期刊
NATURE COMMUNICATIONS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms10279
关键词
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资金
- National Research Foundation of Korea (NRF) - Korean government (MSIP) [NRF-2014R1A2A1A09006137]
- Technology Development Program to Solve Climate Changes of the NRF - (MSIP) [NRF-2015M1A2A2057510]
- R&D program of MSIP/COMPA [2015K000199]
- 'Basic Research Projects in High-tech Industrial Technology' Project by GIST
- Core Technology Development Program for Next-generation Solar Cells of the Research Institute for Solar and Sustainable Energies, GIST
The fabrication of organic photovoltaic modules via printing techniques has been the greatest challenge for their commercial manufacture. Current module architecture, which is based on a monolithic geometry consisting of serially interconnecting stripe-patterned subcells with finite widths, requires highly sophisticated patterning processes that significantly increase the complexity of printing production lines and cause serious reductions in module efficiency due to so-called aperture loss in series connection regions. Herein we demonstrate an innovative module structure that can simultaneously reduce both patterning processes and aperture loss. By using a charge recombination feature that occurs at contacts between electron-and hole-transport layers, we devise a series connection method that facilitates module fabrication without patterning the charge transport layers. With the successive deposition of component layers using slot-die and doctor-blade printing techniques, we achieve a high module efficiency reaching 7.5% with area of 4.15 cm(2).
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