摘要
有转换平面异质接面结构的器官的太阳能电池作为阴极缓冲区层(CBL ) 用几种材料基于 subphthalocyanine 和 C60 被制作，包括 tris-8-hydroxy-quinolinato 铝(Alq3 ) ， bathophenanthroline (Bphen ) ， bathocuproine， 2,3,8,9,14,15-hexakis-dodecyl-sulfanyl-5,6,11,12,17,18-hexaazatrinaphthylene (HATNA ) ，和 Cs2CO3 的无机的混合物。最低没有住的分子的轨道的水平和太阳能电池表演上的器官的 CBL 的电子活动性的影响被比较。结果证明 Alq3， Bphen，和 HATNA 能显著地改进设备表演。最高的效率作为 CBL 与退火的 HATNA 从设备被获得并且没有 CBL，与设备相比在超过 7 次增加了。而且，有空间费用有限电流理论的模拟结果显示在在转换振荡结构的 organic/electrode 接口的 Schottky 障碍被插入 HATNA CBL 为 27% 减少。
Organic solar cells with inverted planar heterojunction structure based on subphthalocya- nine and C60 were fabricated using several kinds of materials as cathode buffer layer （CBL）, including tris-8-hydroxy-quinolinato aluminum （Alq3）, bathophenanthroline （Bphen）, bathocuproine, 2,3,8,9,14,15-hexakis-dodecyl-sulfanyl-5,6,11,12,17,18-hexaazatrinaphthylene （HATNA）, and an inorganic compound of Cs2CO3. The influence of the lowest unoccupied molecular orbital level and the electron mobility of organic CBL on the solar cells perfor- mance was compared. The results showed that Alq3, Bphen, and HATNA could significantly improve the device performance. The highest efficiency was obtained from device with an- nealed HATNA as CBL and increased for more than 7 times compared with device without CBL. Furthermore~ the simulation results with space charge-limited current theory indicated that the Schottky barrier at the organic/electrode interface in inverted OSC structure was reduced for 27% by inserting HATNA CBL.
