摘要
采用氧等离子体处理对柔性有机太阳能电池(O SC)基板环烯烃共聚物(COC)进行表面改性,基于接触角测量,利用几何平均法计算了COC表面自由能及其极性分量、色散分量以及表面极性度,研究了氧等离子体处理对COC基板表面物理化学性能的影响.结果表明:COC基板表面性能与氧等离子体处理工艺条件密切相关,等离子体改性使得COC表面接触角减小、自由能增大、极性度增加,其表面物理化学性能得到明显优化.这-结果对于O SC柔性电极制备及其器件光伏性能改善具有重要作用.
Surface modification of the cyclic olefin copolymer(COC) substrates for flexible organic solar cells(OSC) was carried out with oxygen-plasma treatment.Based on the measurements of the contact angles by the sessile drop technique,the surface free energy and polarity of the COC substrates were calculated using the geometric mean approach.The effect of oxygen-plasma treatment on the surface physicochemical property of COC substrates was investigated.The experimental results show that the oxygen-plasma treatment decreases contact angle,increases surface free energy and enhances surface polarity,and therefore improves effectively surface physicochemical property of COC substrates.The results indicate that the oxygen-plasma treatment is beneficial to the preparation of flexible electrode and the improvement of photovoltaic performance of flexible OSC.
出处
《中南民族大学学报(自然科学版)》
CAS
2009年第4期38-42,共5页
Journal of South-Central University for Nationalities:Natural Science Edition
基金
湖北省自然科学基金资助项目(2009CDB166)
中南民族大学自然科学基金资助项目(YZZ07004)
关键词
有机太阳能电池
基板
物理化学性能
organic solar cells substrate physicochemical performance