On the field dependence of free charge carrier generation and recombination in blends of PCPDTBT/PC 70BM: Influence of solvent additives

Journal of Physical Chemistry Letters

Volumn 3, Issue 5, 2012, Pages 640-645

  Albrecht, Steve ^a   Schindler, Wolfram ^b   Kurpiers, Jona ^a   Kniepert, Juliane ^a   Blakesley, James C ^a   Dumsch, Ines ^c   Allard, Sybille ^c   Fostiropoulos, Konstantinos ^b   Scherf, Ullrich ^c   Neher, Dieter ^a  

^a UNIVERSITY OF POTSDAM   (Germany)

^b HAHN MEITNER INSTITUT   (Germany)

^c UNIVERSITY OF WUPPERTAL   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

BIMOLECULAR RECOMBINATION COEFFICIENT; CHARGE EXTRACTION; ELEMENTARY PROCESS; FIELD DEPENDENCE; FREE CARRIERS; FREE CHARGE CARRIERS; INTERNAL FIELD; NEGATIVE FIELDS; PHOTOGENERATION; RECOMBINATION COEFFICIENT;

CHARGE CARRIERS; SOLVENTS;

ADDITIVES;

EID: 84857769299     PISSN: None     EISSN: 19487185     Source Type: Journal    
DOI: 10.1021/jz3000849     Document Type: Article

References (32)

1. Service, R. F. Outlook Brightens for Plastic Solar Cells Science 2011, 332, 293-293
2. Chu, T.-Y.; Lu, J.; Beaupré, S.; Zhang, Y.; Pouliot, J.-R. m.; Wakim, S.; Zhou, J.; Leclerc, M.; Li, Z.; Ding, J. Bulk Heterojunction Solar Cells Using Thieno[3,4- c ]pyrrole-4,6-dione and Dithieno[3,2- b:2′,3′- d ]silole Copolymer with a Power Conversion Efficiency of 7.3% J. Am. Chem. Soc. 2011, 133, 4250-4253
3. Mühlbacher, D.; Scharber, M.; Morana, M.; Zhu, Z.; Waller, D.; Gaudiana, R.; Brabec, C. High Photovoltaic Performance of a Low-Bandgap Polymer Adv. Mater. 2006, 18, 2884-2889 (Pubitemid 44759496)
4. Amb, C. M.; Chen, S.; Graham, K. R.; Subbiah, J.; Small, C. E.; So, F.; Reynolds, J. R. Dithienogermole As a Fused Electron Donor in Bulk Heterojunction Solar Cells J. Am. Chem. Soc. 2011, 133, 10062-10065
5. Liang, Y. Y.; Xu, Z.; Xia, J. B.; Tsai, S. T.; Wu, Y.; Li, G.; Ray, C.; Yu, L. P. For the Bright Future-Bulk Heterojunction Polymer Solar Cells with Power Conversion Efficiency of 7.4% Adv. Mater. 2010, 22, E135-E138
6. Peet, J.; Kim, J. Y.; Coates, N. E.; Ma, W. L.; Moses, D.; Heeger, A. J.; Bazan, G. C. Efficiency Enhancement in Low-Bandgap Polymer Solar Cells by Processing with Alkane Dithiols Nat. Mater. 2007, 6, 497-500 (Pubitemid 47143454)
7. Price, S. C.; Stuart, A. C.; Yang, L.; Zhou, H.; You, W. Fluorine Substituted Conjugated Polymer of Medium Band Gap Yields 7% Efficiency in Polymer-Fullerene Solar Cells J. Am. Chem. Soc. 2011, 133, 4625-4631
8. Lee, J. K.; Ma, W. L.; Brabec, C. J.; Yuen, J.; Moon, J. S.; Kim, J. Y.; Lee, K.; Bazan, G. C.; Heeger, A. J. Processing Additives for Improved Efficiency from Bulk Heterojunction Solar Cells J. Am. Chem. Soc. 2008, 130, 3619-3623 (Pubitemid 351456066)
9. Sun, Y.; Takacs, C. J.; Cowan, S. R.; Seo, J. H.; Gong, X.; Roy, A.; Heeger, A. J. Efficient, Air-Stable Bulk Heterojunction Polymer Solar Cells Using MoOx as the Anode Interfacial Layer Adv. Mater. 2011, 23, 2226-2230
10. Agostinelli, T.; Ferenczi, T. A. M.; Pires, E.; Foster, S.; Maurano, A.; Müller, C.; Ballantyne, A.; Hampton, M.; Lilliu, S.; Campoy-Quiles, M. The Role of Alkane Dithiols in Controlling Polymer Crystallization in Small Band Gap Polymer:Fullerene Solar Cells J. Polym. Sci., Part B: Polym. Phys. 2011, 49, 717-724
11. Cho, S.; Lee, J. K.; Moon, J. S.; Yuen, J.; Lee, K.; Heeger, A. J. Bulk Heterojunction Bipolar Field-Effect Transistors Processed with Alkane Dithiol Org. Electron. 2008, 9, 1107-1111
12. Clarke, T.; Ballantyne, A.; Jamieson, F.; Brabec, C.; Nelson, J.; Durrant, J. Transient Absorption Spectroscopy of Charge Photogeneration Yields and Lifetimes in a Low Bandgap Polymer/Fullerene Film Chem. Commun. 2009, 89-91
13. Hwang, I. W.; Cho, S.; Kim, J. Y.; Lee, K.; Coates, N. E.; Moses, D.; Heeger, A. J. Carrier Generation and Transport in Bulk Heterojunction Films Processed with 1,8-Octanedithiol As a Processing Additive J. Appl. Phys. 2008, 104, 9
14. Jamieson, F. C.; Agostinelli, T.; Azimi, H.; Nelson, J.; Durrant, J. R. Field-Independent Charge Photogeneration in PCPDTBT/PC(70)BM Solar Cells J. Phys. Chem. Lett. 2010, 1, 3306-3310
15. Jarzab, D.; Cordella, F.; Gao, J.; Scharber, M.; Egelhaaf, H.-J.; Loi, M. A. Low-Temperature Behaviour of Charge Transfer Excitons in Narrow-Bandgap Polymer-Based Bulk Heterojunctions Adv. Energy Mater. 2011, 1, 604-609
16. Li, Z.; McNeill, C. R. Transient Photocurrent Measurements of PCDTBT:PC(70)BM and PCPDTBT:PC(70)BM Solar Cells: Evidence for Charge Trapping in Efficient Polymer/Fullerene Blends. J. Appl. Phys. 2011, 109.
17. Moet, D. J. D.; Lenes, M.; Morana, M.; Azimi, H.; Brabec, C. J.; Blom, P. W. M. Enhanced Dissociation of Charge-Transfer States in Narrow Band Gap Polymer:Fullerene Solar Cells Processed with 1,8-Octanedithiol Appl. Phys. Lett. 2010, 96, 213506
18. Nuzzo, D. D.; Aguirre, A.; Shahid, M.; Gevaerts, V. S.; Meskers, S. C. J.; Janssen, R. A. J. Improved Film Morphology Reduces Charge Carrier Recombination into the Triplet Excited State in a Small Bandgap Polymer-Fullerene Photovoltaic Cell Adv. Mater. 2010, 22, 4321-4
19. Scharber, M. C.; Lungenschmied, C.; Egelhaaf, H.-J.; Matt, G.; Bednorz, M.; Fromherz, T.; Gao, J.; Jarzab, D.; Loi, M. A. Charge Transfer Excitons in Low Band Gap Polymer Based Solar Cells and the Role of Processing Additives Energy Environ. Sci. 2011, 4, 5077-5083
20. Lenes, M.; Morana, M.; Brabec, C. J.; Blom, P. W. M. Recombination- Limited Photocurrents in Low Bandgap Polymer/Fullerene Solar Cells Adv. Funct. Mater. 2009, 19, 1106-1111
21. Kniepert, J.; Schubert, M.; Blakesley, J. C.; Neher, D. Photogeneration and Recombination in P3HT/PCBM Solar Cells Probed by Time-Delayed Collection Field Experiments J. Phys. Chem. Lett. 2011, 2, 700-705
22. Popovic, Z. D. A Study of Carrier Generation Mechanism in X-Metal-Free Phthalocyanine J. Chem. Phys. 1983, 78, 1552-1558
23. Maurano, A.; Hamilton, R.; Shuttle, C. G.; Ballantyne, A. M.; Nelson, J.; ORegan, B.; Zhang, W.; McCulloch, I.; Azimi, H.; Morana, M. Recombination Dynamics as a Key Determinant of Open Circuit Voltage in Organic Bulk Heterojunction Solar Cells: A Comparison of Four Different Donor Polymers Adv. Mater. 2010, 22, 4987-4992
24. Bange, S.; Schubert, M.; Neher, D. Charge Mobility Determination by Current Extraction under Linear Increasing Voltages: Case of Nonequilibrium Charges and Field-Dependent Mobilities Phys. Rev. B 2010, 81, 035209
25. Cowan, S. R.; Street, R. A.; Cho, S. N.; Heeger, A. J. Transient Photoconductivity in Polymer Bulk Heterojunction Solar Cells: Competition between Sweep-out and Recombination Phys. Rev. B 2011, 83, 8
26. Pfannmoeller, M.; Fluegge, H.; Benner, G.; Wacker, I.; Sommer, C.; Hanselmann, M.; Schmale, S.; Schmidt, H.; Hamprecht, F. A.; Rabe, T. Visualizing a Homogeneous Blend in Bulk Heterojunction Polymer Solar Cells by Analytical Electron Microscopy Nano Lett. 2011, 11, 3099-3107
27. Rogers, J. T.; Schmidt, K.; Toney, M. F.; Kramer, E. J.; Bazan, G. C. Structural Order in Bulk Heterojunction Films Prepared with Solvent Additives Adv. Mater. 2011, 23, 2284-2288
28. Bässler, H. Charge Transport in Disordered Organic Photoconductors - A Monte-Carlo Simulation Study Phys. Status Solidi B 1993, 175, 15-56
29. Bange, S.; Kuksov, A.; Neher, D.; Vollmer, A.; Koch, N.; Ludemann, A.; Heun, S. the Role of Poly(3,4-Ethylenedioxythiophene):Poly(Styrenesulphonate) As a Hole Injection Layer in a Blue-Emitting Polymer Light-Emitting Diode J. Appl. Phys. 2008, 104, 104506
30. Mozer, A. J.; Sariciftci, N. S.; Pivrikas, A.; Osterbacka, R.; Juska, G.; Brassat, L.; Bassler, H. Charge Carrier Mobility in Regioregular Poly(3-hexylthiophene) Probed by Transient Conductivity Techniques: A Comparative Study Phys. Rev. B 2005, 71, 035214
31. Dibb, G. F. A.; Kirchartz, T.; Credgington, D.; Durrant, J. R.; Nelson, J. Analysis of the Relationship between Linearity of Corrected Photocurrent and the Order of Recombination in Organic Solar Cells J. Phys. Chem. Lett. 2011, 2, 2407-2411
32. Chen, S.; Choudhury, K. R.; Subbiah, J.; Amb, C. M.; Reynolds, J. R.; So, F. Photo-Carrier Recombination in Polymer Solar Cells Based on P3HT and Silole-Based Copolymer Adv. Energy Mater. 2011, 1, 963-969