ZnIn2S4螢光粉製備與發光特性之研究及其在單晶矽太陽能電池應用

Preparation and Luminescence of ZnIn2S4 phosphor powders for Application in Silicon-Based Solar Cells.

林佳民(Jia-Min Lin)

指導教授 ： 雷伯薰

共同指導教授 ： 姬梁文

國立虎尾科技大學/電機資訊學院/光電與材料科技研究所/碩士(2013年)

摘要

微波加熱技術具有加熱速度快、加熱均勻、加熱效率高、以及高速響應性等優點，因此近來被廣泛的使用。。
本研究以微波水熱法成功合成了In2S3、ZnIn2S4、ZnIn2S4:Eu、ZnIn2S4:Ce等四種不同發光顏色硫屬螢光粉。並利用X光繞射、掃描式電子顯微鏡、螢光光譜儀、紫外光-可見光分光光譜儀以及高解析穿透式電子顯微鏡對上述螢光粉進行晶相結構與純度，表面形態與發光特性分析鑑定。並擇優應用於太陽能電池轉換效率。
第一部分:合成出來的In2S3螢光粉，固定激發244nm可以得到發散波峰在396nm，經由XRD量測可得知為β相結構，經由計算其能隙大約為2.1eV。
第二部分:合成出來的ZnIn2S4螢光粉，固定激發306nm可以得到發散波峰在570nm，經由XRD量測可得知為六方晶相結構，經由計算其能隙大約為2.3eV。
第三部分:進行了ZnIn2S4:Eu、ZnIn2S4:Ce等兩種稀土元素的摻雜，可觀察到摻雜濃度的多寡並不會影響晶體結構的改變，隨著摻雜濃度的提升可觀察到發光波長會有紅移的情形，而因為濃度淬減效應的關係，因此摻雜濃度提升其發光強度會跟著變弱。
第四部分:利用旋轉塗佈法將螢光粉/漿料塗佈於單晶矽太陽能電池表面，未旋塗螢光粉/漿料塗單晶矽太陽能其效率為16.15%，而旋塗上ZnIn2S4螢光粉/漿料其效率提升至16.5%，摻雜了Ce以及Eu之ZnIn2S4螢光粉/漿料其效率更有效的提升至17.14%以及17.18%。

關鍵字

微波水熱法 ； ZnIn2S4螢光粉 ； 太陽能電池 ； In2S3螢光粉

並列摘要

Wave heating technology is a kind of high-efficiency heating method, and has a heated rapidly, reaching high and uniform heating, etc., has recently been widely used.
In this study, microwave hydrothermal method successfully synthesized In2S3, ZnIn2S4,ZnIn2S4: Eu, ZnIn2S4: Ce four different light colors such as chalcogenide phosphor. And using X-ray diffraction, scanning electron microscopy, fluorescence spectroscopy, UV - visible spectrophotometer and high-resolution transmission electron microscopy performed on the above phosphor crystal structure and purity, surface morphology and luminescence analysis and identification. And preferentially used in solar cell conversion efficiency.
The first part,the In2S3 synthesized phosphor, the fixed excitation peak at 244nm can be obtained divergence 396nm, measured by XRD and found to be β phase structure, by calculating the energy gap of about 2.1eV.
The second part,theZnIn2S4 synthesized phosphor, the fixed excitation emission peak at 306nm can be obtained 570nm, measured by XRD and found to be hexagonal crystal structure, by calculating the energy gap of about 2.3eV.
The third part,ConductedZnIn2S4: Eu, ZnIn2S4: Ce and other two kinds of rare earth doping, the dopant concentration can be observed and will not affect the amount of change in the crystal structure, as the doping concentration is observed to enhance the emission wavelength will be red shifting circumstances, and because the relationship between the concentration quenching effect reduction, thus enhancing its luminous intensity doping concentration will follow becoming weaker.
The fourth part,Using the spin coating method fluorescent powder / slurry coating on the surface of single-crystal silicon solar cells, not spin coating fluorescent powder / slurry coating its efficiency monocrystalline silicon solar 16.15%, while the spin-coated with a fluorescent powder ZnIn2S4 / slurry to enhance its efficiency to 16.5%, doped with Ce and Eu phosphors of ZnIn2S4 / paste more effective to enhance its efficiency to 17.14% and 17.18%.

並列關鍵字

Microwave hydrothermal method ； ZnIn2S4 fluorescentpowder ； Solar cell ； In2S3 fluorescent powder

參考文獻

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