Zhang L Y, Zou S J, Sun X H
School of Chemical Engineering, Northeast Electric Power University Jilin 132012 P. R. China
RSC Adv. 2018 Feb 7;8(12):6212-6217. doi: 10.1039/c7ra12229b. eCollection 2018 Feb 6.
Two azobenzene dyes, [Cu(azobenzene-4,4'-dicarboxylate) diethylenediamine] (ADD), [Cd(4,4'-diazenediyldibenzoato)(HO)] (DDB), have been designed, synthesized, and characterized as efficient co-sensitizers for dye-sensitized solar cells (DSSC). The optical, charge-transfer, electrochemical and photovoltaic properties of ADD and DDB are investigated by UV-visible spectroscopy, transient surface photovoltage measurement, cyclic voltammetry, and photocurrent-photovoltage measurement. The combination of ADD and DDB in DSSC leads to a wide spectral absorption over the whole visible range (350-700 nm). DSSC with ADD and DDB exhibits a short-circuit photocurrent density as high as 16.96 mA cm, open-circuit photovoltage of 0.73 V, a fill factor of 0.57, and overall light conversion efficiency of 7.1% under standard global AM1.5 solar irradiation conditions.
两种偶氮苯染料，[Cu(偶氮苯-4,4'-二羧酸酯)二乙二胺]（ADD），[Cd(4,4'-二氮杂二苯并酸酯)(HO)]（DDB），已被设计、合成并表征为染料敏化太阳能电池（DSSC）的高效共敏化剂。通过紫外可见光谱、瞬态表面光电压测量、循环伏安法和光电流-光电压测量研究了ADD和DDB的光学、电荷转移、电化学和光伏性质。ADD和DDB在DSSC中的组合导致在整个可见光范围（350-700nm）内具有宽光谱吸收。在标准全球AM1.5太阳辐照条件下，含有ADD和DDB的DSSC表现出高达16.96 mA cm的短路光电流密度、0.73 V的开路光电压、0.57的填充因子和7.1%的总光转换效率。
