全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
科学通报  2012 

基于PCDTBT:PC71BM的半透明高效聚合物太阳能电池

, PP. 2836-2841

Keywords: 半透明,聚合物电池,转换效率

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过在聚合物电池内部加入Ag半透明增反膜,构建光学谐振腔,实现了光线在Ag薄层和金属电极之间的多次反射.这样可增加活性层对光的吸收,提高量子效率,进而大幅度提高短路电流,优化电池性能.实验中使用具有较低能带结构和宽吸收光谱的新型聚合物PCDTBT作为电子给体材料和PC71BM作为电子受体材料,通过控制薄膜生长过程和优化膜层厚度使转化效率达到5.08%.在此基础上,加入Ag作为半透明增反层,促使光线在Ag薄层和金属电极之间往复反射传输,大幅提高量子效率和短路电流.通过改变Ag薄层的厚度获得最大的短路电流密度和光电转换效率,实验得出当Ag厚度为8nm时,短路电流达到最大15.0mA/cm2,光电转换效率达到6.03%,从而达到了半透明增反层大幅提高电池性能的目的.

References

[1]  1 Tang C W. Two-layer organic photovoltaic cell. Appl Phys Lett, 1985, 48: 183-185
[2]  2 Bundgaard E, Krebs F C. Low band gap polymers for organic photovoltaics, Sol Energ Mat Sol C, 2007, 91: 954-985??
[3]  6 Reyes-Reyes M, Kim K, Carroll D L. High-efficiency photovoltaic devices based on annealed poly(3-hexylthiophene) and 1-(3-methox-ycarbonyl)-propyl-1-phenyl-(6,6)C61 blends. Appl Phys Lett, 2005, 87: 083506
[4]  7 Wu Z W, Song T, Jin Y Z, et al. High performance solar cell based on ultra-thin poly(3-hexylthiophene): Fullerene film without thermal and solvent annealing. Appl Phys Lett, 2011, 99: 143306??
[5]  8 Song T, Wu Z W, Tu Y, et al. Vertical phase segregation of hybrid poly (3-hexylthiophene) and fullerene derivative composites controlled via velocity of solvent drying. Semicond Sci Tech, 2011, 26: 034009
[6]  10 Huo L J, Hou J H, Zhang S Q, et al, A polybenzo[1,2-b:4,5-b’]dithiophene derivative with deep HOMO level and its application in high- performance polymer solar cells. Angew Chem Int Ed, 2010, 49: 1500-1503
[7]  11 Kochergin V, Neely L, Jao C Y, et al. Aluminum plasmonic nanostructures for improved absorption in organic photovoltaic devices. Appl Phys Lett, 2011, 98: 133305??
[8]  12 Sun B Q, Marx E, Greenham N C. Photovoltaic devices using blends of branched CdSe nanoparticles and conjugated polymers. Nano Lett, 2003, 3: 961-963??
[9]  15 Park S H, Roy A, Beaupré S, et al. Bulk heterojunction solar cells with internal quantum efficiency approaching 100%. Nat Photon, 2009, 3: 297-302??
[10]  3 黎立桂, 鲁广昊, 杨小牛, 等. 聚合物太阳能电池研究进展. 科学通报, 2006, 51: 2457-2468
[11]  4 Shrotriya V, Yao Y, Li G, et al. Effect of self-organization in polymer/fullerene bulk heterojunctions on solar cell performance. Appl Phys Lett, 2006, 89: 063505??
[12]  5 Tsang S W, Drolet N, Tse S C, et al. Impact of interfacial dipole on carrier transport in bulk heterojunction poly(3-hexylthiophene) and [6,-phenyl C61-butyric acid methyl ester blends. Appl Phys Lett, 2010, 97: 153306
[13]  9 Kawano K, Ito N, Nishimori T, et al. Open circuit voltage of stacked bulk heterojunction organic solar cells. Appl Phys Lett, 2006, 88: 073514??
[14]  13 张林森, 李素珍, 王力臻, 等. 电沉积制备的ZnO薄膜在染料敏化太阳能电池中光电性能的研究. 人工晶体学报, 2010, 39: 988-992
[15]  14 杨少鹏, 李占峰, 赵艳新, 等. ZnO薄层对体异质结有机太阳能电池性能的影响. 人工晶体学报, 2011, 40: 589-593
[16]  16 Li G, Shrotriya V, Huang J S, et al. High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends. Nat Mater, 2005, 4: 864-868??

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133