Vocfrom a morphology point of view: The influence of molecular orientation on the open circuit voltage of organic planar heterojunction solar cells

Journal of Physical Chemistry C

Volumn 118, Issue 46, 2014, Pages 26462-26470

  Hörmann, Ulrich ^a   Lorch, Christopher ^b   Hinderhofer, Alexander ^b,c   Gerlach, Alexander ^b   Gruber, Mark ^a   Kraus, Julia ^a   Sykora, Benedikt ^a   Grob, Stefan ^a   Linderl, Theresa ^a   Wilke, Andreas ^d   Opitz, Andreas ^d   Hansson, Rickard ^e   Anselmo, Ana Sofia ^e   Ozawa, Yusuke ^c   Nakayama, Yasuo ^c   Ishii, Hisao ^c   Koch, Norbert ^d,f   Moons, Ellen ^e   Schreiber, Frank ^b   Brütting, Wolfgang ^a  

^a UNIVERSITY OF AUGSBURG   (Germany)

^b UNIVERSITY OF TÜBINGEN   (Germany)

^c CHIBA UNIVERSITY   (Japan)

^d HUMBOLDT UNIVERSITY   (Germany)

^e KARLSTAD UNIVERSITY   (Sweden)

^f HAHN MEITNER INSTITUT   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CRYSTALLINITY; FILM PREPARATION; GROWTH TEMPERATURE; HETEROJUNCTIONS; MORPHOLOGY; OPEN CIRCUIT VOLTAGE; ORGANIC SOLAR CELLS; PHOTOELECTROCHEMICAL CELLS; PHOTOVOLTAIC CELLS; TIMING CIRCUITS; X RAY ABSORPTION;

ACCEPTOR MOLECULES; DEVICE PERFORMANCE; HETEROJUNCTION SOLAR CELLS; INTERMOLECULAR COUPLING; MOLECULAR DONORS; ORIENTATION DEPENDENT; PREPARATION CONDITIONS; SUBSTRATE HEATING;

MOLECULAR ORIENTATION;

EID: 84914678099     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp506180k     Document Type: Article

References (53)

1. Rand, B.; Burk, D.; Forrest, S. Offset Energies at Organic Semiconductor Heterojunctions and their Influence on the Open-Circuit Voltage of Thin-Film Solar Cells. Phys. Rev. B 2007, 75, 115327.
2. Scharber, M. C.; Mühlbacher, D.; Koppe, M.; Denk, P.; Waldauf, C.; Heeger, A. J.; Brabec, C. J. Design Rules for Donors in Bulk-Heterojunction Solar Cells-Towards 10% Energy-Conversion Efficiency. Adv. Mater. 2006, 18, 789-794.
3. Veldman, D.; Meskers, S. C. J.; Janssen, R. A. J. The Energy of Charge-Transfer States in Electron Donor-Acceptor Blends: Insight into the Energy Losses in Organic Solar Cells. Adv. Funct. Mater. 2009, 19, 1939-1948.
4. Vandewal, K.; Tvingstedt, K.; Gadisa, A.; Inganäs, O.; Manca, J. V. Relating the Open-Circuit Voltage to Interface Molecular Properties of Donor:Acceptor Bulk Heterojunction Solar Cells. Phys. Rev. B 2010, 81, 125204.
5. Potscavage, W. J.; Sharma, A.; Kippelen, B. Critical Interfaces in Organic Solar Cells and their Influence on the Open-Circuit Voltage. Acc. Chem. Res. 2009, 42, 1758-1767.
6. Perez, M. D.; Borek, C.; Forrest, S. R.; Thompson, M. E. Molecular and Morphological Influences on the Open Circuit Voltages of Organic Photovoltaic Devices. J. Am. Chem. Soc. 2009, 131, 9281-9286.
7. 60-Based Planar Heterojunction Devices. Adv. Energy Mater. 2012, 2, 1100-1108.
8. Wilke, A.; et al. Correlation between Interface Energetics and Open Circuit Voltage in Organic Photovoltaic Cells. Appl. Phys. Lett. 2012, 101, 233301.
9. Widmer, J.; Tietze, M.; Leo, K.; Riede, M. Open-Circuit Voltage and Effective Gap of Organic Solar Cells. Adv. Funct. Mater. 2013, 23, 5814-5821.
10. Opitz, A.; Frisch, J.; Schlesinger, R.; Wilke, A.; Koch, N. Energy Level Alignment at Interfaces in Organic Photovoltaic Devices. J. Electron Spectrosc. Relat. Phenom. 2013, 190, 12-24.
11. Hörmann, U.; et al. Quantification of Energy Losses in Organic Solar Cells from Temperature-Dependent Device Characteristics. Phys. Rev. B 2013, 88, 235307.
12. Sze, S.; Ng, K. K. Physics of Semiconductor Devices, 3rd ed.; Wiley Interscience: Hoboken, NJ, 2007; p 95.
13. Yamamoto, S.; Orimo, A.; Ohkita, H.; Benten, H.; Ito, S. Molecular Understanding of the Open-Circuit Voltage of Polymer:-Fullerene Solar Cells. Adv. Energy Mater. 2012, 2, 229-237.
14. Schlenker, C. W.; Thompson, M. E. The Molecular Nature of Photovoltage Losses in Organic Solar Cells. Chem. Commun. 2011, 47, 3702-3716.
15. Rau, U. Reciprocity Relation between Photovoltaic Quantum Efficiency and Electroluminescent Emission of Solar Cells. Phys. Rev. B 2007, 76, 085303.
16. Kirchartz, T.; Taretto, K.; Rau, U. Efficiency Limits of Organic Bulk Heterojunction Solar Cells. J. Phys. Chem. C 2009, 113, 17958-17966.
17. Giebink, N. C.; Wiederrecht, G. P.; Wasielewski, M. R.; Forrest, S. R. Thermodynamic Efficiency Limit of Excitonic Solar Cells. Phys. Rev. B 2011, 83, 195326.
18. Koster, L. J. A.; Shaheen, S. E.; Hummelen, J. C. Pathways to a New Efficiency Regime for Organic Solar Cells. Adv. Energy Mater. 2012, 2, 1246-1253.
19. Ray, B.; Lundstrom, M. S.; Alam, M. A. Can Morphology Tailoring Improve the Open Circuit Voltage of Organic Solar Cells? Appl. Phys. Lett. 2012, 100, 013307.
20. Hinderhofer, A.; Schreiber, F. Organic-Organic Heterostructures: Concepts and Applications. ChemPhysChem 2012, 13, 628-643.
21. 60 solar cells: Theoretical Insight into the Impact of Interface Geometry. J. Am. Chem. Soc. 2009, 131, 15777-15783.
22. Yi, Y.; Coropceanu, V.; Brédas, J.-L. A Comparative Theoretical Study of Exciton-Dissociation and Charge-Recombination Processes in Oligothiophene/Fullerene and Oligothiophene/Perylenediimide Complexes for Organic Solar Cells. J. Mater. Chem. 2011, 21, 1479-1486.
23. 60 Organic Solar Cells: A Theoretical Description of Molecular Packing and Electronic Coupling at the Donor-Acceptor Interface. Adv. Funct. Mater. 2014, 24, 3790-3798.
24. Zimmerman, J. D.; Xiao, X.; Renshaw, C. K.; Wang, S.; Diev, V. V.; Thompson, M. E.; Forrest, S. R. Independent Control of Bulk and Interfacial Morphologies of Small Molecular Weight Organic Heterojunction Solar Cells. Nano Lett. 2012, 12, 4366-4371.
25. Dürr, A. C.; Schreiber, F.; Münch, M.; Karl, N.; Krause, B.; Kruppa, V.; Dosch, H. High Structural Order in Thin Films of the Organic Semiconductor Diindenoperylene. Appl. Phys. Lett. 2002, 81, 2276-2278.
26. Horlet, M.; Kraus, M.; Brütting, W.; Opitz, A. Diindenoperylene as Ambipolar Semiconductor: Influence of Electrode Materials and Mobility Asymmetry in Organic Field-Effect Transistors. Appl. Phys. Lett. 2011, 98, 233304.
27. Banerjee, R.; Novák, J.; Frank, C.; Lorch, C.; Hinderhofer, A.; Gerlach, A.; Schreiber, F. Evidence for Kinetically Limited Thickness Dependent Phase Separation in Organic Thin Film Blends. Phys. Rev. Lett. 2013, 110, 185506.
28. Hörmann, U.; Wagner, J.; Gruber, M.; Opitz, A.; Brütting, W. Approaching the Ultimate Open Circuit Voltage in Thiophene Based Single Junction Solar Cells by Applying Diindenoperylene as Acceptor. Phys. Status Solidi, Rapid Res. Lett. 2011, 5, 241-243.
29. Horowitz, G.; Bachet, B.; Yassar, A.; Lang, P.; Demanze, F.; Fave, J.-L.; Garnier, F. Growth and Characterization of Sexithiophene Single Crystals. Chem. Mater. 1995, 7, 1337-1341.
30. Yassar, A.; Horowitz, G.; Valat, P.; Wintgens, V.; Hmyene, M.; Deloffre, F.; Srivastava, P.; Lang, P.; Garnier, F.; Gamier, F. Exciton Coupling Effects in the Absorption and Photoluminescence of Sexithiophene Derivatives. J. Phys. Chem. 1995, 99, 9155-9159.
31. Wagner, J.; et al. High Fill Factor and Open Circuit Voltage in Organic Photovoltaic Cells with Diindenoperylene as Donor Material. Adv. Funct. Mater. 2010, 20, 4295-4303.
32. Opitz, A.; Wagner, J.; Brütting, W.; Hinderhofer, A.; Schreiber, F. Molecular Semiconductor Blends: Microstructure, Charge Carrier Transport, and Application in Photovoltaic Cells. Phys. Status Solidi 2009, 2694, 2683-2694.
33. 60 on Diindenoperylene Thin Films. J. Phys. Chem. C 2013, 117, 1053-1058.
34. Dürr, A.; et al. Interplay Between Morphology, Structure, and Electronic Properties at Diindenoperylene-Gold Interfaces. Phys. Rev. B 2003, 68, 115428.
35. Kowarik, S.; Gerlach, A.; Sellner, S.; Schreiber, F.; Cavalcanti, L.; Konovalov, O. Real-Time Observation of Structural and Orientational Transitions during Growth of Organic Thin Films. Phys. Rev. Lett. 2006, 96, 125504.
36. Scherrer, P. Bestimmung der Grösse und der inneren Struktur von Kolloidteilchen mittels Röntgenstrahlen. Nachr. Ges. Wiss. Goettingen, Math. Kl. 1918, 1918, 98-100.
37. Moser, A.; et al. A Disordered Layered Phase in Thin Films of Sexithiophene. Chem. Phys. Lett. 2013, 574, 51-55.
38. Servet, B.; et al. Polymorphism and Charge Transport in Vacuum-Evaporated Sexithiophene Films. Chem. Mater. 1994, 1809-1815.
39. Stöhr, J.; Outka, D. A. Determination of Molecular Orientations on Surfaces from the Angular Dependence of Near-Edge X-Ray-Absorption Fine-Structure Spectra. Phys. Rev. B 1987, 36, 7891-7905.
40. Koller, G.; Berkebile, S.; Krenn, J. R.; Netzer, F. P.; Oehzelt, M.; Haber, T.; Resel, R.; Ramsey, M. G. Heteroepitaxy of Organic-Organic Nanostructures. Nano Lett. 2006, 6, 1207-1212.
41. Sitter, H.; Resel, R.; Koller, G.; Ramsey, M.; Andreev, A.; Teichert, C. In Organic Nanostructures Next Generation Devices; Al-Shamery, K., Rubahn, H.-G., Sitter, H., Eds.; Springer: Berlin, 2008; pp 3-19.
42. Duhm, S.; Heimel, G.; Salzmann, I.; Glowatzki, H.; Johnson, R. L.; Vollmer, A.; Rabe, J. P.; Koch, N. Orientation-Dependent Ionization Energies and Interface Dipoles in Ordered Molecular Assemblies. Nat. Mater. 2008, 7, 326-332.
43. 2. J. Phys. Chem. C 2009, 113, 9251-9255.
44. Han, W. N.; et al. Quantitatively Identical Orientation-Dependent Ionization Energy and Electron Affinity of Diindenoperylene. Appl. Phys. Lett. 2013, 103, 253301.
45. Kraus, J. K. Physics of Molecular Donor-Acceptor Solar Cells. Ph.D. Thesis; University of Augsburg, 2013.
46. Wagner, J.; et al. Identification of Different Origins for s-Shaped Current Voltage Characteristics in Planar Heterojunction Organic Solar Cells. J. Appl. Phys. 2012, 111, 054509.
47. Fu, Y.-T.; Risko, C.; Brédas, J.-L. Intermixing at the Pentacene-Fullerene Bilayer Interface: A Molecular Dynamics Study. Adv. Mater. 2013, 25, 878-882.
48. Nalwa, K. S.; Kodali, H. K.; Ganapathysubramanian, B.; Chaudhary, S. Dependence of Recombination Mechanisms and Strength on Processing Conditions in Polymer Solar Cells. Appl. Phys. Lett. 2011, 99, 263301.
49. Foertig, A.; Wagenpfahl, A.; Gerbich, T.; Cheyns, D.; Dyakonov, V.; Deibel, C. Nongeminate Recombination in Planar and Bulk Heterojunction Organic Solar Cells. Adv. Energy Mater. 2012, 2, 1483-1489.
50. Faist, M. A.; Kirchartz, T.; Gong, W.; Ashraf, R. S.; McCulloch, I.; de Mello, J. C.; Ekins-Daukes, N. J.; Bradley, D. D. C.; Nelson, J. Competition Between the Charge Transfer State and the Singlet States of Donor or Acceptor Limiting the Efficiency in Polymer:Fullerene Solar Cells. J. Am. Chem. Soc. 2012, 134, 685-692.
51. Heinemeyer, U.; et al. Exciton-Phonon Coupling in Diindenoperylene Thin Films. Phys. Rev. B 2008, 78, 085210.
52. Nelson, J.; Kirkpatrick, J.; Ravirajan, P. Factors Limiting the Efficiency of Molecular Photovoltaic Devices. Phys. Rev. B 2004, 69, 035337.
53. Graham, K. R.; et al. Re-Evaluating the Role of Sterics and Electronic Coupling in Determining the Open-Circuit Voltage of Organic Solar Cells. Adv. Mater. 2013, 25, 6076-6082.