在单晶硅太阳电池的制备中,碱性腐蚀常被用于在晶体硅上形成金字塔结构,减小光的反射,提高太阳电池的效率.获得小而分布均匀的金字塔绒面结构有利于提高太阳电池的转化效率.本文通过优化NaClO织构工艺,获得了金字塔平均尺寸为1.4 μm,平均表面反射率为11.5％的织构绒面,并探索了形成小金字塔的机理.认为NaClO具有一定的氧化性是其形成小金字塔的可能原因.为了研究氧化性在织构中的作用,采用在无氧化性的NaOH溶液中分别通入了氧气和氩气.实验结果表明,在常规的NaOH织构过程中加入氧化剂有助于减小金字塔的尺寸.由于NaClO溶液自身既具有碱性,又具有氧化性,织构时不需要额外地加入氧化剂.与常规织构所用的NaOH溶液相比,NaClO溶液更易得到小而分布均匀的金字塔绒面,更适用于太阳电池的制备.
参考文献
| [1] | Verlinden P;Evrard O;Mazy E et al.The Surface Texturization of Solar Cells:a New Method Using V-grooves with Controllable Sidewall Angles[J].Solar Energy Materials & Solar Cells,1992,26:71-78. |
| [2] | Chitre S R.[A].Washington,DC,1978:152-154. |
| [3] | King D L;Buck M E.[A].Las Vegas,Nevada,1991:303. |
| [4] | Nishimoto Y.;Namba K. .Investigation of texturization for crystalline silicon solar cells with sodium carbonate solutions[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2000(4):393-402. |
| [5] | Chaoui R;Lachab M;Chiheub F.[A].Spain:Barcelona,1997:812. |
| [6] | Xi ZQ.;Yang DR.;Que DL. .Texturization of monocrystalline silicon with tribasic sodium phosphate[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2003(3):255-263. |
| [7] | Jae S Y;Kim D;Joo Y H et al.Experiments on Anisotropic Eching of Si in TMAH[J].Solar Energy Materials & Solar Cells,2001,66:37-44. |
| [8] | Sun L F;Tang J Y .A New Texturing Technique of Monocrystalline Silicon Surface with Sodium Hypochlorite[J].Applied Surface Science,2009,255:9301-9304. |
| [9] | Kim JM;Kim YK .The enhancement of homogeneity in the textured structure of silicon crystal by using ultrasonic wave in the caustic etching process[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2004(2):239-247. |
| [10] | P.K. Basu;H. Dhasmana;N. Udayakumar;Firoz Khan;D.K. Thakur .Regulated low cost pre-treatment step for surface texturization of large area industrial single crystalline silicon solar cell[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2010(6):1049-1054. |
| [11] | 席珍强,杨德仁,吴丹,张辉,陈君,李先杭,黄笑容,蒋敏,阙端麟.单晶硅太阳电池的表面织构化[J].太阳能学报,2002(03):285-289. |
| [12] | Bressers PMMC.;Gardeniers JGE.;Elwenspoek M.;Kelly JJ. .SURFACE MORPHOLOGY OF P-TYPE (100)SILICON ETCHED IN AQUEOUS ALKALINE SOLUTION[J].Journal of the Electrochemical Society,1996(5):1744-1750. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%