Organic tandem solar cells with complementary absorbing layers and a high open-circuit voltage

D. Cheyns; B. P. Rand; P. Heremans

doi:10.1063/1.3464169

Organic tandem solar cells with complementary absorbing layers and a high open-circuit voltage

D. Cheyns
, B. P. Rand
, P. Heremans

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

Abstract

Tandem organic solar cells with peak conversion efficiencies (η) of 5.15% are demonstrated. This is achieved by stacking two different planar heterojunction devices, each with a high open-circuit voltage (Vo_c). The phthalocyanine based donor materials in the employed subcells possess complementary absorption, a quality of critical importance to optimize photocurrent in a series connected tandem cell. The tandem structure produces Vo_c values of nearly 2 V, while fill factor remains above 60%. The measured corresponds to a 40% increase compared to of the optimal single cells.

Original language	English (US)
Article number	033301
Journal	Applied Physics Letters
Volume	97
Issue number	3
DOIs	https://doi.org/10.1063/1.3464169
State	Published - Jul 19 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3464169

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title = "Organic tandem solar cells with complementary absorbing layers and a high open-circuit voltage",

abstract = "Tandem organic solar cells with peak conversion efficiencies (η) of 5.15\% are demonstrated. This is achieved by stacking two different planar heterojunction devices, each with a high open-circuit voltage (Voc). The phthalocyanine based donor materials in the employed subcells possess complementary absorption, a quality of critical importance to optimize photocurrent in a series connected tandem cell. The tandem structure produces Voc values of nearly 2 V, while fill factor remains above 60\%. The measured corresponds to a 40\% increase compared to of the optimal single cells.",

author = "D. Cheyns and Rand, \{B. P.\} and P. Heremans",

note = "Funding Information: The authors thank J. Gilot for the useful discussions and K. Vasseur for J–V data. This work was supported by the IWT SBO-project 060843 “PolySpec” funded by the Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT), and by the European Community{\textquoteright}s Seventh Framework Programme (FP7/2007-2013) under Grant No. 212311 (ONE-P). ",

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AU - Cheyns, D.

AU - Rand, B. P.

AU - Heremans, P.

N1 - Funding Information: The authors thank J. Gilot for the useful discussions and K. Vasseur for J–V data. This work was supported by the IWT SBO-project 060843 “PolySpec” funded by the Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT), and by the European Community’s Seventh Framework Programme (FP7/2007-2013) under Grant No. 212311 (ONE-P).

PY - 2010/7/19

Y1 - 2010/7/19

N2 - Tandem organic solar cells with peak conversion efficiencies (η) of 5.15% are demonstrated. This is achieved by stacking two different planar heterojunction devices, each with a high open-circuit voltage (Voc). The phthalocyanine based donor materials in the employed subcells possess complementary absorption, a quality of critical importance to optimize photocurrent in a series connected tandem cell. The tandem structure produces Voc values of nearly 2 V, while fill factor remains above 60%. The measured corresponds to a 40% increase compared to of the optimal single cells.

AB - Tandem organic solar cells with peak conversion efficiencies (η) of 5.15% are demonstrated. This is achieved by stacking two different planar heterojunction devices, each with a high open-circuit voltage (Voc). The phthalocyanine based donor materials in the employed subcells possess complementary absorption, a quality of critical importance to optimize photocurrent in a series connected tandem cell. The tandem structure produces Voc values of nearly 2 V, while fill factor remains above 60%. The measured corresponds to a 40% increase compared to of the optimal single cells.

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Organic tandem solar cells with complementary absorbing layers and a high open-circuit voltage

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