CuInSe_2薄膜太阳能电池非真空印刷制备技术研究  

Study on the non-vacuum printing technology for the fabrication of CuInSe_2 thin film solar cell

作　　者：周芳芳[1] 陈勤妙[1,2] 朱子诚 倪一[1] 李振庆[1,2] 窦晓鸣[1,2,3] 庄松林 

机构地区：[1]上海理工大学光电信息与计算机工程学院、教育部光学仪器与系统工程研究中心、上海市现代光学系统重点实验室,上海200093 [2]上海交通大学物理系,上海200240 [3]日本早稻田大学先端科学研究机构,东京162-0041

出　　处：《光电子．激光》2012年第10期1925-1931,共7页Journal of Optoelectronics·Laser

基　　金：上海市科委科技基金(10540500700);上海市重点学科第3期(S30502)资助项目

摘　　要：对CuInSe2(CISe)薄膜太阳能电池的吸收层进行了非真空印刷制备技术研究。使用机械化学法合成CISe前驱粉末,采用ethyl-cellulose作为分散试剂配置印刷浆,使用丝网印刷技术沉淀CISe吸收层,对沉淀的吸收层进行N2氛围的快速热退火处理,使用XRD、UV、SEM及J-V等手段对CISe吸收层进行了分析表征。结果表明:简单高效的机械化学法可获得主(112)晶向CISe前驱粉末;经丝网印刷并干燥后的CISe吸收层中含有大量有机分散剂,退火可蒸发有机分散剂并有效改善CISe结晶度,但过长的退火会增加晶体缺陷;实验制得一典型CISe薄膜太阳能电池的短路电流密度、开路电压、填充因子和转换效率分别为4.48mA/cm2、355mV、0.41和0.65%。The non-vacuum printing technology is studied for the fabrication of CulnSee （CISe） thin film solar cell. CISe precursor powder, synthesized by the mechanochemical method,is dispersed by ethyl-cel- lulose to prepare screen-printing paste. The CISe paste is deposited on substrate by the screen-printing technology to form the CISe absorber layer. The printed CISe absorber layers are annealed in N2 ambi- ence by rapid thermal annealing process at various conditions and characterized by XRD, UV, SEM and J-V. It is found that：CISe precursor powder with preferred （112） orientation can be obtained by the mechanochemical method;Screen-printed CISe absorber layer contains lots of organic dispersion agent ethyl-cellulose; High-temperature annealing process can remove most of the ethyl-cellulose and effectively improve the crystallinity of CISe, whereas overlong annealing also introduces defects to the CISe The short-circuit current density, open-circuit voltage, fill factor and conversion efficiency of a typical CISe solar cell are 4.48 mA/cm^2 ,355 mV,0.41 and 0. 65% ,respectively.

关 键 词：CuInSe2(CISe)薄膜太阳能电池 非真空印刷技术 机械化学法 ethyl-cellulose 丝网印刷法 

分 类 号：O649[理学—物理化学]