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Highly Efficient Tandem Polymer Photovoltaic Cells
Author(s) -
Sista Srinivas,
Park MiHyae,
Hong Ziruo,
Wu Yue,
Hou Jianhui,
Kwan Wei Lek,
Li Gang,
Yang Yang
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200901624
Subject(s) - tandem , materials science , polymer , photovoltaic system , characterization (materials science) , semiconductor , optoelectronics , nanotechnology , composite material , ecology , biology
Polymer tandem solar cells with a PCE of 5.8% are demonstrated by employing a p–n junction as an interlayer between the two subcells. The role of the interlayer and several important issues of the tandem structure is addressed including optical optimization, interfacial engineering, and accurate efficiency characterization (see image). It is revealed that the interlayer acts as a metal/semiconductor contact as opposed to a traditional tunnel junction in inorganic tandem cells.