Effect of trap-assisted recombination on open-circuit voltage loss in phthalocyanine/fullerene solar cells
Effect of trap-assisted recombination on open-circuit voltage loss in phthalocyanine/fullerene solar cells
复制标题
陷阱辅助复合对酞菁/富勒烯太阳能电池开路电压损失的影响
DOI：
10.1016/j.orgel.2018.01.016
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发表时间：
2018
影响因子：
3.2
通讯作者：
Izawa Seiichiro
中科院分区：
文献类型：
--
作者：
Shintaku Naoto;Hiramoto Masahiro;Izawa Seiichiro
开路电压(VOC)的巨大能量损失仍然是影响有机太阳能电池(OSCs)光电转换效率的一个问题。我们阐明了酞菁/富勒烯平面异质结(PHJ)OSCs的电荷复合与VOCoss之间的关系。我们通过VOC的温度依赖关系来量化VOC相对于电荷转移态能量的损失。由阻抗测量得到的电荷复合顺序表明存在陷阱辅助复合。我们的结果表明，VOC损耗是由PHJ器件中施主/受主(D/A)界面附近尾态的广泛分布引起的。因此，减少D/A界面附近的陷阱态数可能会导致VOC的增加。
Large energy losses in open-circuit voltage (VOC) are still an issue for the photo-conversion efficiency of organic solar cells (OSCs). We clarify the relationship between charge recombination andVOCloss for phthalocyanine/fullerene planar heterojunction (PHJ) OSCs. We quantify theVOCloss relative to the charge-transfer state energy by the temperature dependence ofVOC. The charge recombination order obtained from impedance measurements indicates the presence of trap-assisted recombination. Our results suggest that theVOClosses are caused by the broad distribution of the tail state near the donor/acceptor (D/A) interface in the PHJ device. Thus, reducing the number of trap states near the D/A interface could lead to an increase inVOC.
共混和双层型锌酞菁/C60 高真空处理有机太阳能电池效率损失的测量
影响因子：
3.7
作者：
A. Sánchez;L. Burtone;M. Riede;E. Palomares
通讯作者：
E. Palomares