本文選題：過渡金屬離子 + 碲酸鹽玻璃　； 參考：《河北大學(xué)》2015年碩士論文

【摘要】：本論文分別采用水熱法和高溫固相法合成了氧化鋁和鋁酸釔為基質(zhì)的熒光材料,并將其摻入到碲酸鹽玻璃和有機(jī)玻璃中制得發(fā)光玻璃。分析了樣品的晶體結(jié)構(gòu),通過改變摻雜濃度對(duì)其發(fā)光性質(zhì)進(jìn)行了研究,其主要內(nèi)容如下:(1)采用水熱法制備了Al_2O_3:Cr~(3+)納米熒光粉。分析了樣品的晶體結(jié)構(gòu)和發(fā)光性質(zhì)。測量樣品的激發(fā)譜,得到了兩個(gè)寬帶激發(fā)峰,其激發(fā)峰峰值位于405 nm和557 nm。分別用405 nm和557 nm光激發(fā)樣品,得到一個(gè)窄帶的發(fā)射光譜,發(fā)射峰峰值位于698 nm。Al_2O_3:Cr~(3+)納米熒光粉寬帶吸收、窄帶發(fā)射的光譜特性可應(yīng)用于提高太陽能電池效率和促進(jìn)農(nóng)作物生長上。進(jìn)一步研究了Al_2O_3:Cr~(3+)納米熒光粉應(yīng)用于太陽能電池和農(nóng)業(yè)薄膜的可行性。制備了摻Al_2O_3:Cr~(3+)納米熒光粉的碲酸鹽無機(jī)玻璃、有機(jī)玻璃和聚乙烯膜。通過測試XRD、激發(fā)譜和發(fā)射譜,證明了摻Al_2O_3:Cr~(3+)納米熒光粉的發(fā)光玻璃保持了Al_2O_3:Cr~(3+)納米熒光粉的發(fā)光特性。測量了不同Al_2O_3:Cr~(3+)熒光粉摻雜濃度的碲酸鹽玻璃應(yīng)用于多晶硅太陽能電池的外量子效率和光伏參數(shù),得出Al_2O_3:Cr~(3+)摻雜濃度為0.5%的碲酸鹽玻璃能有效的提高太陽能電池效率。(2)采用固相法制備了Y_3Al_5O_12:Mn~(4+)熒光粉。測量激發(fā)譜和發(fā)射譜得出Y_3Al_5O_12:Mn~(4+)熒光粉存在兩個(gè)寬帶激發(fā)峰和窄帶發(fā)射峰。Y_3Al_5O_12:Mn~(4+)熒光粉的寬帶吸收、窄帶發(fā)射的光譜特性可應(yīng)用于提高太陽能電池效率和促進(jìn)農(nóng)作物生長上。進(jìn)一步研究Y_3Al_5O_12:Mn~(4+)熒光粉提高太陽能電池效率和促進(jìn)農(nóng)作物生長的可行性,制備了摻Y(jié)_3Al_5O_12:Mn~(4+)熒光粉的碲酸鹽無機(jī)玻璃和有機(jī)玻璃。通過測試XRD、激發(fā)譜和發(fā)射譜,證明了摻Y(jié)_3Al_5O_12:Mn~(4+)熒光粉的發(fā)光玻璃保持了Y_3Al_5O_12:Mn~(4+)的發(fā)光特性,進(jìn)一步說明了摻Y(jié)_3Al_5O_12:Mn~(4+)熒光粉的碲酸鹽無機(jī)玻璃和有機(jī)玻璃對(duì)于提高太陽能電池效率和促進(jìn)農(nóng)作物生長具有潛在的應(yīng)用。
[Abstract]:In this paper, the luminescent materials of alumina and yttrium aluminate were synthesized by hydrothermal method and high temperature solid state method respectively, and doped into tellurite glass and plexiglass to produce luminescent glass. The crystal structure of the samples was analyzed and the luminescent properties of the samples were studied by changing the doping concentration. The main contents are as follows: 1) Al_2O_3:Cr~(3) nanocrystalline phosphors were prepared by hydrothermal method. The crystal structure and luminescence properties of the samples were analyzed. The excitation spectra of the samples were measured and two broad band excitation peaks were obtained. The excitation peaks were located at 405 nm and 557 nm. A narrow-band emission spectrum was obtained by excitation of the samples at 405nm and 557nm, respectively. The emission peak was located at 698 nm.Al_2O_3:Cr~(3) and the emission peak was at 698 nm.Al_2O_3:Cr~(3). The spectral characteristics of narrowband emission can be used to improve the efficiency of solar cells and promote the growth of crops. The feasibility of the application of Al_2O_3:Cr~(3 nano-phosphors to solar cells and agricultural thin films was further studied. Inorganic tellurite glass, organic glass and polyethylene film doped with Al_2O_3:Cr~(3) were prepared. By testing XRD, excitation and emission spectra, it is proved that the luminescent glass doped with Al_2O_3:Cr~(3) keeps the luminescence characteristics of Al_2O_3:Cr~(3) nano-phosphors. The external quantum efficiency and photovoltaic parameters of different Al_2O_3:Cr~(3) doped tellurite glasses for polysilicon solar cells were measured. The results showed that Al_2O_3:Cr~(3 (0.5%) doped tellurite glass could effectively improve the efficiency of solar cells. The Y_3Al_5O_12:Mn~(4) phosphors were prepared by solid phase method. The measurement of excitation and emission spectra shows that there are two broadband excitation peaks and narrow-band emission peaks in Y_3Al_5O_12:Mn~(4) phosphors. The broad band absorption of phosphors is obtained. The spectral characteristics of narrowband emission can be used to improve the efficiency of solar cells and to promote the growth of crops. The feasibility of Y_3Al_5O_12:Mn~(4 phosphors to improve the efficiency of solar cells and promote the growth of crops was studied. Inorganic tellurite glasses and plexiglass doped with Y_3Al_5O_12:Mn~(4 phosphors were prepared. By testing the XRD, excitation and emission spectra, it is proved that the luminescent glass doped with Y_3Al_5O_12:Mn~(4) keeps the luminescence characteristics of Y_3Al_5O_12:Mn~(4). It is further explained that inorganic tellurite glass and plexiglass doped with Y_3Al_5O_12:Mn~(4) have potential applications in improving the efficiency of solar cells and promoting the growth of crops.
【學(xué)位授予單位】：河北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ171.112

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