设计合成了新型聚合物给体材料PTT-FTQ,以PTT-FTQ∶ PCBM体系作为活性层,研究了给受体比例及膜厚、受体类型、添加剂等因素对有机太阳能电池性能的影响.结果表明,当给受体比例为1∶2时,PTT-FTQ能与受体PC61 BM形成良好的网络结构,活性层薄膜表面变得更加光滑平整,在活性层膜厚为120 nm时,有利于吸收光子,传输激子,器件能量转化效率达到2.12％,采用1,8-二碘辛烷(DIO)做添加剂,在添加量为溶剂的1％时,效率提升到2.18％,随着DIO加入量的增加,反而会减少给受体间的界面接触面积,导致激子的解离效率和载流子的传输效率大幅度降低.而采用PC71 BM做受体时,电池的短路电流密度比PC61 BM体系下的要大得多,但是开路电压会稍低,这主要是PC71 BM有较强的光谱吸收但LU-MO能级较低,PTT-FTQ∶ PC71 BM体系能量转化效率达到2.78％.
参考文献
| [1] | Gelinck G H,Huitema H E A,Van Veenendaal E,et al .Flexible Active-Matrix Displays and Shift Registers Based on Solution-Processed Organic Transistors[J].Nature materials.2004,2004,3(2):106-110.,2004. |
| [2] | Rogers J A,Bao Z,Baldwin K,et al .Paper-like Electronic Displays:Large-Area Rubber-Stamped Plastic Sheets of Electronics and Microencapsulated Electrophoretic Inks[J].Proceedings of the National Academy of Sciences.2001,2001,98(9):4 835-4 840.,2001. |
| [3] | Someya T,Kato Y,Sekitani T,et al .Conformable,Flexible,Large-Area Networks of Pressure and Thermal Sensors with Organic Transistor Active Matrixes[J].Proceedings of the National Academy of Sciences of the United States of America.2005,2005,102(35):12 321-12 325.,2005. |
| [4] | Padinger F,Rittberger R S,Sariciftci N S .Effects of Postproduction Treatment on Plastic Solar Cells[J].Advanced Functional Materials.2003,2003,13(1):85-88.,2003. |
| [5] | Krebs F C .Fabrication and Processing of Polymer Solar Cells:A Review of Printing and Coating Techniques[J].Solar Energy Materials and Solar Cells.2009,2009,93(4):394-412.,2009. |
| [6] | He Z,Zhong C,Su S,et al .Enhanced Power-Conversion Efficiency in Polymer Solar Cells Using an Inverted Device Structure[J].Nature Photonics.2012,2012,6(9):591-595.,2012. |
| [7] | You J,Dou L,Yoshimura K,et al.A Polymer Tandem Solar Cell with 10.6% Power Conversion Efficiency[J].Nat Commun,2013,(4):1446.,2013. |
| [8] | Kim J Y,Lee K,Coates N E,et al .Efficient Tandem Polymer Solar Cells Fabricated by All-Solution Processing[J].Science,2007,317(5835):222-225.,2007. |
| [9] | Sun X,Zhao D,Ke L,et al .Inverted Tandem Organic Solar Cells with a MoO3/Ag/Al/Ca Intermediate Layer[J].Applied Physics Leuers.2010,2010,97(5):053 303.,2010. |
| [10] | Dou L,You J,Yang J,et al .Tandem Polymer Solar Cells Featuring a Spectrally Matched Low-Bandgap Polymer[J].Nature Photonics,2012,6(3):180-185.,2012. |
| [11] | Zhao D W,Ke L,Li Y,et al .Optimization of Inverted Tandem Organic Solar Cells[J].Solar Energy Materials and Solar Cells,2011,95(3):921-926.,2011. |
| [12] | You J,Dou L,Yoshimura K,et al .A Polymer Tandem Solar Cell with 10.6% Power Conversion Efficiency[J].Nature Communcations,2013,4 |
| [13] | Sun Y,Welch G C,Leong W L,et al .Solution-Processed SmallMolecule Solar Cells with 6.7% Efficiency[J].Nature Materials,2012,11(1):44-48.,2012. |
| [14] | Guo X,Cui C,Zhang M,et al .High Efficiency Polymer Solar Cells Based on Poly (3-Hexylthiophene)/Indene-C70 Bisadduct with Solvent Additive[J].Energy & Environmental Science.2012,2012,5(7):7 943-7 949.,2012. |
| [15] | Lee J K,Ma W L,Brabec C J,et al .Processing Additives for Improved Efficiency from Bulk Heterojunction Solar Cells[J].Journal of the American Chemical Society.2008,2008,130(11):3 619-3 623.,2008. |
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