Efficient small molecule bulk heterojunction solar cells with high fill factors via pyrene-directed molecular self-assembly
AuthorsLee, Olivia P.
Yiu, Alan T.
Holcombe, Thomas W.
Millstone, Jill E.
Douglas, Jessica D.
Chen, Mark S.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
KAUST Solar Center (KSC)
Chemical Science Program
MetadataShow full item record
AbstractEfficient organic photovoltaic (OPV) materials are constructed by attaching completely planar, symmetric end-groups to donor-acceptor electroactive small molecules. Appending C2-pyrene as the small molecule end-group to a diketopyrrolopyrrole core leads to materials with a tight, aligned crystal packing and favorable morphology dictated by π-π interactions, resulting in high power conversion efficiencies and high fill factors. The use of end-groups to direct molecular self-assembly is an effective strategy for designing high-performance small molecule OPV devices. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
SponsorsThis work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Portions of this research were carried out at the Stanford Synchrotron Radiation Laboratory, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. C.H.W. and T.W.H. thank the National Science Foundation for graduate student fellowships, and M.S.C. thanks the Camille and Henry Dreyfus Postdoctoral Program in Environmental Chemistry for fellowship. The authors thank Dr. Antonio DiPasquale for acquiring the crystal structure.
Is Supplemented ByLee, O. P., Yiu, A. T., Beaujuge, P. M., Woo, C. H., Holcombe, T. W., Millstone, J. E., … Frechet, J. M. J. (2012). CCDC 831594: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccwxbmq
- Interrelation between crystal packing and small-molecule organic solar cell performance.
- Authors: Fitzner R, Elschner C, Weil M, Uhrich C, Körner C, Riede M, Leo K, Pfeiffer M, Reinold E, Mena-Osteritz E, Bäuerle P
- Issue date: 2012 Feb 2
- Vacuum-deposited small-molecule organic solar cells with high power conversion efficiencies by judicious molecular design and device optimization.
- Authors: Chen YH, Lin LY, Lu CW, Lin F, Huang ZY, Lin HW, Wang PH, Liu YH, Wong KT, Wen J, Miller DJ, Darling SB
- Issue date: 2012 Aug 22
- A naphthodithiophene-diketopyrrolopyrrole donor molecule for efficient solution-processed solar cells.
- Authors: Loser S, Bruns CJ, Miyauchi H, Ortiz RP, Facchetti A, Stupp SI, Marks TJ
- Issue date: 2011 Jun 1
- Grooved nanowires from self-assembling hairpin molecules for solar cells.
- Authors: Tevis ID, Tsai WW, Palmer LC, Aytun T, Stupp SI
- Issue date: 2012 Mar 27
- Solution-processed bulk-heterojunction solar cells containing self-organized disk-shaped donors.
- Authors: Takemoto K, Karasawa M, Kimura M
- Issue date: 2012 Nov