以聚乙二醇增強有機無機鈣鈦礦量子點發光二極體效率

Abstract

鈣鈦礦量子點的優點包括低成本、易於製造和高發光效率。在本論文中，我們使用乳膠合成技術，此技術在室溫下合成CH3NH3PbBr3量子點是簡單方便的。並將聚乙二醇摻雜在鈣鈦礦量子點發光層中，利用聚乙二醇使注入電子降低。摻雜聚乙二醇的元件在（QDs：PEG = 1：2.5，2.5 mg / mL）這個比例中有最高的亮度和電流效率。亮度提高了160倍，電流效率從0.000257提高到1.06 cd / A。

The advantages of perovskite quantum dots (QDs) include low cost, easy fabrication and high luminescent efficiencies. In this thesis, we used emulsion synthesis technique, which is convenient and versatile for the production of CH3NH3PbBr3 QDs at room temperature. We blended polyethylene glycol (PEG) in the perovskite light-emitting layer, in with PEG were used to reduce the injection of electrons. After blending PEG, the device (QDs:PEG=1:1, 2.5 mg/mL) exhibited the highest brightness and current efficiency. The brightness was increased by 160 times, and the current efficiency was significantly improved from 0.000257 to 1.06 cd/A.