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Bag S, Patel RJ, Bunha A, et al. Tandem Solar Cells from Accessible Low Band-Gap Polymers Using an Efficient Interconnecting Layer. ACS Appl Mater Interfaces. 2015;8(1):16-9doi: 10.1021/acsami.5b10170.
Bag, S., Patel, R. J., Bunha, A., Grand, C., Berrigan, J. D., Dalton, M. J., Leever, B. J., Reynolds, J. R., & Durstock, M. F. (2016). Tandem Solar Cells from Accessible Low Band-Gap Polymers Using an Efficient Interconnecting Layer. ACS applied materials & interfaces, 8(1), 16-9. https://doi.org/10.1021/acsami.5b10170
Bag, Santanu, et al. "Tandem Solar Cells from Accessible Low Band-Gap Polymers Using an Efficient Interconnecting Layer." ACS applied materials & interfaces vol. 8,1 (2016): 16-9. doi: https://doi.org/10.1021/acsami.5b10170
Bag S, Patel RJ, Bunha A, Grand C, Berrigan JD, Dalton MJ, Leever BJ, Reynolds JR, Durstock MF. Tandem Solar Cells from Accessible Low Band-Gap Polymers Using an Efficient Interconnecting Layer. ACS Appl Mater Interfaces. 2016 Jan 13;8(1):16-9. doi: 10.1021/acsami.5b10170. Epub 2015 Dec 29. PMID: 26699653.
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ACS Appl Mater Interfaces. 2016 Jan 13;8(1):16-9. doi: 10.1021/acsami.5b10170. Epub 2015 Dec 29.

Tandem Solar Cells from Accessible Low Band-Gap Polymers Using an Efficient Interconnecting Layer.

ACS applied materials & interfaces

Santanu Bag, Romesh J Patel, Ajaykumar Bunha, Caroline Grand, J Daniel Berrigan, Matthew J Dalton, Benjamin J Leever, John R Reynolds, Michael F Durstock

Affiliations

  1. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base , Dayton, Ohio 45433, United States.
  2. Biological and Nanoscale Technologies Division, UES Inc. Dayton, Ohio 45432, United States.
  3. School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Tech Polymer Network, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.

PMID: 26699653 DOI: 10.1021/acsami.5b10170

Abstract

Tandem solar cell architectures are designed to improve device photoresponse by enabling the capture of wider range of solar spectrum as compared to single-junction device. However, the practical realization of this concept in bulk-heterojunction polymer systems requires the judicious design of a transparent interconnecting layer compatible with both polymers. Moreover, the polymers selected should be readily synthesized at large scale (>1 kg) and high performance. In this work, we demonstrate a novel tandem polymer solar cell that combines low band gap poly isoindigo [P(T3-iI)-2], which is easily synthesized in kilogram quantities, with a novel Cr/MoO3 interconnecting layer. Cr/MoO3 is shown to be greater than 80% transparent above 375 nm and an efficient interconnecting layer for P(T3-iI)-2 and PCDTBT, leading to 6% power conversion efficiencies under AM 1.5G illumination. These results serve to extend the range of interconnecting layer materials for tandem cell fabrication by establishing, for the first time, that a thin, evaporated layer of Cr/MoO3 can work as an effective interconnecting layer in a tandem polymer solar cells made with scalable photoactive materials.

Keywords: interconnecting layer; isoindigo; polymers; scalable; solution processing; tandem solar cells

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