本文選題：鋁摻雜氧化鋅 + 表面改性��； 參考：《北京化工大學》2015年碩士論文

【摘要】：在太陽能電池和平板顯示行業(yè)高速發(fā)展的今天,透明導電氧化物(TCO)的作用越來越重要。絕大部分實際生產(chǎn)中應用的TCO為銦摻雜氧化錫(ITO),然而ITO具有毒性,且等離子環(huán)境下穩(wěn)定性差；氧化鋅具有良好的光學性質(zhì),通過摻雜Al元素后得到的鋁摻雜氧化鋅(AZO)在導電性方面得到很大提升,同時其原料廉價、無毒性以及在等離子環(huán)境下穩(wěn)定。論文分別采用溶解熱和共沉淀法制備了AZO納米顆粒水相及有機相透明分散體,并利用分散體涂覆制備了透明導電薄膜,研究了制備工藝條件對AZO分散體和薄膜性能的影響。主要結(jié)論如下：1.采用溶劑熱法制備了AZO納米顆粒,考察了制備工藝條件對AZO微觀結(jié)構(gòu)及電阻率的影響,得到適宜的制備條件為：摻雜比為3%,沉淀劑選用氫氧化鈉,反應所用溶劑為乙二醇甲醚,溶劑熱溫度為220℃；制備出的AZO顆粒約35 nm,電阻率為3.28×103Ω·cm；將粉體在氫氮混合氣氣氛中于550℃煅燒2小時后,電阻率降至20 Ω·cm。2.采用溶劑熱法制備了AZO水相透明分散體,考察了制備工藝條件對AZO微觀結(jié)構(gòu)、分散性和電阻率等影響,得到適宜的制備條件為：摻雜比3%,溶劑選用甲醇,反應溫度為70℃,改性溫度為80℃,溶劑熱溫度為150℃,改性pH值為9,改性劑加入量為19 wt%,改性時間為3 h；制備的AZO顆粒為6-10 nm,固含量為10 wt%的水相分散體在550 nm處透過率為78.7%。3.采用共沉淀法制備了AZO有機相透明分散體,考察了制備工藝條件對AZO微觀結(jié)構(gòu)及分散性等影響,得到適宜的制備條件為：改性劑用量為15wt%,改性時pH值為7.5；制備的AZO顆粒為6-10 nm,固含量為10 wt%的乙二醇甲醚相分散體在550 nm處透過率為87.2%。4.利用AZO水相和有機相分散體,通過旋涂法制備了AZO透明導電薄膜,初步研究了基底處理方式、薄膜處理方式、分散介質(zhì)對AZO薄膜平整度及方塊電阻的影響。利用乙二醇甲醚相分散體旋涂制備的AZO薄膜于紫外環(huán)境下照射后,在550 nm處透過率為93.4%,方塊電阻為2×106Ω/□。
[Abstract]:With the rapid development of solar cell and flat panel display industry, the role of transparent conductive oxide (TCO) is becoming more and more important. Most of the TCO used in practical production is indium doped tin oxide (ITO), but ITO is toxic and has poor stability in plasma environment, and zinc oxide has good optical properties. Aluminum-doped zinc oxide (AZO) obtained by doping Al elements has been greatly improved in electrical conductivity, and its raw materials are cheap, non-toxic and stable in plasma environment. In this paper, aqueous and organic transparent dispersion of AZO nanoparticles were prepared by solution heat and coprecipitation methods, and transparent conductive films were prepared by dispersion coating. The effects of preparation conditions on the properties of AZO dispersions and films were studied. The main conclusions are as follows: 1. AZO nanoparticles were prepared by solvothermal method. The effects of preparation conditions on the microstructure and resistivity of AZO were investigated. The optimum preparation conditions were as follows: doping ratio was 3 / 3, sodium hydroxide was used as precipitant, and the solvent for the reaction was ethylene glycol methyl ether. The solvothermal temperature is 220 鈩，

本文編號：2019074