Nickel(II) Nitrate Hole‐Transporting Layers for Single‐Junction Bulk Heterojunction Organic Solar Cells with a Record 19.02 % Efficiency

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(21)

Published: March 17, 2023

Abstract A facile strategy was developed here to improve the film quality of nickel‐based hole transporting layer (HTL) for efficient organic solar cell (OSC) applications. To prevent agglomeration Ni(NO 3 ) 2 during deposition, acetylacetonate added into precursor solution, which led formation an amorphous and glass‐like state. After thermal annealing (TA) treatment, film‐forming ability could be further improved. The additional UV‐ozone (UVO) treatment continuously improved increased work function conductivity such HTL. resulting TA & UVO modified Hacac HTL produced highly cells with exciting power conversion efficiencies 18.42 % 19.02 PM6 : BTP‐eC9 D18 BTP‐Th devices, respectively, much higher than control PEDOT PSS devices.

Language: Английский

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Self‐Templating Copolymerization to Produce Robust Conductive Nanocoatings Based on Conjugated Polymer Brushes with Implementable Memristive Characteristics

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 9, 2024

An effective synthesis of conductive polymer brushes, i.e., self-templating surface-initiated copolymerization (ST-SICP), is developed. It proceeds through pendant thiophene groups in the precursor multimonomer poly(3-methylthienyl methacrylate) (PMTM) brushes with free 3-methylthiophene (3MT) monomers leading to PMTM-co-P3MT brushes. This approach leads improved conformational freedom generated conjugated poly(thiophene)-based chains and their higher share respect conjugation only. As a result, best performing demonstrate high ohmic conductivity both out-of-plane in-plane direction. Furthermore, thanks covalent anchoring as well intra- intermolecular connections, highly stable mechanically robust nanocoatings are produced which can survive mechanical cleaning long-term storage under ambient conditions. Grafting ionic poly(sodium 4-styrenesulfonate) (PSSNa) between brings new properties such binary mixed that operate thin-film memristive coating switchable conductance. worth mentioning crucial synthetic steps, grafting PMTM by organocatalyzed atom transfer radical polymerization (SI-O-ATRP) PSSNa photoiniferter-mediated (SI-PIMP) conducted conditions using only microliter volumes reagents providing methodology be considered for use beyond laboratory scale.

Language: Английский

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Strategies to achieve efficiencies of over 19% for organic solar cells

Cell Reports Physical Science, Journal Year: 2025, Volume and Issue: 6(1), P. 102390 - 102390

Published: Jan. 1, 2025

Language: Английский

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Coherent spin mixing at charge transfer states for spin polaron pair dissociation and energy loss in organic bulk heterojunction solar cells

Communications Physics, Journal Year: 2025, Volume and Issue: 8(1)

Published: Jan. 30, 2025

Language: Английский

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Modulation of phase separation and molecular stacking in ternary organic solar cells by introducing a guest polymer with excellent miscibility with host polymer

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160135 - 160135

Published: Feb. 1, 2025

Language: Английский

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