24小时热门版块排行榜    

北京石油化工学院2026年研究生招生接收调剂公告
查看: 667  |  回复: 3
本帖产生 1 个 翻译EPI ,点击这里进行查看

难慰平生

金虫 (小有名气)

[求助] bb来之不易啊!50币求翻译个摘要!

求求大神们啊!!!
bb来之不易啊!50币求翻译个摘要!
2014-02-25_201222.JPG

» 猜你喜欢

难慰平生
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

RXMCDM

版主 (文坛精英)

优秀版主优秀版主优秀版主

要翻的话复制后传上来,要不翻译后有些东西打不出来,很费劲。同时保留截图,以免复制出错。
2楼2014-02-25 23:49:09
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

难慰平生

金虫 (小有名气)

引用回帖:
2楼: Originally posted by RXMCDM at 2014-02-25 23:49:09
要翻的话复制后传上来,要不翻译后有些东西打不出来,很费劲。同时保留截图,以免复制出错。

Synthesis, X-ray diffraction and photoluminescence investigations of Eu3+ -doped SrBPO5phosphor has been carried out in order to characterize the material. PL emission spectrum of air heated SrBPO5:Eu3+ phosphor exhibits bands at 590, 614, 651 and 702 nm under 238 nm excitation, assigned to the 5D0-7FJ (J¼1, 2, 3, 4) transitions of Eu3+ ions. Of these transitions, the emission centered at 614 nm is the most prominent. Photoluminescence decay time and Time-resolved emission spectrometric (TRES) studies of Eu3+ were carried out with lem= 614 nm and lex=238 nm. It suggested that Eu3+ ions are present at two different sites and predominantly occupying Sr2+ sites in the host lattice. Judd–Ofelt intensity parameters and other radiative properties were evaluated from the emission spectrum by adopting standard procedure. The trend observed in the J–O parameters (O24O4) confirms the covalency exiting between the Eu
3+ ion and ligands as well as the asymmetry around the metal ion site. The color coordinates of the system were evaluated (x=0.558 and y=0.355) and plotted on a standard CIE index diagram. The observations showed that the SrBPO5:Eu3+ phosphor is very close to the red emission material. Photoluminescence intensity was compared with that of a commercial red phosphor for commercial utility purpose. It is observed that, the photoluminescence intensity of the prepared phosphor was 60% as compared to the commercial phosphor Y2O3: Eu.
难慰平生
3楼2014-02-26 11:32:04
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

RXMCDM

版主 (文坛精英)

优秀版主优秀版主优秀版主

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
难慰平生: 金币+60, 翻译EPI+1, ★★★★★最佳答案, 句子不是很通顺,不过比我自己翻译的好多了,那些专业词汇我都翻译不出。哎,都没人翻译了,最佳答案给你啦!谢谢!!! 2014-02-27 11:01:34
为表征经空气加热的SrBPO5:Eu3 +荧光粉材料的PL发射光谱,我们对Eu3 +的掺杂SrBPO5荧光粉进行合成、X射线衍射和光致发光研究。结果表明,在238nm激发后,发射谱带处于590,614,651和702 nm处,属于铕离子的5D0-7FJ(j= 1,2,3,4)跃迁。这些跃迁中,集中在614 nm处的发射最突出。我们在LEM=614纳米和lex=238 nm处对Eu3 +离子的光致发光衰减时间和时间分辨发射光谱(TRES)研究结果表明,Eu3 +离子存在于两个不同的点阵位,在主晶格主要占领Sr2+的点阵位。采用标准方法对Judd-Ofelt强度参数和其他辐射特性通过发射光谱进行了研究。J-O参数(O24O4)观察到的趋势印证了除外围绕该金属离子点阵的不对称性,Eu3 +离子和配体共价 。对系统的颜色一致性进行了评价(X =0.558和y=0.355),并绘制在标准CIE指数图上。观测表明,SrBPO5:Eu3 +的荧光体与红色发光材料非常接近。光致发光强度与使用于商业目的的商用红色荧光粉进行比较。据观察,与商业荧光粉Y2O3:Eu比较时,制得的荧光粉的光致发光强度为60%。
O24O4为复制后引起的改变,自己根据原文重新修改,类似的还有5D0-7FJ(j= 1,2,3,4)等。
4楼2014-02-27 00:35:57
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 难慰平生 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 272分求调剂 +4 wangyile2233 2026-04-02 4/200 2026-04-05 22:21 by 286640313
[考研] 材料专硕283求调剂 +14 试试看呗 2026-04-04 15/750 2026-04-05 19:21 by jkddd
[考研] 一志愿同济大学323分(080500)求调剂 +8 yikeniu 2026-04-01 8/400 2026-04-05 18:15 by cql1109
[考研] 295求调剂 +10 xndjjj 2026-04-04 10/500 2026-04-05 11:19 by 猪会飞
[考研] 环境科学与工程334分求调剂 +9 王一一依依 2026-03-30 12/600 2026-04-04 20:55 by dongzh2009
[考研] 085600,320分求调剂 +14 大馋小子 2026-04-04 15/750 2026-04-04 16:27 by 无际的草原
[考研] 材料科学与工程考研 +10 拯救皮特托先生 2026-04-02 10/500 2026-04-03 23:57 by userper
[考研] 材料调剂 +4 一样YWY 2026-04-03 4/200 2026-04-03 09:48 by 蓝云思雨
[考研] 一志愿复旦材料,英一专硕,总分357调剂 +4 1050389037 2026-04-02 5/250 2026-04-02 21:40 by dongzh2009
[考研] 318求调剂 +3 笃行致远. 2026-03-31 4/200 2026-04-02 15:56 by Jaylen.
[考博] 材料工程专业硕士申博 +3 麟正宇 2026-03-30 3/150 2026-04-02 15:04 by greychen00
[考研] 能源动力 调剂 +3 不破不立0 2026-04-02 3/150 2026-04-02 12:46 by ffffjjjj
[考研] 一志愿北交大材料工程总分358 +3 cs0106 2026-04-02 5/250 2026-04-02 11:37 by olim
[考研] 【求调剂】新能源材料本科,一志愿211,初试321 +6 求调剂学校, 2026-04-02 6/300 2026-04-02 09:41 by 晴空210210
[考研] 考研调剂 +12 Amber00 2026-03-31 12/600 2026-04-02 09:04 by sanrepian
[考研] 一志愿安徽大学计算机科学与技术学硕,331分求调剂 +5 蒋昌鹏qtj 2026-04-01 5/250 2026-04-02 08:10 by fxue1114
[考研] 085410 一志愿211 22408分数359求调剂 +3 123456789qw 2026-03-31 4/200 2026-04-02 00:06 by 义文wang
[考研] 求调剂 +4 图鉴212 2026-03-30 5/250 2026-04-01 15:32 by 图鉴212
[考研] 英一数一总分334求调剂 +4 陈阳坤 2026-03-31 4/200 2026-03-31 14:22 by 记事本2026
[考研] 调剂 +4 GK72 2026-03-30 4/200 2026-03-30 20:32 by dick_runner
信息提示
请填处理意见