含噻吩并[3,4-c]吡咯-4 ,6 -二酮之施體–受體型共軛高分子的合成與性質分析及其太陽能電池之研究

Synthesis and Characterization of Thieno[3,4-c]pyrrole-4,6-dione Based Donor–Acceptor Conjugated Polymers for Bulk Heterojunction Solar Cells

劉士彬(Shi-Bin Liu)

指導教授 ： 韋光華

國立交通大學/工學院/材料科學與工程系所/碩士(2010年)

https://doi.org/10.6842/NCTU.2010.00817

摘要

本論文中合成了含拉電子基團thieno[3,4-c]pyrrole-4,6-dione (TPD) 與推電子單元bi(alkyl)thiophene 之PBTTPD 系列高分子; 並以TPD 基團分別與共平面性之推電子單元cyclopenta[2,1-b;3,4-b′]dithiophene (CPDT）及dithieno[3,2-b:2′,3′-d]silole (DTS) 共聚，合成具低光學能隙之PCPDTTPD 及PDTSTPD 高分子。 PBTTPD 系列高分子具高結晶性、低HOMO 能階、高熱穩定度等性質。 將此系列高分子與 [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) 混掺製成塊狀異質介面太陽能電池元件，皆具不錯之元件特性，其中PBTTPD1之元件光電轉換效率可達4.7 %。而PDTSTPD 與PCPDTTPD 兩高分子皆具低光學能隙及高熱穩定性等性質， 將此兩高分子分別與[6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) 混掺製成塊狀異質介面太陽能電池元件，其能量轉換效率分別為1.0 % 與1.6 %，且於加入微量添加劑後可使表面形貌更加均勻，使其能量轉換效率可分別提升至3.1 % 與2.7 %。

關鍵字

太陽能電池 ； HASH(0x9998ee8) ； 施體–受體型共軛高分子

並列摘要

In this thesis, a series of donor-acceptor (D–A) conjugated polymers,
PBTTPDs, containing electron-withdrawing thieno[3,4-c]pyrrole-4,6-dione
(TPD) and electron-donating bi(alkyl)thiophene units were synthesized. We also
prepared two TPD based low band-gap polymers, PCPDTTPD and PDTSTPD,
conatining electron-donating cyclopenta[2,1-b;3,4-b′]dithiophene (CPDT) and
dithieno[3,2-b:2′,3′-d]silole (DTS) units.
The PBTTPD based polymers exhibit high crystalline characteristics,
low-lying HOMO energy level, and excellent thermal properties. Bulk
heterojunction (BHJ) photovoltaic devices incorporating these polymers/
[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend displayed good
photovoltaic properties. Especially, the PBTTPD1 based device displayed a high
power conversion efficiency (PCE) of 4.7%. Moreover, both of PCPDTTPD and
PDTSTPD exhibit low band-gap properties (1.74 and 1.69 eV, respectively) and
excellent thermal properties. BHJ photovoltaic devices incorporating
PCPDTTPD/[6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) and
PDTSTPD/PC71BM blends displayed PCEs of 1.0% and 1.6%, respectively.
Furthermore, when incorporating small amount of additives into these blends,
their PCEs of devices were enhanced to 3.1% and 2.7%, individually, because of
their smoother and more homogeneous morphology of the blend.

並列關鍵字

Bulk Heterojunction Solar Cells ； HASH(0x9999050) ； Donor–Acceptor Conjugated Polymers

參考文獻

[2] T. T. Tsuzuki, J. Shirota, J. Rostalski, D. Meissner, Sol. Energy Mater. Sol.Cells, 2000, 61, 1.

[3] J. M. Nunzi, C. R. Physique. 2002, 3, 523.

[4] J. Hoppe, Ph.D. Thesis, Linz, 2004.

[8] J. Liu, Y. Shi, Y. Yang, Adv. Func. Mater. 2001, 11,420.

(b) V. D. Mihailetchi1, H. Xie, B. Boer, L. M. Popescu, J. C. Hummelen, P.W. M. Blom, L. J. A. Koster, Appl. Phys. Lett. 2006, 89, 012107.(c) V. Shrotriya, Y. Yao, G. Li, Y. Yang, Appl. Phys. Lett. 2006,89,063505.(d) G.Li, V. Shrotriya, J. Huang, Y. Yao, T. Moriarty, K.Emery, Y. Yang,