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Stability of Polymer Solar Cells
Author(s) -
Jørgensen Mikkel,
Norrman Kion,
Gevorgyan Suren A.,
Tromholt Thomas,
Andreasen Birgitta,
Krebs Frederik C.
Publication year - 2012
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.201104187
Subject(s) - materials science , organic solar cell , fabrication , energy conversion efficiency , photovoltaics , nanotechnology , polymer solar cell , polymer , degradation (telecommunications) , engineering physics , stability (learning theory) , photovoltaic system , optoelectronics , composite material , computer science , electrical engineering , engineering , telecommunications , medicine , alternative medicine , pathology , machine learning
Organic photovoltaics (OPVs) evolve in an exponential manner in the two key areas of efficiency and stability. The power conversion efficiency (PCE) has in the last decade been increased by almost a factor of ten approaching 10%. A main concern has been the stability that was previously measured in minutes, but can now, in favorable circumstances, exceed many thousands of hours. This astonishing achievement is the subject of this article, which reviews the developments in stability/degradation of OPVs in the last five years. This progress has been gained by several developments, such as inverted device structures of the bulk heterojunction geometry device, which allows for more stable metal electrodes, the choice of more photostable active materials, the introduction of interfacial layers, and roll‐to‐roll fabrication, which promises fast and cheap production methods while creating its own challenges in terms of stability.