發(fā)布時間：2018-06-06 20:31

  本文選題：薄膜太陽能電池 + CIS系粉體��； 參考：《中南大學》2011年碩士論文

【摘要】：CIS系太陽電池是最有潛力的薄膜太陽能電池之一,但復雜、難控的CIS系吸收層薄膜的制備技術(shù)是其實現(xiàn)大規(guī)模產(chǎn)業(yè)化的瓶頸。CIS系粉體材料的研發(fā)可為吸收層薄膜的制備提供多種簡潔的思路,有望大幅度改進薄膜制備工藝、降低生產(chǎn)成本。本論文針對CIS系粉體材料的制備研究中存在的問題,對低成本、高質(zhì)量CIS系粉體的可量產(chǎn)化制備技術(shù)進行了探索研究,以金屬氯化物和Se/S為原料,在適宜的有機溶劑中通過回流反應法制備了CIS系粉體。開展的主要工作及研究結(jié)果簡述如下： (1)以乙二胺為溶劑,通過回流反應結(jié)合快速熱處理的方法制備了CuInSe_2粉體；研究了各工藝參數(shù)對產(chǎn)物的影響,并分析了反應機理。結(jié)果表明,回流反應產(chǎn)物為Cu和In的二元硒化物,通過熱處理可生成單相黃銅礦型CuInSe_2,產(chǎn)物元素配比接近理想比例；提高熱處理溫度和增加熱處理時間(30 min內(nèi))有利于CuInSe_2相的完全形成和結(jié)晶質(zhì)量的改善,但熱處理時間的延長對產(chǎn)物微觀形貌有不良影響；600℃/30 min是較佳的熱處理條件。 (2)以三乙烯四胺為溶劑,通過回流反應直接制備了CIS粉體,研究了反應溫度和時間等參數(shù)對產(chǎn)物各種性質(zhì)的影響,探討了合成機理。結(jié)果表明：以三乙烯四胺為溶劑可有效制備單相CuInSe_2粉體,并且反應時間大大縮短,產(chǎn)物的元素配比良好,形貌規(guī)則。反應溫度的提高有利于反應的加快和良好的結(jié)晶,200℃/1～2 h是較佳的反應條件。而同樣工藝條件用于CuInS_2粉體制備時,則出現(xiàn)少量二元雜相,采用三乙烯四胺+乙二醇混合溶劑可得到單相CuInS_2,相比CuInSe_2粉體,其成相更為容易,粒子更為細小均勻。 (3)采用三乙烯四胺+乙二醇混合溶劑通過回流反應制備了CuIn(S_xSe_(1-x))_2粉體,研究了S的摻入效果和S含量對產(chǎn)物各種性質(zhì)的影響,并考察了不同S含量下CuIn(S_xSe_(1-x))_2的光學和電學性能。結(jié)果表明：制得的CuIn(S_xSe_(1-x))_2粉體為單相黃銅礦型結(jié)構(gòu),各元素比例與既定配比十分接近；產(chǎn)物微觀形貌良好,粒子接近球形且尺寸較小分布均勻；S的摻入對CIS材料的帶隙寬度有明顯的提升作用；隨S含量的增長,CuIn(S_xSe_(1-x))_2的載流子濃度逐漸減小,遷移率和電阻率逐漸增大,在S/(S+Se)為0～0.6的范圍內(nèi),CuIn(S_xSe_(1-x))_2為p型半導體,各電學特性符合作為太陽電池吸收層的要求。
[Abstract]:The CIS solar cell is one of the most potential thin film solar cells. However, the preparation technology of the complex and difficult CIS absorption film is the bottleneck of the large-scale industrialization. The research and development of the bottleneck.CIS powder material can provide a variety of concise ideas for the preparation of the absorbing layer film. It is expected that the preparation technology of the film can be greatly improved and the production is reduced. In this paper, in order to solve the problems in the preparation of CIS system powder materials, a research on the preparation technology of low cost and high quality CIS powder is explored. The CIS system powder is prepared by reflux reaction method with metal chloride and Se/S as raw material. The main work and research results are simply carried out. The following are as follows:
(1) CuInSe_2 powder was prepared by reflux reaction combined with rapid heat treatment with ethylenediamine as solvent. The effect of various process parameters on the product was studied and the reaction mechanism was analyzed. The results showed that the reflux product was two element selenide of In and Cu and In, and the single phase chalcopyrite type CuInSe_2 could be generated by heat treatment. Near ideal proportion, increasing the heat treatment temperature and increasing the heat treatment time (30 min) is beneficial to the complete formation of CuInSe_2 phase and the improvement of the crystalline quality, but the prolongation of the heat treatment time has a bad effect on the micromorphology of the products, and the /30 min is a better heat treatment condition.
(2) CIS powders were prepared by reflux reaction with three ethylene four amine as solvent. The effects of reaction temperature and time on the properties of the products were studied. The synthesis mechanism was discussed. The results showed that the single phase CuInSe_2 powder was prepared with three ethylene four amine as the solvent, and the reaction time was greatly shortened and the ratio of the product was good. Good morphology rules. The increase of reaction temperature is beneficial to the quicker and better crystallization of the reaction. The better reaction condition is /1 ~ 2 h at 200 c. While the same process conditions are used in the preparation of CuInS_2 powder, a small amount of two element heterozygosity is found, and a single phase CuInS_2 can be obtained by using three ethylene four amine + glycol mixed solvent. Compared to the CuInSe_2 powder, the phase is more in phase. To be easy, the particles are even smaller and even.
(3) CuIn (S_xSe_ (1-x)) _2 powder was prepared by reflux reaction of three ethylene four amine + ethylene glycol. The effects of S incorporation and S content on the properties of the products were studied. The optical and electrical properties of CuIn (S_xSe_ (1-x)) _2 under different S contents were investigated. The results showed that the prepared powder was Dan Xianghuang. The proportion of each element is very close to the established proportion of the copper ore structure, the product micromorphology is good, the particle is close to the sphere and the size distribution is uniform. The doping of S has an obvious lifting effect on the band gap width of the CIS material. With the increase of S content, the carrier concentration of CuIn (S_xSe_ (1-x)) _2 gradually decreases, and the mobility and resistivity increase gradually. In the range of S/ (S+Se) from 0 to 0.6, CuIn (S_xSe_ (1-x)) _2 is p type semiconductor, and the electrical characteristics meet the requirements of solar cell absorbing layer.
【學位授予單位】：中南大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TB383.3

【引證文獻】

相關(guān)碩士學位論文 前1條

1 李紹文;銅銦硫系納米粉體的液相回流法制備及其光伏特性研究[D];中南大學;2012年

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本文編號：1988009