Imperial College London

ProfessorThomasAnthopoulos

Faculty of Natural SciencesDepartment of Physics

Visiting Professor
 
 
 
//

Contact

 

+44 (0)20 7594 6669thomas.anthopoulos Website

 
 
//

Assistant

 

Mrs Carolyn Dale +44 (0)20 7594 7579

 
//

Location

 

1111Blackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Firdaus:2019:10.1002/advs.201802028,
author = {Firdaus, Y and Le, Corre VM and Khan, JI and Kan, Z and Laquai, F and Beaujuge, PM and Anthopoulos, TD},
doi = {10.1002/advs.201802028},
journal = {Advanced Science},
title = {Key Parameters Requirements for Non-Fullerene-Based Organic Solar Cells with Power Conversion Efficiency >20%},
url = {http://dx.doi.org/10.1002/advs.201802028},
year = {2019}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - © 2019 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The reported power conversion efficiencies (PCEs) of nonfullerene acceptor (NFA) based organic photovoltaics (OPVs) now exceed 14% and 17% for single-junction and two-terminal tandem cells, respectively. However, increasing the PCE further requires an improved understanding of the factors limiting the device efficiency. Here, the efficiency limits of single-junction and two-terminal tandem NFA-based OPV cells are examined with the aid of a numerical device simulator that takes into account the optical properties of the active material(s), charge recombination effects, and the hole and electron mobilities in the active layer of the device. The simulations reveal that single-junction NFA OPVs can potentially reach PCE values in excess of 18% with mobility values readily achievable in existing material systems. Furthermore, it is found that balanced electron and hole mobilities of >10 −3 cm 2 V −1 s −1 in combination with low nongeminate recombination rate constants of 10 −12 cm 3 s −1 could lead to PCE values in excess of 20% and 25% for single-junction and two-terminal tandem OPV cells, respectively. This analysis provides the first tangible description of the practical performance targets and useful design rules for single-junction and tandem OPVs based on NFA materials, emphasizing the need for developing new material systems that combine these desired characteristics.
AU - Firdaus,Y
AU - Le,Corre VM
AU - Khan,JI
AU - Kan,Z
AU - Laquai,F
AU - Beaujuge,PM
AU - Anthopoulos,TD
DO - 10.1002/advs.201802028
PY - 2019///
TI - Key Parameters Requirements for Non-Fullerene-Based Organic Solar Cells with Power Conversion Efficiency >20%
T2 - Advanced Science
UR - http://dx.doi.org/10.1002/advs.201802028
ER -