摘要
太阳电池单晶Si片表面制绒已是一项成熟的工艺,但普遍制绒时间较长。为提高制绒效率,本课题研究了较短时间内NaOH/异丙醇(IPA)体系制绒时的温度、时间、溶液组分对绒面的影响,以及制绒前去损伤的优劣。最终实现了,在含2.5%NaOH(质量百分比,下同)和10%IPA的溶液中,80℃恒温处理15 min即可制备出比较均匀的绒面。溶液中加入3%Na2SiO3,效果更佳,反射率最低可达9.5%。并发现去损伤后制绒效果并不理想,同时还研究了表面活性剂1,4-环己二醇(CHX)和十二烷基苯磺酸钠(SDBS)代替异丙醇制绒。研究发现,异丙醇仍然是性价比较好的添加剂。
Surface texturization of monocrystalline silicon for solar cells has been a mature technique,but it costs too long time.In order to improve productive efficiency,the effect of temperature,duration of time,composition and removment of the surface damages on surface texturization in the NaOH/IPA solution with shorter time was studied.Well-proportioned texturisation were obtained in 2.5%NaOH and 10%IPA aqueous solution at 80 ℃ for 15 min.The texturization is better when adding 3%Na2SiO3 in the solution,and the lowest reflectivity could be 9.5%.But it is hard to obtain perfect texturization after removing surface damages.The work using other additives（1,4-Cyclohexanediol,CHX and Sodium dodecylbenzene sulfonate,SDBS） instead of IPA were studied,and IPA are still considered to be the most suitable additive.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2011年第2期352-358,共7页
Journal of Synthetic Crystals
基金
教育部留学回国人员科研启动基金教外司留([2008]890)
关键词
各向异性腐蚀
太阳电池
制绒
单晶Si
anisotropic etching
solar cells
texturing
monocrystalline silicon
