摘要
对于柔性DSSC的透明光阳极而言,在低温下制备出结晶性高、颗粒间结合性能良好的TiO_2薄膜是其获得优异光电性能的关键。本文通过对比三种不同浆料添加剂(盐酸、乙二醇乙醚、小颗粒凝胶)对DSSC光电性能的影响,发现小颗粒凝胶的加入可以显著提高器件的光电性能。在此基础上,优化了小颗粒凝胶添加量及退火工艺,得出了最佳制备工艺条件,最终获得短路电流密度为8.14mA/cm^2、填充因子为67.9%、光电转化效率为4.1%的DSSC。进一步研究表明,小颗粒凝胶的加入一方面可以增强TiO_2颗粒之间的连接,从而提高TiO_2的成膜质量;另一方面可以增加TiO_2薄膜对光的散射,从而提高电池的吸光率。
For transparent photoanode of flexible DSSC,preparing well-interconnected TiO2 films with high crystallinity at low temperature is the key to obtaining excellent photoelectric properties.After comparing three annexing agents(hydrochloric acid,2-ethoxyethanol,nanoglue gel),we discovered that DSSC with nanoglue gel achieved the best performance of photoelectric properties.On this basis,we varied amounts of the nanoglue gel in the TiO2 paste and changed the annealing temperature in order to achieve the optimum parameter.Finally,we determined ultimate parameters of the DSSC and achieved 8.14mA/cm2 short current,67.9%fill factor and 4.1% power conversion efficiency.Adding nanogluegel,on one hand,could improve the film-forming characteristic of TiO2 paste by enhancing interconnection between TiO2 particles,on the other hand,it could enhance light scattering of TiO2 film in order to improve the absorbance of DSSC.
作者
韩林轩
张传香
曹方旭
阚彩侠
陶海军
HAN Linxuan;ZHANG Chuanxiang;CAO Fangxu;KAN Caixia;TAO Haijun(College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211100;College of Materials Engineering, Nanjing Institute of Technology, Nanjing 211167;College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100;Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2018年第A02期1-4,共4页
Materials Reports
基金
国家自然科学基金青年基金项目(51202112
51402150)
中央高校基本科研业务费专项资金(NS2017039)
