摘要
采用超声波破碎结合蔗糖密度梯度离心的方法从钝顶螺旋藻中分离出纯度较高的完整藻胆体,探讨了具有超大分子结构的藻胆体作为染料敏化太阳能电池(DSSC)敏化剂的可行性,考察了藻胆体与Chlorin e6在纳米Ti O2电极上的耦合敏化作用。研究发现,藻胆体可以组装在纳米Ti O2电极上作为DSSC的敏化剂,藻胆体DSSC的开路电压0.55 V,短路电流0.50 mA/cm2,光电转化效率0.19%;藻胆体与Chlorin e6耦合敏化可以增大DSSC的短路电流,提高光电转化效率,且高于藻胆体和Chlorin e6单独敏化的加和,表现出明显的耦合效应,为进一步探讨光合膜蛋白在光电材料中的应用奠定了基础。
Intact phycobilisomes were separated from Spirulina platensis by ultrasonic cell disruption and sucrose density-gradient centrifugation in 1.0 mol/L phosphate buffer,in order to explore the feasibility of supermolecular phycobilisomes as the sensitizer of dye-sensitized solar cells（DSSCs）,and the synergetic effect of co-sensitization of phycobilisomes with Chlorin e6.It was found that phycobilisomes could be used as DSSC sensitizer on nano-TiO2 electrode. The phycobilisomes DSSC was characterized with open circuit voltage of 0.55V,short-circuit current of 0.50 mA/cm2,and photoelectric conversion efficiency of 0.19%.Co-sensitization of phycobilisomes coupled with Chlorin e6 could increase the DSSC short-circuit current and photoelectric conversion efficiency,which were higher than the sums of DSSCs sensitized by phycobilisomes or Chlorin e6 separatly,showing apparently a synergetic effect.This paved the way for further exploring the applications of photosynthetic membrane proteins in optoelectronic materials.
出处
《太原理工大学学报》
CAS
北大核心
2010年第5期496-500,共5页
Journal of Taiyuan University of Technology
基金
中央高校基本科研业务费专项资金资助项目(09CX05005A)
