Key Parameters Requirements for Non-Fullerene-Based Organic Solar Cells with Power Conversion Efficiency >20%

被引:151
作者
Firdaus, Yuliar [1 ]
Le Corre, Vincent M. [2 ]
Khan, Jafar I. [1 ]
Kan, Zhipeng [1 ]
Laquai, Frederic [1 ]
Beaujuge, Pierre M. [1 ]
Anthopoulos, Thomas D. [1 ,3 ]
机构
[1] KAUST, KSC, Div Phys Sci & Engn, Thuwal 239556900, Saudi Arabia
[2] Univ Groningen, Zernike Inst Adv Mat, Nijenborgh 4, NL-9747 AG Groningen, Netherlands
[3] Imperial Coll London, Dept Phys, London SW7 2AZ, England
关键词
bulk-heterojunction solar cells; drift-diffusion model; nonfullerene acceptors; numerical device simulations; organic photovoltaics; tandem devices; GEMINATE RECOMBINATION; 13-PERCENT EFFICIENCY; ELECTRON-ACCEPTORS; POLYMER; TANDEM; VOLTAGE; PERFORMANCE;
D O I
10.1002/advs.201802028
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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.
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页数:10
相关论文
共 59 条
[1]   Impact of Nonfullerene Acceptor Core Structure on the Photophysics and Efficiency of Polymer Solar Cells [J].
Alamoudi, Maha A. ;
Khan, Jafar I. ;
Firdaus, Yuliar ;
Wang, Kai ;
Andrienko, Denis ;
Beaujuge, Pierre M. ;
Laquai, Frederic .
ACS ENERGY LETTERS, 2018, 3 (04) :802-811
[2]  
[Anonymous], NAT ENERGY
[3]   Reduced Recombination in High Efficiency Molecular Nematic Liquid Crystalline: Fullerene Solar Cells [J].
Armin, Ardalan ;
Subbiah, Jegadesan ;
Stolterfoht, Martin ;
Shoaee, Safa ;
Xiao, Zeyun ;
Lu, Shirong ;
Jones, David J. ;
Meredith, Paul .
ADVANCED ENERGY MATERIALS, 2016, 6 (22)
[4]   Nonradiative Energy Losses in Bulk-Heterojunction Organic Photovoltaics [J].
Azzouzi, Mohammed ;
Yan, Jun ;
Kirchartz, Thomas ;
Liu, Kaikai ;
Wang, Jinliang ;
Wu, Hongbin ;
Nelson, Jenny .
PHYSICAL REVIEW X, 2018, 8 (03)
[5]   Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages [J].
Baran, D. ;
Kirchartz, T. ;
Wheeler, S. ;
Dimitrov, S. ;
Abdelsamie, M. ;
Gorman, J. ;
Ashraf, R. S. ;
Holliday, S. ;
Wadsworth, A. ;
Gasparini, N. ;
Kaienburg, P. ;
Yan, H. ;
Amassian, A. ;
Brabec, C. J. ;
Durrant, J. R. ;
McCulloch, I. .
ENERGY & ENVIRONMENTAL SCIENCE, 2016, 9 (12) :3783-3793
[6]   Charge-Carrier Mobility Requirements for Bulk Heterojunction Solar Cells with High Fill Factor and External Quantum Efficiency >90% [J].
Bartelt, Jonathan A. ;
Lam, David ;
Burke, Timothy M. ;
Sweetnam, Sean M. ;
McGehee, Michael D. .
ADVANCED ENERGY MATERIALS, 2015, 5 (15)
[7]   Competition between recombination and extraction of free charges determines the fill factor of organic solar cells [J].
Bartesaghi, Davide ;
Perez, Irene del Carmen ;
Kniepert, Juliane ;
Roland, Steffen ;
Turbiez, Mathieu ;
Neher, Dieter ;
Koster, L. Jan Anton .
NATURE COMMUNICATIONS, 2015, 6
[8]   Beyond Langevin Recombination: How Equilibrium Between Free Carriers and Charge Transfer States Determines the Open-Circuit Voltage of Organic Solar Cells [J].
Burke, Timothy M. ;
Sweetnam, Sean ;
Vandewal, Koen ;
McGehee, Michael D. .
ADVANCED ENERGY MATERIALS, 2015, 5 (11)
[9]   How High Local Charge Carrier Mobility and an Energy Cascade in a Three-Phase Bulk Heterojunction Enable >90% Quantum Efficiency [J].
Burke, Timothy M. ;
McGehee, Michael D. .
ADVANCED MATERIALS, 2014, 26 (12) :1923-1928
[10]   An Efficient, "Burn in" Free Organic Solar Cell Employing a Nonfullerene Electron Acceptor [J].
Cha, Hyojung ;
Wu, Jiaying ;
Wadsworth, Andrew ;
Nagitta, Jade ;
Limbu, Saurav ;
Pont, Sebastian ;
Li, Zhe ;
Searle, Justin ;
Wyatt, Mark F. ;
Baran, Derya ;
Kim, Ji-Seon ;
McCulloch, Iain ;
Durrant, James R. .
ADVANCED MATERIALS, 2017, 29 (33)