A Hybrid Planar–Mixed Molecular Heterojunction Photovoltaic Cell


  • We gratefully acknowledge the National Renewable Energy Laboratory, the Air Force Office of Scientific Research, and Global Photonic Energy Corporation for partial support of this work.


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An organic hybrid planar-mixed molecular heterojunction photovoltaic cell, whose photoactive region consists of a mixed layer of donor and acceptor molecules sandwiched between homogeneous donor and acceptor layers, is demonstrated. A power conversion efficiency of (5.0 ± 0.3) % under 1 sun AM1.5G solar illumination is achieved. The cell exhibits a low resistance to charge transport and a high exciton-diffusion efficiency.