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Up-conversion luminescence of Yb super(3+) and Er super(3+) doped YPO sub(4), LaPO sub(4) and GdPO sub(4) nanocrystals
In this article we report a comparison of structural and up-conversion (UC) luminescence properties of three compounds used as hosts for Yb super(3+) and Er super(3+) ions: YPO sub(4), LaPO sub(4) and GdPO sub(4) phosphates. A co-precipitation method connected with annealing at 900 degree C was used...
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Published in: | Journal of luminescence 2016-07, Vol.175, p.21-27 |
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creator | Grzyb, Tomasz Gruszeczka, Aleksandra Lis, Stefan |
description | In this article we report a comparison of structural and up-conversion (UC) luminescence properties of three compounds used as hosts for Yb super(3+) and Er super(3+) ions: YPO sub(4), LaPO sub(4) and GdPO sub(4) phosphates. A co-precipitation method connected with annealing at 900 degree C was used in order to synthesize nanocrystalline REPO sub(4):Yb super(3+),Er super(3+) materials (RE=Y, La, Gd). The X-ray diffraction patterns collected for the prepared materials indicated their high crystallinity and phase purity for the wide range of used dopants concentrations (0.25-7.5% of Er super(3+) and 5-30% of Yb super(3+) ions). Transmission electron microscopy images showed small nanocrystal sizes: around 20 nm for YPO sub(4)-based products, 30-50 nm for LaPO sub(4) or 40-150 nm for GdPO sub(4)-based materials. The nanomaterials prepared showed yellow UC under 980 nm laser irradiation, which was assigned to Er super(3+) electronic transitions. The optimal dopants concentration were determined, giving the highest UC intensity: 25% of Yb super(3+) ions (or 20% in the case of LaPO sub(4)) and 1% of Er super(3+) ions. Also the mechanism of observed UC was analyzed. Two- and three-photon excitation and energy transfer between Yb super(3+) and Er super(3+) were confirmed. The effect of crystal cell volume on the green to red ratio of Er super(3+) UC and the presence of Er super(3+)-Er super(3+) energy transfer were found. |
doi_str_mv | 10.1016/j.jlumin.2016.02.021 |
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A co-precipitation method connected with annealing at 900 degree C was used in order to synthesize nanocrystalline REPO sub(4):Yb super(3+),Er super(3+) materials (RE=Y, La, Gd). The X-ray diffraction patterns collected for the prepared materials indicated their high crystallinity and phase purity for the wide range of used dopants concentrations (0.25-7.5% of Er super(3+) and 5-30% of Yb super(3+) ions). Transmission electron microscopy images showed small nanocrystal sizes: around 20 nm for YPO sub(4)-based products, 30-50 nm for LaPO sub(4) or 40-150 nm for GdPO sub(4)-based materials. The nanomaterials prepared showed yellow UC under 980 nm laser irradiation, which was assigned to Er super(3+) electronic transitions. The optimal dopants concentration were determined, giving the highest UC intensity: 25% of Yb super(3+) ions (or 20% in the case of LaPO sub(4)) and 1% of Er super(3+) ions. Also the mechanism of observed UC was analyzed. Two- and three-photon excitation and energy transfer between Yb super(3+) and Er super(3+) were confirmed. 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A co-precipitation method connected with annealing at 900 degree C was used in order to synthesize nanocrystalline REPO sub(4):Yb super(3+),Er super(3+) materials (RE=Y, La, Gd). The X-ray diffraction patterns collected for the prepared materials indicated their high crystallinity and phase purity for the wide range of used dopants concentrations (0.25-7.5% of Er super(3+) and 5-30% of Yb super(3+) ions). Transmission electron microscopy images showed small nanocrystal sizes: around 20 nm for YPO sub(4)-based products, 30-50 nm for LaPO sub(4) or 40-150 nm for GdPO sub(4)-based materials. The nanomaterials prepared showed yellow UC under 980 nm laser irradiation, which was assigned to Er super(3+) electronic transitions. The optimal dopants concentration were determined, giving the highest UC intensity: 25% of Yb super(3+) ions (or 20% in the case of LaPO sub(4)) and 1% of Er super(3+) ions. Also the mechanism of observed UC was analyzed. Two- and three-photon excitation and energy transfer between Yb super(3+) and Er super(3+) were confirmed. The effect of crystal cell volume on the green to red ratio of Er super(3+) UC and the presence of Er super(3+)-Er super(3+) energy transfer were found.</description><subject>Annealing</subject><subject>Coprecipitation</subject><subject>Dopants</subject><subject>Energy transfer</subject><subject>Image transmission</subject><subject>Luminescence</subject><subject>Nanocrystals</subject><subject>Upconversion</subject><issn>0022-2313</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqVjk9rwkAUxPeg4J_2G3jYY4LN9u2uDclZtB4Ee9CDJ1mTJyTE3XSfEfz2LlLaXoWB4TfMwDA2kSAkyPS9FnXTnSsrVCABKkj22BBAqURpqQdsRFQDgM6zfMiuuzYpnL2ip8pZ_pgiFWgL5O7E90dOXYs-0tOYG1vyhf8XlK7Fku-_NiE7RrP4ja_NLzzqn-UfW2Nd4W90MQ29sP4pGL7--JhFy8V2vkpa7747pMvhXIUXTWMsuo4OMpMpfOSgM_1E9Q7uXlLG</recordid><startdate>20160701</startdate><enddate>20160701</enddate><creator>Grzyb, Tomasz</creator><creator>Gruszeczka, Aleksandra</creator><creator>Lis, Stefan</creator><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20160701</creationdate><title>Up-conversion luminescence of Yb super(3+) and Er super(3+) doped YPO sub(4), LaPO sub(4) and GdPO sub(4) nanocrystals</title><author>Grzyb, Tomasz ; Gruszeczka, Aleksandra ; Lis, Stefan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_18160590383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Annealing</topic><topic>Coprecipitation</topic><topic>Dopants</topic><topic>Energy transfer</topic><topic>Image transmission</topic><topic>Luminescence</topic><topic>Nanocrystals</topic><topic>Upconversion</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Grzyb, Tomasz</creatorcontrib><creatorcontrib>Gruszeczka, Aleksandra</creatorcontrib><creatorcontrib>Lis, Stefan</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of luminescence</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Grzyb, Tomasz</au><au>Gruszeczka, Aleksandra</au><au>Lis, Stefan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Up-conversion luminescence of Yb super(3+) and Er super(3+) doped YPO sub(4), LaPO sub(4) and GdPO sub(4) nanocrystals</atitle><jtitle>Journal of luminescence</jtitle><date>2016-07-01</date><risdate>2016</risdate><volume>175</volume><spage>21</spage><epage>27</epage><pages>21-27</pages><issn>0022-2313</issn><abstract>In this article we report a comparison of structural and up-conversion (UC) luminescence properties of three compounds used as hosts for Yb super(3+) and Er super(3+) ions: YPO sub(4), LaPO sub(4) and GdPO sub(4) phosphates. A co-precipitation method connected with annealing at 900 degree C was used in order to synthesize nanocrystalline REPO sub(4):Yb super(3+),Er super(3+) materials (RE=Y, La, Gd). The X-ray diffraction patterns collected for the prepared materials indicated their high crystallinity and phase purity for the wide range of used dopants concentrations (0.25-7.5% of Er super(3+) and 5-30% of Yb super(3+) ions). Transmission electron microscopy images showed small nanocrystal sizes: around 20 nm for YPO sub(4)-based products, 30-50 nm for LaPO sub(4) or 40-150 nm for GdPO sub(4)-based materials. The nanomaterials prepared showed yellow UC under 980 nm laser irradiation, which was assigned to Er super(3+) electronic transitions. The optimal dopants concentration were determined, giving the highest UC intensity: 25% of Yb super(3+) ions (or 20% in the case of LaPO sub(4)) and 1% of Er super(3+) ions. Also the mechanism of observed UC was analyzed. Two- and three-photon excitation and energy transfer between Yb super(3+) and Er super(3+) were confirmed. The effect of crystal cell volume on the green to red ratio of Er super(3+) UC and the presence of Er super(3+)-Er super(3+) energy transfer were found.</abstract><doi>10.1016/j.jlumin.2016.02.021</doi></addata></record> |
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subjects | Annealing Coprecipitation Dopants Energy transfer Image transmission Luminescence Nanocrystals Upconversion |
title | Up-conversion luminescence of Yb super(3+) and Er super(3+) doped YPO sub(4), LaPO sub(4) and GdPO sub(4) nanocrystals |
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