| DC 欄位 |
值 |
語言 |
| DC.contributor | 化學學系 | zh_TW |
| DC.creator | 林士群 | zh_TW |
| DC.creator | Shih-Chun Lin | en_US |
| dc.date.accessioned | 2017-7-21T07:39:07Z | |
| dc.date.available | 2017-7-21T07:39:07Z | |
| dc.date.issued | 2017 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=104223058 | |
| dc.contributor.department | 化學學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 本論文使用中溫水熱法合成實驗所需之配位聚合物R2(C8H10O4)，配位基為1, 4-cyclohexanedicarboxylate (C8H10O4, CHDC)，而配位中心則是不同比例的稀土元素釔(Yttrium, Y)、鋱(Terbium, Tb)及釤(Samarium, Sm) (R = Y, Tb, Sm)。以單晶X光繞射(XRD)與粉末X光繞射(PXRD)確認其結構以及純度，以感應耦合電漿原子發射光譜(ICP-AES)確認配位中心稀土元素之確切比例。我們使用光致放光譜、激發光譜以及時間解析等光譜資訊去研究能量轉移的過程。分析YxSmyTb2-x-y(CHDC)3化合物中Sm3+放光衰退曲線後發現其中存在兩種淬熄機制。第一種淬熄機制是與含Y的物種有關，第二種淬熄機制則正比於化合物中Sm3+的濃度。這類化合物中所有的Sm3+放光衰退曲線皆能吻合一個三維能量轉移的動力學模型。並可求得相關的速率常數以及能量轉移參數。 | zh_TW |
| dc.description.abstract | Mid-temperature hydrothermal method was adopted to synthesize the coordination polymers, R2(C8H10O4)3, with 1,4-cyclohexanedicarboxylate (C8H10O4, CHDC) ligands and different compositions of rare earth elements (R= Y, Tb, and Sm) for this study. Single crystal and powder X-ray diffraction (XRD) data of these compounds were acquired for confirming their structure and purity, while inductively-coupled plasma atomic emission spectra (ICP-AES) were also obtained to verify the exact compositions of rare earth elements. The spectroscopic data including photoluminescence (PL), excitation, and time-resolved spectra were acquired for investigating the energy transfer processes. The analysis of Sm3+ decay curves in YxSmyTb2-x-y(CHDC)3 reveals two quenching mechanisms. The first quenching process is related to some yttrium-containing species, and the second quenching process is proportional to the Sm3+ concentration. All of the Sm3+ decay curves in these compounds can be well fit by a kinetic model based on three dimensional energy transfer. The related rate constants and energy transfer parameters are determined and explained. | en_US |
| DC.subject | 釔釤 | zh_TW |
| DC.subject | 光譜 | zh_TW |
| DC.subject | 淬熄 | zh_TW |
| DC.subject | Yttrium | en_US |
| DC.subject | Spectroscopic study | en_US |
| DC.subject | quench | en_US |
| DC.title | 以光譜學方法研究含釔釤元素之配位化合物的淬熄效應 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Spectroscopic Study of Quenching Mechanisms in the Coordination Compounds Containing Yttrium | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |