2</sub>MnBr<sub>4</sub>(1-mPQ=1. 甲基哌嗪， 1-C<sub>5</sub>H<sub>12</sub>N<sub>2</sub>) ，并展示其封裝LED的良好光輸出穩(wěn)定性。此外，針對(duì)發(fā)光弱的問(wèn)題提出了優(yōu)化的蒸發(fā)合成法和金屬離子摻雜方法，其中摻雜 10% Li的樣品表現(xiàn)出最高的發(fā)光強(qiáng)度，與傳統(tǒng)蒸發(fā)法相比提升了 28% 。研究發(fā)現(xiàn)，改進(jìn)蒸發(fā)法提高了材料對(duì)藍(lán)光的吸收;離子替代法改變了晶格結(jié)構(gòu)，提升了發(fā)光強(qiáng)度。由 1-mPQBr)<sub>2</sub>MnBr<sub>4</sub> 封裝的白光LED色域覆蓋范圍達(dá)到 106% NTSC,在 10mA 的驅(qū)動(dòng)電流下，光效 112lm/W 。該發(fā)現(xiàn)為有機(jī)-無(wú)機(jī)雜化錳鹵化物在高色域顯示領(lǐng)域的應(yīng)用打開(kāi)了大門(mén)。-龍?jiān)雌诳W(wǎng)" />

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一種提升LED光輸出穩(wěn)定性的有機(jī)-無(wú)機(jī)錳鹵化物及其亮度優(yōu)化

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關(guān)鍵詞：有機(jī)-無(wú)機(jī)金屬鹵化物；綠色熒光粉；光致發(fā)光；LED應(yīng)用中圖分類號(hào)：0482.31 文獻(xiàn)標(biāo)識(shí)碼：ADOI：10.37188/CJL.20250016 CSTR：32170.14.CJL.20250016

Abstract：Organic-inorganic hybrid manganese halidesare ideal narow-band green light materials，but their encapsulated LED devices rapidly degrade after being lit，making them unsuitable for applications.This paper reports on an organic-inorganic hybrid manganese halide， （1-mPQBr）2MnBr4 ，and demonstrates the good light output stabilityof its encapsulatedLED.Inaddition，toaddressthe isseof weak luminescence，optimized evaporationsynthesis methods and metal ion doping techniques have been proposed. Among these，the sample doped with 10% Li exhibitedthehighest luminescence intensity，whichwasa 28% improvement compared to the traditional evaporation method.This study found that the improved evaporation method enhanced the material'sabsorptionof blue light；the ion substitutionmethod alteredthecrystalstructure，thereby increasing theluminescence intensity.The whitelight LED encapsulated by （?1-mPQBr）2MnBr4 hasa color gamut coverage of 106% NTSC，with aluminous efficacy of 112lm/ W at a drive current of 10mA . This discovery opens the door for the application of organic-inorganic hybrid manganese halides in the field of high-color-gamut displays.

Key Words： organic-inorganic metal halides； green phosphors；photoluminescence;LED applications

1引言

在高色域顯示領(lǐng)域中，符合人眼靈敏度的綠色熒光粉對(duì)LED的色域范圍和發(fā)光效率有著重要影響，因此獲得具有 ～520nm 中心發(fā)射波長(zhǎng)和窄帶發(fā)射特性的綠色熒光粉是實(shí)現(xiàn)高色域顯示的重要條件-3]。（剩余15780字）

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