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An Alternative Approach to Simulate the Power Conversion Efficiency of Bulk Heterojunction Organic Solar Cells
Author(s) -
Ram Kiran Sreedhar,
Ompong David,
Rad Hooman Mehdizadeh,
Setsoafia Daniel Dodzi Yao,
Singh Jai
Publication year - 2021
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.202000597
Subject(s) - organic solar cell , energy conversion efficiency , active layer , polymer solar cell , materials science , acceptor , optoelectronics , nanotechnology , layer (electronics) , physics , composite material , polymer , condensed matter physics , thin film transistor
An alternative approach to simulate the power conversion efficiency ( η PCE ) of bulk heterojunction organic solar cells (BHJ OSCs), as a product of efficiencies of absorption ( η abs ), dissociation ( η dis ), and extraction ( η ext ), is presented. Although η abs and η dis do not directly contribute to the simulation of η PCE , the approach enables us in understanding their roles in optimizing the power conversion efficiency of BHJ OSCs. This method is applied to simulate η PCE as a function of the thickness of active layer for three different BHJ OSC structures, one with a fullerene acceptor and two with two different nonfullerene acceptors. The results are found to be in good agreement with those from the previous simulation and experimental works and are expected to be useful in optimizing the thickness of the active layer.