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Performance enhancement of polymer-free carbon nanotube solar cells via transfer matrix modeling

Pfoh, Moritz and Glaser, Konstantin and Ludwig, Jens and Tune, Daniel D. and Dehm, Simone and Kayser, Christian and Colsmann, Alexander and Krupke, Ralph and Flavel, Benjamin S. (2016):
Performance enhancement of polymer-free carbon nanotube solar cells via transfer matrix modeling.
6, In: Advanced Energy Materials, (1), p. 1501345, ISSN 1614-6832, [Online-Edition: http://dx.doi.org/10.1002/aenm.201501345],
[Article]

Abstract

Polymer-free (6,5) single-walled carbon nanotubes (SWCNTs) prepared using the gel permeation approach are integrated into SWCNT:C60 solar cells. Evaporation-driven self-assembly is used to form large-area SWCNT thin films from the surfactant-stabilized aqueous suspensions. The thicknesses of various layers within the solar cell are optimized by theoretical modeling using transfer matrix calculations, where the distribution of the electric field within the stack is matched to light absorption by the SWCNTs through either their primary (S11) or secondary (S22) absorption peaks, or a combination thereof. The validity of the model is verified experimentally through a detailed parameter study and then used to develop SWCNT:C60 solar cells with high open-circuit voltage (0.44 V) as well as a cutting-edge internal quantum efficiency of up to 86% through the nanotube S11 transition, over an active area of 0.105 cm2.

Item Type: Article
Erschienen: 2016
Creators: Pfoh, Moritz and Glaser, Konstantin and Ludwig, Jens and Tune, Daniel D. and Dehm, Simone and Kayser, Christian and Colsmann, Alexander and Krupke, Ralph and Flavel, Benjamin S.
Title: Performance enhancement of polymer-free carbon nanotube solar cells via transfer matrix modeling
Language: English
Abstract:

Polymer-free (6,5) single-walled carbon nanotubes (SWCNTs) prepared using the gel permeation approach are integrated into SWCNT:C60 solar cells. Evaporation-driven self-assembly is used to form large-area SWCNT thin films from the surfactant-stabilized aqueous suspensions. The thicknesses of various layers within the solar cell are optimized by theoretical modeling using transfer matrix calculations, where the distribution of the electric field within the stack is matched to light absorption by the SWCNTs through either their primary (S11) or secondary (S22) absorption peaks, or a combination thereof. The validity of the model is verified experimentally through a detailed parameter study and then used to develop SWCNT:C60 solar cells with high open-circuit voltage (0.44 V) as well as a cutting-edge internal quantum efficiency of up to 86% through the nanotube S11 transition, over an active area of 0.105 cm2.

Journal or Publication Title: Advanced Energy Materials
Volume: 6
Number: 1
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 10 Jun 2016 05:25
Official URL: http://dx.doi.org/10.1002/aenm.201501345
Identification Number: doi:10.1002/aenm.201501345
Funders: B.S.F. gratefully acknowledges support from the Deutsche Forschungsgemeinschafts (DFG) Emmy Noether Program under grant number FL 834/1-1. R.K. acknowledges funding by the German Science Foundation INST 163/354-1 FUGG. K.G., C.K., and A.C. acknowledge, funding by the German Federal Ministry for Education and Research (BMBF) under contract 03EK3504 (project TAURUS) and support by the DFG Center for Functional Nanostructures (CFN). M.P. acknowledges Tanja Puerckhauer for PESA measurements.
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