量子點(diǎn)又稱為半導(dǎo)體發(fā)光納米晶,是一種粒徑介于1—10nm之間的納米顆粒,受激后可以發(fā)射熒光。由于不同尺寸的量子點(diǎn),其電子和空穴被量子限域的程度不一樣,因此可在受到外來能量(光、電)的激發(fā)后發(fā)出不同顏色的光,覆蓋從藍(lán)光到紅外光的整個(gè)區(qū)域。
近年來,盡管大眾對“量子點(diǎn)”概念還有些陌生,但它在顯示領(lǐng)域的應(yīng)用已然興起,量子點(diǎn)材料應(yīng)用開始呈現(xiàn)快速增長的趨勢。量子點(diǎn)的發(fā)展從最初的照明到如今的光致發(fā)光高色域顯示背光源,已經(jīng)進(jìn)入商業(yè)化應(yīng)用階段。許多品牌商陸續(xù)推出了量子點(diǎn)液晶電視,并逐步向顯示器、平板、筆記本和手機(jī)等中小尺寸延伸。膠體量子點(diǎn)具有非常獨(dú)特的光電特性,從合成到應(yīng)用的發(fā)展已經(jīng)愈趨成熟,無論是光致發(fā)光還是電致發(fā)光,量子點(diǎn)的未來都不容小覷。
在量子點(diǎn)光致應(yīng)用上,納晶科技是中國第一家實(shí)現(xiàn)量子點(diǎn)管和量子點(diǎn)膜產(chǎn)業(yè)化的公司,致力于量子點(diǎn)新材料的研究、制造及應(yīng)用技術(shù)與產(chǎn)品的開發(fā)。此次納晶科技就運(yùn)用上海凈信Tissuelyser-24研磨儀來研磨量子點(diǎn)半導(dǎo)體新材料,得以研究研磨后的膠溶性。
全自動(dòng)組織研磨儀
Tissuelyser?系列研磨儀采用了特殊的垂直上下一體震動(dòng)模式,通過研磨珠(氧化鋯、鋼珠、玻璃珠、陶瓷珠)的高頻往復(fù)振動(dòng)、撞擊、剪切,快速的實(shí)現(xiàn)目的。使研磨的樣品具有更加充分、更均勻、樣品重復(fù)性更好、樣品之間沒有交叉污染。操作數(shù)量多,效果好,1分鐘內(nèi)完成2×24、2×48、4×96個(gè)樣品的研磨。省時(shí)省力,批間,批內(nèi)差異小。儀器運(yùn)行過程中,噪音小于55dB,不會(huì)對其它實(shí)驗(yàn)或儀器產(chǎn)生干擾。當(dāng)需要低溫研磨環(huán)境,可將放有樣本的適配器浸入液氮中冷卻1-2分鐘,取出后移至主機(jī)快速固定即可開始研磨,不需要進(jìn)行再次冷凍處理,節(jié)省液氮。
實(shí)驗(yàn)?zāi)康模?/strong>
量子點(diǎn)半導(dǎo)體新材料研磨后的膠溶性
實(shí)驗(yàn)地點(diǎn):納晶科技股份有限公司
實(shí)驗(yàn)材料和器具:
樣品:量子點(diǎn)半導(dǎo)體新材料
儀器:全自動(dòng)快速研磨儀(上海凈信Tissuelyser-24)
配件:鋼罐一套
實(shí)驗(yàn)步驟:
1、將量子點(diǎn)半導(dǎo)體新材料卷曲剪成小塊放入液氮中冷凍;
2、將預(yù)處理過冷凍的樣品加入到鋼罐內(nèi),再放到液氮內(nèi)冷凍幾分鐘;
3、將適配器裝入凈信研磨儀中;
4、設(shè)定運(yùn)行參數(shù);
5、啟動(dòng)儀器至研磨程序結(jié)束;
實(shí)驗(yàn)結(jié)果:
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