and Shu Yin
{"title":"阳离子氮置换激活的复合过氧化物 Pr3+ 的带隙能与光致发光特性之间的关系","authors":"Suzuka Noda, Yasushi Sato, Takuya Hasegawa, Masato Kakihana and Shu Yin","doi":"10.1039/D3NJ05682A","DOIUrl":null,"url":null,"abstract":"<p >The photoluminescence properties of f–f emission-type phosphors strongly depend on the electronic structure of the host materials. This study investigated in detail the relationship between the bandgap energy and the photoluminescence properties of Pr<small><sup>3+</sup></small>-activated CaTa<small><sub>2/3</sub></small>Mg<small><sub>1/3</sub></small>O<small><sub>3</sub></small>–CaTaO<small><sub>2</sub></small>N solid solutions. Ca<small><sub>3</sub></small>Ta<small><sub>3−<em>x</em></sub></small>Mg<small><sub><em>x</em></sub></small>O<small><sub>6+3<em>x</em></sub></small>N<small><sub>3−3<em>x</em></sub></small> (0.00 ≦ <em>x</em> ≦ 1.00) were chosen as the host materials for the approach used herein. The bandgap energy level (<em>E</em><small><sub>g</sub></small>) for the Ca<small><sub>3</sub></small>Ta<small><sub>3−<em>x</em></sub></small>Mg<small><sub><em>x</em></sub></small>O<small><sub>6+3<em>x</em></sub></small>N<small><sub>3−3<em>x</em></sub></small> solid solutions was systematically changed from 2.7 to 5.1 eV by controlling the Mg/Ta and O/N ratios. The photoluminescence excitation and emission control was systematically performed by engineering <em>E</em><small><sub>g</sub></small> for the samples. In the excitation spectra, the maximum photoluminescence excitation wavelength shifted to a shorter wavelength according to the <em>E</em><small><sub>g</sub></small> expansion. In the emission spectra, the red emission assigned to the <small><sup>1</sup></small>D<small><sub>2</sub></small>–<small><sup>3</sup></small>H<small><sub>4</sub></small> levels of Pr<small><sup>3+</sup></small> in the samples with <em>x</em> = 0.25–0.50 could be excited in near-UV light regions (350 nm) when the <em>E</em><small><sub>g</sub></small> in the host materials was adjusted to approximately 3.0 eV. Conversely, several emissions, including a green emission belonging to the <small><sup>3</sup></small>P<small><sub>0</sub></small>–<small><sup>3</sup></small>H<small><sub>4</sub></small> levels of Pr<small><sup>3+</sup></small>, were observed when the <em>E</em><small><sub>g</sub></small> of the samples with <em>x</em> = 0.75–0.95 became larger than 3.0 eV. The results indicate that the photoluminescence properties of the f–f emission-type phosphors are attributed to the <em>E</em><small><sub>g</sub></small> in the host materials.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Relationship between the bandgap energy and photoluminescence properties of Pr3+-activated complex perovskite oxides by cation–nitrogen substitution†\",\"authors\":\"Suzuka Noda, Yasushi Sato, Takuya Hasegawa, Masato Kakihana and Shu Yin\",\"doi\":\"10.1039/D3NJ05682A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The photoluminescence properties of f–f emission-type phosphors strongly depend on the electronic structure of the host materials. This study investigated in detail the relationship between the bandgap energy and the photoluminescence properties of Pr<small><sup>3+</sup></small>-activated CaTa<small><sub>2/3</sub></small>Mg<small><sub>1/3</sub></small>O<small><sub>3</sub></small>–CaTaO<small><sub>2</sub></small>N solid solutions. Ca<small><sub>3</sub></small>Ta<small><sub>3−<em>x</em></sub></small>Mg<small><sub><em>x</em></sub></small>O<small><sub>6+3<em>x</em></sub></small>N<small><sub>3−3<em>x</em></sub></small> (0.00 ≦ <em>x</em> ≦ 1.00) were chosen as the host materials for the approach used herein. The bandgap energy level (<em>E</em><small><sub>g</sub></small>) for the Ca<small><sub>3</sub></small>Ta<small><sub>3−<em>x</em></sub></small>Mg<small><sub><em>x</em></sub></small>O<small><sub>6+3<em>x</em></sub></small>N<small><sub>3−3<em>x</em></sub></small> solid solutions was systematically changed from 2.7 to 5.1 eV by controlling the Mg/Ta and O/N ratios. The photoluminescence excitation and emission control was systematically performed by engineering <em>E</em><small><sub>g</sub></small> for the samples. In the excitation spectra, the maximum photoluminescence excitation wavelength shifted to a shorter wavelength according to the <em>E</em><small><sub>g</sub></small> expansion. In the emission spectra, the red emission assigned to the <small><sup>1</sup></small>D<small><sub>2</sub></small>–<small><sup>3</sup></small>H<small><sub>4</sub></small> levels of Pr<small><sup>3+</sup></small> in the samples with <em>x</em> = 0.25–0.50 could be excited in near-UV light regions (350 nm) when the <em>E</em><small><sub>g</sub></small> in the host materials was adjusted to approximately 3.0 eV. Conversely, several emissions, including a green emission belonging to the <small><sup>3</sup></small>P<small><sub>0</sub></small>–<small><sup>3</sup></small>H<small><sub>4</sub></small> levels of Pr<small><sup>3+</sup></small>, were observed when the <em>E</em><small><sub>g</sub></small> of the samples with <em>x</em> = 0.75–0.95 became larger than 3.0 eV. The results indicate that the photoluminescence properties of the f–f emission-type phosphors are attributed to the <em>E</em><small><sub>g</sub></small> in the host materials.</p>\",\"PeriodicalId\":95,\"journal\":{\"name\":\"New Journal of Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Journal of Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/nj/d3nj05682a\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/nj/d3nj05682a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Relationship between the bandgap energy and photoluminescence properties of Pr3+-activated complex perovskite oxides by cation–nitrogen substitution†
The photoluminescence properties of f–f emission-type phosphors strongly depend on the electronic structure of the host materials. This study investigated in detail the relationship between the bandgap energy and the photoluminescence properties of Pr3+-activated CaTa2/3Mg1/3O3–CaTaO2N solid solutions. Ca3Ta3−xMgxO6+3xN3−3x (0.00 ≦ x ≦ 1.00) were chosen as the host materials for the approach used herein. The bandgap energy level (Eg) for the Ca3Ta3−xMgxO6+3xN3−3x solid solutions was systematically changed from 2.7 to 5.1 eV by controlling the Mg/Ta and O/N ratios. The photoluminescence excitation and emission control was systematically performed by engineering Eg for the samples. In the excitation spectra, the maximum photoluminescence excitation wavelength shifted to a shorter wavelength according to the Eg expansion. In the emission spectra, the red emission assigned to the 1D2–3H4 levels of Pr3+ in the samples with x = 0.25–0.50 could be excited in near-UV light regions (350 nm) when the Eg in the host materials was adjusted to approximately 3.0 eV. Conversely, several emissions, including a green emission belonging to the 3P0–3H4 levels of Pr3+, were observed when the Eg of the samples with x = 0.75–0.95 became larger than 3.0 eV. The results indicate that the photoluminescence properties of the f–f emission-type phosphors are attributed to the Eg in the host materials.