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1¡¢The crystal structural characterization and phase identification of the as-prepared samples were checked by using a PANalytical X'Pert Pro X-ray diffractometer (XRD) with Cu-K1 radiation (=0.154187 nm) for 2¦È ranging from 10 to 80¡ã. 2¡¢It can be clearly seen that the excitation spectra of MWO4:Sm3+ phosphor consist of a broad band from 220 to 300 nm, which is ascribed to the transition from the 1A1 ground-state to the high vibration level of 1T2 within the WO42- group [27]. |
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sltmac: ½ð±Ò+1 2012-05-10 09:15:20
sltmac: ½ð±Ò+2 2012-05-26 10:56:02
sltmac: ½ð±Ò+1 2012-05-10 09:15:20
sltmac: ½ð±Ò+2 2012-05-26 10:56:02
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1£¬×¼±¸µÄÑùÆ·¾§Ìå½á¹¹ÌØÕ÷ºÍÏàÐÔÓÉXRD¼ì²â£¬¼ì²â¹ý³Ì¹ý³ÌÖн«Cu-K1µÄ°ë¾¶¼Ð½Ç2¦È´Ó10¶Èµ÷µ½80¶È¡£ 2£¬ºÜÃ÷ÏÔ´ÓSm3+µÄMWO4Æ×ͼÖпÉÖªPµÄ³É·Ö´Ó220nmµ½300nm²»µÈ£¬Ö÷ÒªÓÉÓÚËü´Ó1A1µÄ»ù̬ת±äµ½´øÓÐWO4»ùµÄ1T2¸ßÄÜ̬¡£ |

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sltmac: ½ð±Ò+1 2012-05-10 09:15:24
sltmac: ½ð±Ò+3, ·ÒëEPI+1 2012-05-26 10:56:06
sltmac: ½ð±Ò+1 2012-05-10 09:15:24
sltmac: ½ð±Ò+3, ·ÒëEPI+1 2012-05-26 10:56:06
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as-prepared samples ΪËùÖÆ±¸µÄÑùÆ· ËùÖÆ±¸µÄÑùÆ·¾§Ìå½á¹¹ÌصãºÍ¾§ÏàʹÓÃPANalytical X'Pert Pro £¨ÎªÐͺţ¬²»×ö·Ò룩XÉäÏßÑÜÉäÒǼì²â£¬ÓÃCuK1ÉäÏߣ¨=0.154187 nm£©ÔÚ2¦È´Ó10¶Èµ½80¶ÈɨÃè ¿ÉÒÔÃ÷ÏԵĿ´³öMWO4µÄ¼¤·¢¹âÆ×ͼ£ºSm3+Ó«¹âÌåµÄ¹âÆ×´øÎª220nmµ½300nm£¬ÕâÊÇÓÉÓÚËüÔÚ WO42×éÄÚÓÉ1A1µÄ»ù̬ԾǨµ½µ½1T2¸ßÄÜ̬¡£ |

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