在這篇論文中將會探討，我們合成出兩支小分子材料(BABDT6T,RHBDT6T)具有對稱性、共平面性及共軛性，形成A-D-A的構造，中間的核心是TBDT，兩旁分別接上不同的接受體BA 及RH，分析兩隻材料發現BABDT6T相較於RHBDT6T有紅移的現象，使用溶液製成的方式做成元件，做用在塊狀異質結構的太陽能電池上，利用主動層厚度，熱退火，添加劑等方式優化效率，最後得出BABDT6T最高效率為3.20%，最好條件是主動層厚度180nm、熱退火75度10分鐘、加入0.75% v/v DIO、與PC70BM比例為1:0.5。

In this study we have strategically designed and convergently synthesized two novel, symmetrical, and linear A–D–A-type π-conjugated donor molecules (BABDT6T, RHBDT6T), each containing a planar electron-rich 2-octylthiene-2-yl–substituted benzodithiophene (TBDT) unit as the core, each containing TBDT as the central electron donor unit flanked by three octylthiophene units and end capped with RH or barbutaric acid (BA) acceptors. The nature of the acceptor end groups affects the intermolecular interactions of RHBDT6T and BABDT6T and, thereby, their bulk properties, including their optical, electrochemical, and photovoltaic properties. Among our tested systems, the best BHJ solar cell device incorporating a blend of BATBDT and PC70BM at a ratio of 1:0.5 delivered the highest PCE (3.20%) after addition of 0.75% of 1,8-diiodooctane.

1. http://wattsupwiththat.com/
2. http://www.nrel.gov
3. Alfred Smee .Elements of electro-biology,: or the voltaic mechanism of man; of electro-pathology, especially of the nervous system; and of electro-therapeutics. London: Longman, Brown, Green, and Longmans. p.15.(1849)
4. Adv. Mater. 2012, 51, 2020–2067
5. Gendron, D.; Leclerc, M. Energy Environ. Sci. 2011, 4, 1225.
6. Kyaw, A.K. K.; Wang, D. H.; Gupta, V.; Zhang, J.; Chand, S.; Bazan, G. C.; Heeger, A. J. Adv. Mater. 2013,10.1002
7. Zhou, J.; Zuo, Y.; Wan, X.; Long, G., Zhang, Q.; Ni, W.; Liu, Y.; Li, Z.; He, G.; Li, C.; Kan, B.; Li, M.; Chen,Y. J. Am. Chem. Soc. 2013, 10.1021
8. D. Venkataraman,Serkan Yurt, B. Harihara Venkatraman, and Nagarjuna Gavvalapalli, J. Phys. Chem. Lett. 2010, 1, 947–958
9. Benanti, T. L.; Venkataraman, D. Organic Solar Cells: An Overview Focusing on Active Layer Morphology. Photosynth.Res. 2006, 87, 73– 81.
10. Sophie Roquet, Antonio Cravino, Philippe Leriche, Olivier Ale´veˆque, Pierre Fre` re, and Jean Roncal , J. AM. CHEM. SOC. 2006, 128, 3459-3466
11. Liu, Y.; Wan, X.; Wang, F.; Zhou, J.; Long, G.; Tian, J.; Chen, Y. Adv. Mater. 2011, 23, 5387.
12. Patra, D.; Chiang, C. -C.; Chen, W. -A.; Wei, K.-H.; Wu, M. -C.; Chu, C. -W. J. Mater. Chem A. 2013, 1, 10.1039
13. Zhou, J.; Zuo, Y.; Wan, X.; Long, G., Zhang, Q.; Ni, W.; Liu, Y.; Li,Z.; He, G.; Li, C.; Kan, B.; Li, M.; Chen,Y. J. Am. Chem. Soc. 2013,10.1021
14. Zhi-Guo Zhang, Yi-Liang Liu, Yang Yang, Keyue Hou, Bo Peng, Guangjin Zhao, Maojie Zhang, Xia Guo, En-Tang Kang, Yongfang Li, Macromolecules 2010, 43, 9376–9383.
15. Jung, I. H.; Yu, J.; Jeong, E.; Kwon, S.; Kong, H.; Lee, K.; Woo, H. Y.; Shim, H. K. Chem. Eur. J. 2010, 16, 3743.
16. M. C. Scharber,D. Mühlbacher M. Koppe,P. Denk,C. Waldauf,A. J. Heeger,C. J. Brabec,Adv. Mater. 2006, 18, 789.
17. M.A. Contreras, H. Wiesner et al. conference, Conference Record of the Twenty Fifth IEEE: 1996,.809-812.
18. P. J. Dale, A. P. Samantilleke, G. Zoppi, I. Forbes and L. M. Peter,J. Phys. D: Appl. Phys. 2008,41 ,085105
19. http://case.ntu.edu.tw/hs/wordpress/?p=17916
20. Gang Li, Vishal Shrotriya, Yan Yao, and Yang Yang, ,J. Appl. Phys. 2005,98, 043704
21. Jae Kwan Lee, Wan Li Ma, Christoph J. Brabec, Jonathan Yuen, Ji Sun Moon,Jin Young Kim, Kwanghee Lee,Guillermo C. Bazan, and Alan J. Heeger, J. AM. CHEM. SOC. 2008, 130, 3619-3623
22. Jin Kuen Park,a Chunki Kim,a Bright Walker,ac Thuc-Quyen Nguyen and Jung Hwa Seo, RSC Adv., 2012, 2, 2232–2234
23. D. Venkataraman, Serkan Yurt, B. Harihara Venkatraman, and Nagarjuna Gavvalapalli, J. Phys. Chem. Lett. 2010, 1, 947–958
24. Haijun Fan, Maojie Zhang,Xia Guo,Yongfang Li,and Xiaowei Zhan, ACS Appl. Mater. Interfaces 2011, 3, 3646–3653
25. Yuan, M. C.; Chiu, M. Y.; Liu, S. P.; Chen, C. M.; Wei, K. H.
Macromolecules 2010, 43, 6936–6938.
26. C. Melzer,E. J. Koop,V. D. Mihailetchi,P. W. M. Blom, Adv. Funct. Mater..2004.14.9
27. Vishal Shrotriya, Yan Yao, Gang Li, and Yang Yang,, APPLIED PHYSICS LETTERS 89, 063505 _2006
28. Elif Alturk Parlak, Solar Energy Materials & Solar Cells,2012, 100 174–184
29. Heejoo Kim, Won-Wook So, Sang-Jin Moon, Solar Energy Materials & Solar Cells,2007 ,91, 581–587
30. Zhou, J.; Zuo, Y.; Wan, X.; Long, G., Zhang, Q.; Ni, W.; Liu, Y.; Li, Z.; He, G.; Li, C.; Kan, B.; Li, M.; Chen,Y. J. Am. Chem. Soc. 2013, 10.1021