Polythiophene and its derivatives for all-polymer solar cells

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(27), P. 16251 - 16267

Published: Jan. 1, 2024

We review polythiophene and its derivative (PT)-based polymer donors for all-PSCs, focusing on material design, morphology optimization strategies, the selection design of acceptors that complement their properties.

Language: Английский

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Facilely Modified Nickel‐Based Hole Transporting Layers for Organic Solar Cells with 19.12% Efficiency and Enhanced Stability

Small, Journal Year: 2024, Volume and Issue: 20(34)

Published: April 10, 2024

Abstract Hole transporting layers (HTLs), strategically positioned between electrode and light absorber, play a pivotal role in shaping charge extraction transport organic solar cells (OSCs). However, the commonly used poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL, with its hygroscopic acidic nature, undermines operational durability of OSC devices. Herein, an environmentally friendly approach is developed utilizing nickel acetate tetrahydrate (NiAc·4H 2 O) [2‐(9H‐carbazol‐9‐yl)ethyl] phosphonic acid (2PACz) as NiAc·4H O/2PACz aiming at overcoming limitations posed by conventional PEDOT:PSS one. Encouragingly, remarkable power conversion efficiency (PCE) 19.12% obtained for OSCs employing surpassing that devices HTL (17.59%), which ranked among highest ones OSCs. This improvement attributed to appropriate work function, enhanced hole mobility, facilitated exciton dissociation efficiency, lower recombination loss O/2PACz‐based Furthermore, exhibit superior stability compared their PEDOT:PSS‐based counterparts. Of significant note, demonstrates broad generality, boosting PCE PM6:PY‐IT PM6:Y6‐based from 16.47% 16.79% (with analogs HTLs) 17.36% 17.57%, respectively. These findings underscore substantial potential advancing OSCs, offering improved performance stability, thereby opening avenue highly efficient reliable energy harvesting technologies.

Language: Английский

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Cost-efficient recycling of organic photovoltaic devices

Joule, Journal Year: 2024, Volume and Issue: 8(9), P. 2523 - 2538

Published: June 26, 2024

Language: Английский

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Utilization of Polycyclic Aromatic Solid Additives for Morphology and Thermal Stability Enhancement in Photoactive Layers of Organic Solar Cells

Small, Journal Year: 2024, Volume and Issue: 20(46)

Published: Aug. 6, 2024

Abstract Volatile solid additives have emerged as a promising strategy for enhancing film morphology and promoting the power conversion efficiency (PCE) of organic solar cells (OSCs). Herein, series novel polycyclic aromatic with analogous chemical structures, including fluorene (FL), dibenzothiophene (DBT), dibenzofuran (DBF) derived from crude oils, are presented incorporated into OSCs. All these exhibit strong interactions electron‐deficient terminal groups L8‐BO within bulk‐heterojunction Moreover, they demonstrate significant sublimation during thermal annealing, leading to increase free volumes rearrangement recrystallization L8‐BO. This phenomenon leads an improved elevated glass‐transition temperature photoactive layers. Consequently, PCE PM6:L8‐BO blend has been boosted 16.60% 18.60% 40 wt% DBF additives, champion 19.11% achieved ternary PM6:L8‐BO:BTP‐eC9 Furthermore, prolonged shelf stability observed in OSCs additives. study emphasizes synergic effect volatile on performance OSCs, highlighting their potential advancing field photovoltaics.

Language: Английский

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Elucidating the optimal material combinations of organic photovoltaics for maximum industrial viability

Joule, Journal Year: 2024, Volume and Issue: 8(8), P. 2208 - 2219

Published: July 24, 2024

Language: Английский

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