鈣鈦礦材料特性及其應用

近年來，有機金屬鹵化物鈣鈦礦材料，在光電領域中備受矚目。其製程不須高溫製程、製程簡單且成本低。本論文使用一種簡單的合成方法，可以在短時間內製備出具有可調波長的鈣鈦礦奈米顆粒，此奈米顆粒的激發光波長介於 540 nm ~ 780 nm 之間。並利用光激發光譜、吸收光譜、X光繞射儀以及穿透式電子顯微鏡，來鑑定我們合成的奈米顆粒，可以證明本實驗所合成出的奈米顆粒符合文獻。然後，我們製備了奈米顆粒與高分子材料混合的發光層，並用來製作發光二極體，由CIE 座標來看，我們最後成功製造出近似白光的發光二極體，在19V時，最高的有效轉換效率為0.00126%，最高電流效率為 0.00205 cd/A。

關鍵字

鈣鈦礦；奈米顆粒

並列摘要

Organic-inorganic halide perovskite materials have arisen considerable attention in recent years because of the low-temperature and low-cost fabrication process. In this work, a facile preparation method was developed to prepare HC(NH2)2PbIxBr1-x perovskite nanoparticles with emission wavelength between 540 nm to 780 nm. X-ray diffraction, transmission electron microscope, photoluminescence spectrum and absorption spectrum were utilized to characterize these nanoparticles. Light-emitting diodes with white light emission were prepared based on an emissive layer consisting of the host polymer and perovskite nanoparticles. The maximum current efficiency is 0.00205 cd/A, and the maximum external quantum efficiency is 0.00126%.

並列關鍵字

Perovskite ； nanoparticles

參考文獻

1. Pope, M., H.P. Kallmann, and P. Magnante, Electroluminescence in Organic Crystals. The Journal of Chemical Physics, 1963. 38(8): p. 2042-2043.

Google Scholar

2. Tang, C.W. and S.A. VanSlyke, Organic electroluminescent diodes. Applied Physics Letters, 1987. 51(12): p. 913-915.

Google Scholar

3. Tang, C.W., S.A. VanSlyke, and C.H. Chen, Electroluminescence of doped organic thin films. Journal of Applied Physics, 1989. 65(9): p. 3610-3616.

Google Scholar

4. Burroughes, J.H., et al., Light-emitting diodes based on conjugated polymers. Nature, 1990. 347: p. 539.

Google Scholar

5. Zhang, F., et al., Brightly Luminescent and Color-Tunable Colloidal CH3NH3PbX3 (X = Br, I, Cl) Quantum Dots: Potential Alternatives for Display Technology. ACS Nano, 2015. 9(4): p. 4533-4542.

Google Scholar

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鈣鈦礦材料特性及其應用

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