超聲噴霧法制備太陽(yáng)電池減反射膜的研究
發(fā)布時(shí)間:2018-04-28 12:43
本文選題:減反射膜 + 超聲噴霧熱解; 參考:《河北工業(yè)大學(xué)》2011年碩士論文
【摘要】:提高太陽(yáng)電池的光電轉(zhuǎn)化效率是光伏研究中最重要的問(wèn)題,然而,,有10%以上的光能在太陽(yáng)能電池的封裝玻璃表面由于反射而損失掉。在玻璃表面制備減反射膜可以起到增透作用,針對(duì)不同種類(lèi)太陽(yáng)電池的不同響應(yīng)波段制備減反射膜可以使電池的轉(zhuǎn)換效率得到有效的提高。 本文探索性地采用成本低、設(shè)備簡(jiǎn)單、生產(chǎn)周期短的超聲噴霧熱解法和優(yōu)化的超聲霧化模式制備出適用于不同太陽(yáng)電池的SiO_2/TiO_2減反射薄膜。 研究了噴射距離、載氣流量、前驅(qū)液的選擇和流量、襯底溫度、熱處理時(shí)間等工藝條件對(duì)薄膜結(jié)構(gòu)和光學(xué)性能的影響,找到最優(yōu)化的工藝條件并確定薄膜材料的光學(xué)參數(shù)。發(fā)現(xiàn)500℃時(shí)制備出的TiO_2薄膜呈銳鈦礦,SiO_2薄膜呈非晶結(jié)構(gòu),保溫?zé)崽幚?0min后的折射率分別為2.23和1.42。 根據(jù)所得單層薄膜的光學(xué)參數(shù)結(jié)果,結(jié)合光學(xué)薄膜理論,利用軟件優(yōu)化設(shè)計(jì)出適用于非晶硅太陽(yáng)電池的雙層減反射膜系和適用于微晶、非/微疊層及晶硅太陽(yáng)電池的六層減反射膜系,理論平均剩余反射率為1.193%和0.879%。 根據(jù)膜系的優(yōu)化結(jié)果,采用載玻片為襯底,制備出兩種應(yīng)用于太陽(yáng)能電池的減反射膜,使玻璃的透過(guò)率分別提高了10.8%和10.4%。通過(guò)附著性測(cè)試和機(jī)械性能測(cè)試表明減反射膜具有較強(qiáng)的物理性能。
[Abstract]:Improving the photovoltaic conversion efficiency of solar cells is the most important problem in photovoltaic research. However, more than 10% of the light energy is lost in the solar cell packaging glass surface due to reflection. Antireflection film on glass surface can play an antireflection effect, and the conversion efficiency of solar cell can be improved effectively by preparing antireflection film in different response bands of different kinds of solar cells. In this paper, SiO_2/TiO_2 antireflective thin films suitable for different solar cells are prepared by ultrasonic spray pyrolysis with low cost, simple equipment and short production cycle and optimized ultrasonic atomization mode. The effects of injection distance, carrier gas flow rate, the selection and flow rate of precursor liquid, substrate temperature and heat treatment time on the structure and optical properties of the film were studied. The optimum process conditions were found and the optical parameters of the film materials were determined. It was found that the TiO_2 thin films prepared at 500 鈩
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