Open AccessLateral-tandem organic photovoltaic cells with carrier transport and generation layers
Author(s) -
Jaseela Palassery Ithikkal,
Yusuke Yabara,
Shoko Uto,
Seiichiro Izawa,
Masahiro Hiramoto
Publication year - 2021
Publication title -
applied physics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.911
H-Index - 94
eISSN - 1882-0786
pISSN - 1882-0778
DOI - 10.35848/1882-0786/ac28e6
Subject(s) - photocurrent , tandem , materials science , optoelectronics , photovoltaic system , absorption (acoustics) , fabrication , layer (electronics) , organic solar cell , nanotechnology , electrical engineering , polymer , composite material , medicine , alternative medicine , pathology , engineering
We report the fabrication and operation of organic photovoltaic cells with lateral junctions and separated carrier-generating and carrier-transporting layers. Significant photocurrent increase was observed by inserting carrier generating layer having strong visible absorption. For the lateral tandem cells, an increase in the number of unit cells increased the photocurrent while keeping the photovoltage constant. It is easier to increase the number of unit cells in lateral tandem cells compared to conventional vertical tandem cells because the adjustment of photocurrent density flowing in each unit cell is no longer necessary.