Blue Emitting Ca8La2(PO4)6O2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties
Ce3+ and/or Eu2+ activated Ca8La2(PO4)6O2 (CLPA) oxyapatite blue phosphors have been prepared via a Pechini-type sol–gel process. X-ray diffraction (XRD), photoluminescence (PL) spectra, absolute quantum yield, as well as lifetimes were utilized to characterize samples. The emission of Ce3+ and Eu2+...
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| Veröffentlicht in: | Journal of physical chemistry. C 2012-05, Vol.116 (18), p.10222-10231 |
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| container_title | Journal of physical chemistry. C |
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| creator | Shang, Mengmeng Li, Guogang Geng, Dongling Yang, Dongmei Kang, Xiaojiao Zhang, Yang Lian, Hongzhou Lin, Jun |
| description | Ce3+ and/or Eu2+ activated Ca8La2(PO4)6O2 (CLPA) oxyapatite blue phosphors have been prepared via a Pechini-type sol–gel process. X-ray diffraction (XRD), photoluminescence (PL) spectra, absolute quantum yield, as well as lifetimes were utilized to characterize samples. The emission of Ce3+ and Eu2+ ions at different lattice sites has been identified and discussed. The CLPA:0.04Ce3+ phosphor exhibits bright blue emission with higher quantum yield (67%) and excellent CIE coordinates (x = 0.160, y = 0.115) under UV excitation, and the CLPA:0.05Eu2+ phosphor also exhibits blue emission with CIE coordinates (0.187, 0.164). The energy transfer from Ce3+ to Eu2+ in CLPA:Ce3+/Eu2+ phosphors has been validated and demonstrated to be a resonant type via a dipole–dipole mechanism. The critical distance (R c) of Ce3+ to Eu2+ ions in CLPA was calculated (by the spectral overlap method) to be 26.67 Å. The quantum yields of Ce3+ and Eu2+ coactivated CLPA phosphors are enhanced compared with that of Eu2+ activated samples due to energy transfer. The CIE coordinates of CLPA:0.04Ce3+, 0.02Eu2+ are (0.179, 0.169). The corresponding luminescence and energy transfer mechanisms have been proposed in detail. These blue phosphors might be promising for use in pc-white LEDs. |
| doi_str_mv | 10.1021/jp302252k |
| format | Article |
| fullrecord | <record><control><sourceid>acs_pasca</sourceid><recordid>TN_cdi_pascalfrancis_primary_25895397</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>c177109019</sourcerecordid><originalsourceid>FETCH-LOGICAL-a145t-36aa19324ed4958782d73e44c0b13b739858afbf256a18ea2ffbdeb9035cb2713</originalsourceid><addsrcrecordid>eNpFkd1Kw0AQhYMoWKsXvsHeCEobuz_ZJumdjdEKgRZa8TJsktlma5uE3Q2SZ_IlTVX0aoY5M4dvOI5zTfA9wZRMdg3DlHL6fuIMSMio63ucn_71nn_uXBizw5gzTNjA-ZzvW0DxQVmrqi2KRJAIertaenfTJZ1FwEaTuKUjtCpr05S1NuhD2RIt1LZEUb2vNVq1WtkOiapAc92PbQXGINkrb6WygJL4cYbWtbRuVMJB5WKP1l1lSzDKjFHSHlR_kEOVw_jbJK5Abzu00aIyEnp_XTegrQJz6ZxJsTdw9VuHzutTvIkWbrJ8fokeElcQj1uXTYU4vutB4YU88ANa-Aw8L8cZYZnPwoAHQmaS8qkgAQgqZVZAFmLG84z6hA2dmx_fRpgeV_YkuTJpo9VB6C6lPAg5C_3_PZGbdFe3uuqpUoLTYxLpXxLsC8zterw</addsrcrecordid><sourcetype>Index Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Blue Emitting Ca8La2(PO4)6O2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties</title><source>ACS Publications</source><creator>Shang, Mengmeng ; Li, Guogang ; Geng, Dongling ; Yang, Dongmei ; Kang, Xiaojiao ; Zhang, Yang ; Lian, Hongzhou ; Lin, Jun</creator><creatorcontrib>Shang, Mengmeng ; Li, Guogang ; Geng, Dongling ; Yang, Dongmei ; Kang, Xiaojiao ; Zhang, Yang ; Lian, Hongzhou ; Lin, Jun</creatorcontrib><description>Ce3+ and/or Eu2+ activated Ca8La2(PO4)6O2 (CLPA) oxyapatite blue phosphors have been prepared via a Pechini-type sol–gel process. X-ray diffraction (XRD), photoluminescence (PL) spectra, absolute quantum yield, as well as lifetimes were utilized to characterize samples. The emission of Ce3+ and Eu2+ ions at different lattice sites has been identified and discussed. The CLPA:0.04Ce3+ phosphor exhibits bright blue emission with higher quantum yield (67%) and excellent CIE coordinates (x = 0.160, y = 0.115) under UV excitation, and the CLPA:0.05Eu2+ phosphor also exhibits blue emission with CIE coordinates (0.187, 0.164). The energy transfer from Ce3+ to Eu2+ in CLPA:Ce3+/Eu2+ phosphors has been validated and demonstrated to be a resonant type via a dipole–dipole mechanism. The critical distance (R c) of Ce3+ to Eu2+ ions in CLPA was calculated (by the spectral overlap method) to be 26.67 Å. The quantum yields of Ce3+ and Eu2+ coactivated CLPA phosphors are enhanced compared with that of Eu2+ activated samples due to energy transfer. The CIE coordinates of CLPA:0.04Ce3+, 0.02Eu2+ are (0.179, 0.169). The corresponding luminescence and energy transfer mechanisms have been proposed in detail. These blue phosphors might be promising for use in pc-white LEDs.</description><identifier>ISSN: 1932-7447</identifier><identifier>EISSN: 1932-7455</identifier><identifier>DOI: 10.1021/jp302252k</identifier><language>eng</language><publisher>Columbus, OH: American Chemical Society</publisher><subject>Applied sciences ; Chemical synthesis methods ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Cross-disciplinary physics: materials science; rheology ; Electronics ; Exact sciences and technology ; Materials science ; Methods of nanofabrication ; Nanoscale materials and structures: fabrication and characterization ; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation ; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures ; Optoelectronic devices ; Physics ; Quantum wells ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><ispartof>Journal of physical chemistry. C, 2012-05, Vol.116 (18), p.10222-10231</ispartof><rights>Copyright © 2012 American Chemical Society</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/jp302252k$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/jp302252k$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,27074,27922,27923,56736,56786</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25895397$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Shang, Mengmeng</creatorcontrib><creatorcontrib>Li, Guogang</creatorcontrib><creatorcontrib>Geng, Dongling</creatorcontrib><creatorcontrib>Yang, Dongmei</creatorcontrib><creatorcontrib>Kang, Xiaojiao</creatorcontrib><creatorcontrib>Zhang, Yang</creatorcontrib><creatorcontrib>Lian, Hongzhou</creatorcontrib><creatorcontrib>Lin, Jun</creatorcontrib><title>Blue Emitting Ca8La2(PO4)6O2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties</title><title>Journal of physical chemistry. C</title><addtitle>J. Phys. Chem. C</addtitle><description>Ce3+ and/or Eu2+ activated Ca8La2(PO4)6O2 (CLPA) oxyapatite blue phosphors have been prepared via a Pechini-type sol–gel process. X-ray diffraction (XRD), photoluminescence (PL) spectra, absolute quantum yield, as well as lifetimes were utilized to characterize samples. The emission of Ce3+ and Eu2+ ions at different lattice sites has been identified and discussed. The CLPA:0.04Ce3+ phosphor exhibits bright blue emission with higher quantum yield (67%) and excellent CIE coordinates (x = 0.160, y = 0.115) under UV excitation, and the CLPA:0.05Eu2+ phosphor also exhibits blue emission with CIE coordinates (0.187, 0.164). The energy transfer from Ce3+ to Eu2+ in CLPA:Ce3+/Eu2+ phosphors has been validated and demonstrated to be a resonant type via a dipole–dipole mechanism. The critical distance (R c) of Ce3+ to Eu2+ ions in CLPA was calculated (by the spectral overlap method) to be 26.67 Å. The quantum yields of Ce3+ and Eu2+ coactivated CLPA phosphors are enhanced compared with that of Eu2+ activated samples due to energy transfer. The CIE coordinates of CLPA:0.04Ce3+, 0.02Eu2+ are (0.179, 0.169). The corresponding luminescence and energy transfer mechanisms have been proposed in detail. These blue phosphors might be promising for use in pc-white LEDs.</description><subject>Applied sciences</subject><subject>Chemical synthesis methods</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Materials science</subject><subject>Methods of nanofabrication</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</subject><subject>Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures</subject><subject>Optoelectronic devices</subject><subject>Physics</subject><subject>Quantum wells</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><issn>1932-7447</issn><issn>1932-7455</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNpFkd1Kw0AQhYMoWKsXvsHeCEobuz_ZJumdjdEKgRZa8TJsktlma5uE3Q2SZ_IlTVX0aoY5M4dvOI5zTfA9wZRMdg3DlHL6fuIMSMio63ucn_71nn_uXBizw5gzTNjA-ZzvW0DxQVmrqi2KRJAIertaenfTJZ1FwEaTuKUjtCpr05S1NuhD2RIt1LZEUb2vNVq1WtkOiapAc92PbQXGINkrb6WygJL4cYbWtbRuVMJB5WKP1l1lSzDKjFHSHlR_kEOVw_jbJK5Abzu00aIyEnp_XTegrQJz6ZxJsTdw9VuHzutTvIkWbrJ8fokeElcQj1uXTYU4vutB4YU88ANa-Aw8L8cZYZnPwoAHQmaS8qkgAQgqZVZAFmLG84z6hA2dmx_fRpgeV_YkuTJpo9VB6C6lPAg5C_3_PZGbdFe3uuqpUoLTYxLpXxLsC8zterw</recordid><startdate>20120510</startdate><enddate>20120510</enddate><creator>Shang, Mengmeng</creator><creator>Li, Guogang</creator><creator>Geng, Dongling</creator><creator>Yang, Dongmei</creator><creator>Kang, Xiaojiao</creator><creator>Zhang, Yang</creator><creator>Lian, Hongzhou</creator><creator>Lin, Jun</creator><general>American Chemical Society</general><scope>IQODW</scope></search><sort><creationdate>20120510</creationdate><title>Blue Emitting Ca8La2(PO4)6O2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties</title><author>Shang, Mengmeng ; Li, Guogang ; Geng, Dongling ; Yang, Dongmei ; Kang, Xiaojiao ; Zhang, Yang ; Lian, Hongzhou ; Lin, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a145t-36aa19324ed4958782d73e44c0b13b739858afbf256a18ea2ffbdeb9035cb2713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Chemical synthesis methods</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Materials science</topic><topic>Methods of nanofabrication</topic><topic>Nanoscale materials and structures: fabrication and characterization</topic><topic>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</topic><topic>Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures</topic><topic>Optoelectronic devices</topic><topic>Physics</topic><topic>Quantum wells</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shang, Mengmeng</creatorcontrib><creatorcontrib>Li, Guogang</creatorcontrib><creatorcontrib>Geng, Dongling</creatorcontrib><creatorcontrib>Yang, Dongmei</creatorcontrib><creatorcontrib>Kang, Xiaojiao</creatorcontrib><creatorcontrib>Zhang, Yang</creatorcontrib><creatorcontrib>Lian, Hongzhou</creatorcontrib><creatorcontrib>Lin, Jun</creatorcontrib><collection>Pascal-Francis</collection><jtitle>Journal of physical chemistry. C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shang, Mengmeng</au><au>Li, Guogang</au><au>Geng, Dongling</au><au>Yang, Dongmei</au><au>Kang, Xiaojiao</au><au>Zhang, Yang</au><au>Lian, Hongzhou</au><au>Lin, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Blue Emitting Ca8La2(PO4)6O2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties</atitle><jtitle>Journal of physical chemistry. C</jtitle><addtitle>J. Phys. Chem. C</addtitle><date>2012-05-10</date><risdate>2012</risdate><volume>116</volume><issue>18</issue><spage>10222</spage><epage>10231</epage><pages>10222-10231</pages><issn>1932-7447</issn><eissn>1932-7455</eissn><abstract>Ce3+ and/or Eu2+ activated Ca8La2(PO4)6O2 (CLPA) oxyapatite blue phosphors have been prepared via a Pechini-type sol–gel process. X-ray diffraction (XRD), photoluminescence (PL) spectra, absolute quantum yield, as well as lifetimes were utilized to characterize samples. The emission of Ce3+ and Eu2+ ions at different lattice sites has been identified and discussed. The CLPA:0.04Ce3+ phosphor exhibits bright blue emission with higher quantum yield (67%) and excellent CIE coordinates (x = 0.160, y = 0.115) under UV excitation, and the CLPA:0.05Eu2+ phosphor also exhibits blue emission with CIE coordinates (0.187, 0.164). The energy transfer from Ce3+ to Eu2+ in CLPA:Ce3+/Eu2+ phosphors has been validated and demonstrated to be a resonant type via a dipole–dipole mechanism. The critical distance (R c) of Ce3+ to Eu2+ ions in CLPA was calculated (by the spectral overlap method) to be 26.67 Å. The quantum yields of Ce3+ and Eu2+ coactivated CLPA phosphors are enhanced compared with that of Eu2+ activated samples due to energy transfer. The CIE coordinates of CLPA:0.04Ce3+, 0.02Eu2+ are (0.179, 0.169). The corresponding luminescence and energy transfer mechanisms have been proposed in detail. These blue phosphors might be promising for use in pc-white LEDs.</abstract><cop>Columbus, OH</cop><pub>American Chemical Society</pub><doi>10.1021/jp302252k</doi><tpages>10</tpages></addata></record> |
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| subjects | Applied sciences Chemical synthesis methods Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Electronics Exact sciences and technology Materials science Methods of nanofabrication Nanoscale materials and structures: fabrication and characterization Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures Optoelectronic devices Physics Quantum wells Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices |
| title | Blue Emitting Ca8La2(PO4)6O2:Ce3+/Eu2+ Phosphors with High Color Purity and Brightness for White LED: Soft-Chemical Synthesis, Luminescence, and Energy Transfer Properties |
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