Charge generation dynamics in polymer/polymer solar cells studied by transient absorption spectroscopy

Journal of Photonics for Energy

Volumn 1, Issue 1, 2011, Pages

  Ohkita, Hideo ^a,b   Kosaka, Junya ^a   Guo, Jiamo ^a   Benten, Hiroaki ^a   Ito, Shinzaburo ^a  

^a KYOTO UNIVERSITY   (Japan)

^b JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

Author keywords

Charge generation; Phase separation; Polaron; Polymer fullerene solar cell; Polymer polymer solar cell; Transient absorption spectroscopy

Indexed keywords

BLEND FILMS; CHARGE GENERATION; EFFICIENT ENERGY TRANSFER; EXCITON MIGRATION; INTERFACIAL STRUCTURES; METHYL ETHERS; PICOSECONDS; POLARON FORMATION; POLY-3-HEXYLTHIOPHENE; POWER CONVERSION EFFICIENCIES; SINGLET EXCITONS; TIME CONSTANTS; TIME-SCALES; TRANSIENT ABSORPTION SPECTRA; TRANSIENT ABSORPTION SPECTROSCOPIES; WIDE GAP;

CONVERSION EFFICIENCY; DYNAMICS; ENERGY TRANSFER; ETHERS; EXCITONS; LASER EXCITATION; LASERS; PHASE SEPARATION; POLARONS; SOLAR CELLS;

POLYMERS;

EID: 84870605879     PISSN: None     EISSN: 19477988     Source Type: Journal    
DOI: 10.1117/1.3569105     Document Type: Article

References (22)

1. J. J. M. Halls, C. A. Walsh, N. C. Greenham, E. A. Marseglia, R. H. Friend, S. C. Moratti, and A. B. Holmes, "Efficient photodiodes from interpenetrating polymer networks", Nature (London) 376, 498-500 (1995).
2. G. Yu, J. Gao, J. C. Hummelen, F. Wudl, and A. J. Heeger, "Polymer photovoltaic cells: Enhanced efficiencies via a network of internal donor-acceptor heterojunctions", Science 270, 1789-1791 (1995). (Pubitemid 126635480)
3. H.-Y. Chen, J. Hou, S. Zhang, Y. Liang, G. Yang, Y. Yang, L. Yu, Y. Wu, and G. Li, "Polymer solar cells with enhanced open-circuit voltage and efficiency", Nat. Photonics 3, 649-653 (2009).
4. Y. Liang, Z. Xu, J. Xia, S.-T. Tsai, Y. Wu, G. Li, C. Ray, and L. Yu, "For the bright future-bulk heterojunction polymer solar cells with power conversion efficiency of 7.4%", Adv. Mater. 22, E135-E138 (2010).
5. M. A. Green, K. Emery, Y. Hishikawa, and W. Warta, "Solar cell efficiency tables (version 37)", Prog. Photovolt.: Res. Appl. 19, 1789-1791 (2011).
6. C. R. McNeill, A. Abrusci, J. Zaumseil, R. Wilson, M. J. McKieman, J. H. Burroughes, J. J. M. Halls, N. C. Greenham, and R. H. Friend, "Dual electron donor/electron acceptor character of a conjugated polymer in efficient photovoltaic diodes", Appl. Phys. Lett. 90, 193506 (2007).
7. T. W. Holcombe, C. H. Woo, D. F. J. Kavulak, B. C. Thompson, and J. M. J. Fréchet, "All-polymer photovoltaic devices of poly (3-(4-n-octyl)-phenylthiophene) from Grignard methathesis (GRIM) polymerization", J. Am. Chem. Soc. 131, 14160-14161 (2009).
8. W. Ma, C. Yang, X. Gong, K. Lee, and A. J. Heeger, "Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology", Adv. Funct. Mater. 15, 1617-1622 (2005). (Pubitemid 41454589)
9. G. Li, V. Shrotriya, J. Huang, Y. Yao, T. Moriarty, K. Emery, and Y. Yang, "High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends", Nat. Mater. 4, 864-868 (2005).
10. Y. Kim, S. Cook, S. M. Tuladhar, S. A. Choulis, J. Nelson, J. R. Durrant, D. D. C. Bradley, M. Giles, I. McCulloch, C.-S. Ha, and M. Ree, "A strong regioregularity effect in self-organizing conjugated polymer films and high-efficiency polythiophene: fullerene solar cells", Nat. Mater. 5, 197-203 (2006). (Pubitemid 43320634)
11. J. Y. Kim, S. H. Kim, H.-H. Lee, K. Lee, W. Ma, X. Gong, and A. J. Heeger, "New architecture for high-efficiency polymer photovoltaic cells using solution-based titanium oxide as an optical spacer", Adv. Mater. 18, 572-576 (2006). (Pubitemid 43385774)
12. M. D. Irwin, B. D. Buchholz, A. W. Hains, R. P. H. Chang, and T. J. Marks, "p-Type semiconducting nickel oxide as an efficiency-enhancing anode interfacial layer in polymer bulk-heterojunction solar cells", Proc. Natl. Acad. Sci. U. S. A. 105, 2783-2787 (2008). (Pubitemid 351723621)
13. Y. Kim, S. Cook, S. A. Choulis, J. Nelson, J. R. Durrant, and D. D. C. Bradley, "Organic photovoltaic devices based on blends of regioregular poly (3-hexylthiophene) and poly (9, 9-dioctylfluorene-co-benzothiazole)", Chem. Mater. 16, 4812-4818 (2004).
14. C. R. McNeill, A. Abrusci, I. Hwang, M. A. Ruderer, P. M. Buschbaum, and N. C. Greenham, "Photophysics and photocurrent generation in polythiophene/polyfluorene copolymer blends", Adv. Funct. Mater. 19, 3103-3111 (2009).
15. V. D. Mihailetchi, J. K. J. van Duren, P. W. M. Blom, J. C. Hummelen, R. A. J. Janssen, J. M. Kroon, M. T. Rispens, W. J. H. Verhees, and M. M. Wienk, "Electron transport in a methanofullerene", Adv. Funct. Mater. 13, 43-46 (2003).
16. M. C. Scharber, D. Mühlbacher, M. Koppe, P. Denk, C. Waldauf, A. J. Heeger, and C. J. Brabec, "Design rules for donors in bulk-heterojunction solar cells-towards 10% energyconversion efficiency", Adv. Mater. 18, 789-794 (2006).
17. J. Guo, H. Ohkita, H. Benten, and S. Ito, "Charge generation and recombination dynamics in poly (3-hexylthiophene)/fullerene blend films with different regioregularities and morphologies", J. Am. Chem. Soc. 132, 6154-6164 (2010).
18. S. Yamamoto, J. Guo, H. Ohkita, and S. Ito, "Formation of methanofullerene cation in bulk heterojunction polymer solar cells studied by transient absorption spectroscopy", Adv. Funct. Mater. 18, 2555-2562 (2008).
19. J. Guo, H. Ohkita, H. Benten, and S. Ito, "Near-IR femtosecond transient absorption spectroscopy of ultrafast polaron and triplet exciton formation in polythiophene films with different regioregularities", J. Am. Chem. Soc. 131, 16869-16880 (2009).
20. J. Jaczewska, I. Raptis, A. Budkowski, D. Goustouridis, J. Raczkowska, M. Sanopoulou, E. Pamuła, A. Bernasik, and J. Rysz, "Swelling of poly (3-alkylthiophene) films exposed to solvent vapors and humidity: Evaluation of solubility parameters", Synth. Met. 157, 726-732 (2007). (Pubitemid 350081008)
21. S. Nilsson, A. Bernasik, A. Budkowski, and E. Moons, "Morphology and phase segregation of spin-casted films of polyfluorene/PCBM blends", Macromolecules 40, 8291-8301 (2007). (Pubitemid 350150543)
22. A. C. Mayer, M. F. Toney, S. R. Scully, J. Rivnay, C. J. Brabec, M. Scharber, M. Koppe, M. Heeney, I. McCulloch, and M. D. McGehee, "Bimolecular crystals of fullerenes in conjugated polymers and the implications of molecular mixing for solar cells", Adv. Funct. Mater. 19, 1173-1179 (2009).