Ternary semitransparent organic solar cells with a laminated top electrode.
Tinted and colour-neutral semitransparent organic photovoltaic elements are of interest for building-integrated applications in windows, on glass roofs or on facades. We demonstrate a semitransparent organic photovoltaic cell with a dry-laminated top electrode that achieves a uniform average visible transmittance of 51% and a power conversion efficiency of 3%. The photo-active material is based on a majority blend composed of a visibly absorbing donor polymer and a fullerene acceptor, to which a selective near-infrared absorbing cyanine dye is added as a minority component. Our results show that organic ternary blends are attractive for the fabrication of semitransparent solar cells in general, because a guest component with a complementary absorption can compensate for the inevitably reduced current generation capability of a high-performing binary blend when applied as a thin, semitransparent film.
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Mohammed
M
Makha
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Paolo
P
Testa
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Surendra Babu
SB
Anantharaman
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Jakob
J
Heier
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Sandra
S
Jenatsch
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Nicolas
N
Leclaire
ETH Zürich, Nanotechnology Group , Rüschlikon , Switzerland.
Jean-Nicolas
JN
Tisserant
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Anna C
AC
Véron
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Lei
L
Wang
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology, Dübendorf, Switzerland;; Institut des Matériaux, Ecole Polytechnique Fédéral de Lausanne, Lausanne, Switzerland.
Frank
F
Nüesch
Laboratory for Functional Polymers, Empa, Swiss Federal Institute for Materials Science and Technology , Dübendorf , Switzerland.
Roland
R
Hany
101 Self-assembly / Self-organized materials; 209 Solar cell / Photovoltaics; 50 Energy materials; Organic photovoltaics; PCBM; lamination; ternary organic solar cells; transparent solar cell