A thermal stable cathode buffer based on an inexpensive tetranuclear zinc(II) complex for organic photovoltaic devices
详细信息 查看全文
- 作者：ZhiGang Li (1) (2)
ZhiQiang Gao (1)
HaiShan Wang (1) (2)
Hui Zhang (1) (2)
XinYan Zhao (1) (2)
BaoXiu Mi (1) (2)
Wei Huang (2) - 关键词：organic photovoltaic devices ; thermal stability ; inexpensive ; cathode buffer layer
- 刊名：SCIENCE CHINA Chemistry
- 出版年：2012
- 出版时间：December 2012
- 年：2012
- 卷：55
- 期：12
- 页码：2562-2566
- 全文大小：589KB
- 参考文献：1. Peumans P, Yakimov A, Forrest SR. Small molecular weight organic thin-film photodetectors and solar cells. / J Appl Phys, 2003, 93: 3693鈥?723 CrossRef
2. Yu G, Gao J, Hummelen JC, Wudl F, Heeger AJ. Polymer photovoltaic cells: Enhanced efficiencies via a network of internal donor-acceptor heterojunctions. / Science, 1995, 270: 1789鈥?791 CrossRef
3. Heliatek achieves new world record for organic solar cells with certified 9. 8% cell efficiency. liatek.com/?p=1346&lang=en">http://www.heliatek.com/?p=1346&lang=en. 2012-01-17
4. He Z, Zhang C, Xu X, Zhang L, Huang L, Chen J, Wu H, Cao Y. Largely enhanced efficiency with a PFN/Al bilayer cathode in high efficiency bulk heterojunction photovoltaic cells with a low bandgap polycarbazole donor. / Adv Mater, 2011, 23: 3086鈥?089 CrossRef
5. Hong ZR, Huang ZH, Zeng XT. Utilization of copper phthalocyanine and bathocuproine as an electron transport layer in photovoltaic cells with copper phthalocyanine/buckminsterfullerene heterojunctions: Thickness effects on PV performances. / Thin Solid Films, 2007, 515: 3019鈥?024 CrossRef
6. Peumans P, Bulovi茅 V, Forrest SR. Efficient photon harvesting at high optical intensities in ultrathinorganic double-heterostructure photovoltaic diodes. / Appl Phys Lett, 2000, 76: 2650鈥?652 CrossRef
7. Vogel M, Doka S, Breyer Ch, Lux-Steiner MCh, Fostiropoulos K. On the function of a bathocuproine buffer layer in organic photovoltaic cells. / Appl Phys Lett, 2006, 89: 163501-1鈥?63501-3 CrossRef
8. Yook KS, Jeon SO, Kim OY, Lee JY. Thermally stable organic solar cells using small molecule exciton blocking layer. / Electrochem Solid-State Lett, 2011, 14: B59鈥揃62 CrossRef
9. Song QL, Li FY, Yang H, Wu HR, Wang XZ, Zhou W, Zhao JM, Ding XM, Huang CH, Hou XY. Small-molecule organic solar cells with improved stability. / Chem Phys Lett, 2005, 416: 42鈥?6 CrossRef
10. Chan MY, Lee CS, Lai SL, Fung MK, Wong FL, Sun HY, Lau K M, Lee ST. Efficient organic photovoltaic devices using a combination of exciton blocking layer and anodic buffer layer. / J Appl Phys, 2006, 100: 094506-1鈥?94506-3
11. Yu J, Wang N, Zang Y, Jiang Y. Organic photovoltaic cells based on TPBi as a cathode buffer layer. / Sol Energy Mater Sol Cells, 2011, 95: 664鈥?68 CrossRef
12. Wang N, Yu J, Zang Y, Huang J, Jiang Y. Effect of buffer layers on the performance of organic photovoltaic cells based on copper phthalocyanine and C60. / Sol Energy Mater Sol Cells, 2010, 94: 263鈥?66 CrossRef
13. Shi J, Tang CW, Chen CH. / US Patent, 1997. No. 564548
14. Ma Y, Lai T, Wu Y. A ligand-stabilized tetrameric zinc(II) cluster with high-efficiency emission from both singlet and triplet excited states for electroluminescent devices. / Adv Mater, 2000, 12: 433鈥?36 CrossRef
15. Lee C-F, Chin K-F, Peng S-M, Che C-M. A luminescent tetrameric zinc(II) complex containing the 7-azaindolate ligand photophysical properties and crystal structure. / J Chem Soc Dalton Trans, 1993, 467-470
16. Gao ZQ, Mi BX, Xu GZ, Wan YQ, Gong ML, Cheahab KW, Chen CH. An organic p-type dopant with high thermal stability for an organic semiconductor. / Chem Commun, 2008, 117-119
17. Rand BP, Li J, Xue J, Holmes RJ, Thompson ME, Forrest SR. Organic double-heterostructure photovoltaic cells employing thick tris(acetylacetonato)ruthenium(III) exciton-blocking layers. / Adv Mater, 2005, 17: 2714鈥?718 CrossRef
18. Song QL, Li CM, Wang ML, Sun XY, Hou XY. Role of buffer in organic solar cells using C60 as an acceptor. / Appl Phys Lett, 2007, 90: 071109-1鈥?71109-3
19. Kageyama H, Kajii H, Ohmori Y, Shirota Y. MoO3 as a cathode buffer layer material for the improvement of planar pn-heterojunction organic solar cell performance. / Appl Phys Express, 2011, 4: 032301-1鈥?32301-3 CrossRef
20. Tao Y, Yang C, Qin J. Organic host materials for phosphorescent organic light-emitting diodes. / Chem Soc Rev, 2011, 40: 2943鈥?970 CrossRef
21. Peumans P, Forrest SR. Very-high-efficiency double-heterostructure copper phthalocyanine/C60 photovoltaic cells. / Appl Phys Lett, 2001, 79: 126鈥?28 CrossRef
22. Ahlswede E, Hanisch J, Powall M. Comparative study of the influence of LiF, NaF, and KF on the performance of polymer bulk heterojunction solar cells. / Appl Phys Lett, 2007, 90: 163504-1鈥?63504-3 - 作者单位：ZhiGang Li (1) (2)
ZhiQiang Gao (1)
HaiShan Wang (1) (2)
Hui Zhang (1) (2)
XinYan Zhao (1) (2)
BaoXiu Mi (1) (2)
Wei Huang (2)
1. Jiangsu Engineering Centre for Flat-Panel Displays & Solid-state Lighting and School of Materials Science & Engineering, Nanjing University of Posts & Telecommunications, Nanjing, 210046, China
2. Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210046, China - ISSN：1869-1870
文摘
An inexpensive material, i.e., tetranuclear zinc(II) complex, (Zn4O(AID)6) [AID = 7-azaindolate], was utilized as a cathode buffer in organic photovoltaic (OPV) devices, leading to the improvement of device performance. Compared to OPV devices based on a conventional cathode buffer of TPBi (1,3,5-tris(2-N-phenylbenzimidazolyl)benzene), although the freshly prepared devices showed similar performance, when heated to a series of high temperatures under air, the short circuit current and the open circuit voltage of the Zn4O(AID)6 devices dropped more slowly, indicating the superiority of using Zn4O(AID)6 as a cathode buffer over TPBi in OPV devices.