Nonfullerene Acceptor Molecules for Bulk Heterojunction Organic Solar Cells

Chemical Reviews, Journal Year: 2018, Volume and Issue: 118(7), P. 3447 - 3507

Published: March 20, 2018

The bulk-heterojunction blend of an electron donor and acceptor material is the key component in a solution-processed organic photovoltaic device. In past decades, p-type conjugated polymer n-type fullerene derivative have been most commonly used acceptor, respectively. While advances device performance come from design new donors, derivatives almost exclusively as acceptors photovoltaics. Recently, nonfullerene materials, particularly small molecules oligomers, emerged promising alternative to replace derivatives. Compared fullerenes, these are generally synthesized diversified, low-cost routes based on building block materials with extraordinary chemical, thermal, photostability. facile functionalization affords excellent tunability their optoelectronic electrochemical properties. Within five years, there over 100 synthesized, power conversion efficiency solar cells has increased dramatically, ∼2% 2012 >13% 2017. This review summarizes this progress, aiming describe molecular strategy, provide insight into structure–property relationship, highlight challenges field facing, emphasis placed recent that demonstrated top-of-the-line performances. We also perspectives point view, wherein topics including ternary device, multijunction stability, active layer morphology, physics discussed.

Language: Английский

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Recent Advances in Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds

Chemical Reviews, Journal Year: 2021, Volume and Issue: 122(1), P. 565 - 788

Published: Dec. 1, 2021

This review surveys recent progress in the chemistry of polycyclic heteroaromatic molecules with a focus on structural diversity and synthetic methodology. The article covers literature published during period 2016-2020, providing an update to our first this topic (

Language: Английский

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From fullerene acceptors to non-fullerene acceptors: prospects and challenges in the stability of organic solar cells

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(41), P. 23361 - 23377

Published: Jan. 1, 2019

This review highlights the opportunities and challenges in stability of organic solar cells arising from emergence non-fullerene acceptors.

Language: Английский

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Harnessing the Structure‐Performance Relationships in Designing Non‐Fused Ring Acceptors for Organic Solar Cells

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(21)

Published: Feb. 17, 2023

Abstract The prerequisite for commercially viable organic solar cells (OSC) is to reduce the efficiency‐stability‐cost gap. Therefore, cost of materials should be reduced by minimizing synthetic steps, yet maintaining molecular planarity and efficiencies achieved fused ring acceptors (FRA). In this respect, developing non‐fused (NFRA) with suitable functionalization favor conformational effective packing beneficial cost‐effective. Presently, power conversion efficiency (PCE) NFRAs around 16 %, lower than 19 % FRAs. Despite their potential, a thorough understanding structural design necessary efficient OSCs. This article pays special attention concept developed in last years analyzed approach toward improvement, an important step technological application.

Language: Английский

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Non-fused ring electron acceptors for high-performance and low-cost organic solar cells: Structure-function, stability and synthesis complexity analysis

Nano Energy, Journal Year: 2023, Volume and Issue: 114, P. 108661 - 108661

Published: June 30, 2023

Language: Английский

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Direct C–H arylation: a “Greener” approach towards facile synthesis of organic semiconducting molecules and polymers

Journal of Materials Chemistry A, Journal Year: 2017, Volume and Issue: 5(23), P. 11550 - 11571

Published: Jan. 1, 2017

Direct C–H arylation enables “greener” synthesis of π-conjugated small molecules and polymers without tedious preactivation bonds.

Language: Английский

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Selenopheno[3,2-b]thiophene-Based Narrow-Bandgap Nonfullerene Acceptor Enabling 13.3% Efficiency for Organic Solar Cells with Thickness-Insensitive Feature

ACS Energy Letters, Journal Year: 2018, Volume and Issue: 3(12), P. 2967 - 2976

Published: Nov. 13, 2018

A new electron-rich central core (SeT) based on a fused selenopheno[3,2-b]thiophene unit and two nonfullerene small-molecule acceptors is synthesized for organic solar cells. Compared with SeTIC, chlorinated SeTIC4Cl exhibits stronger near-infrared absorption smaller bandgap (1.44 eV), down-shifted highest occupied molecular orbital/lowest unoccupied orbital energy levels, improved crystallinity higher electron mobility owing to the intramolecular charge-transfer effect. Therefore, SeTIC4Cl/PM6 blend films exhibited significantly power conversion efficiency broader light range, more balanced charge mobility, desirable nanoscale phase separation exciton dissociation reduced geminate recombination. As result, optimized device shows (PCE) of 13.32%, which value date selenophene-containing acceptor (NFA)-based binary Equally important, PCE insensitive variation in thickness active layer 300 nm. Our results demonstrate great potential designing high-performance NFAs.

Language: Английский

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Diketopyrrolopyrrole-based conjugated materials for non-fullerene organic solar cells

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(17), P. 10174 - 10199

Published: Jan. 1, 2019

This review summarizes the recent progress of DPP-based conjugated materials, including small molecules and polymers, for application in non-fullerene organic solar cells.

Language: Английский

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Ternary small molecule solar cells exhibiting power conversion efficiency of 10.3%

Nano Energy, Journal Year: 2017, Volume and Issue: 39, P. 571 - 581

Published: July 27, 2017

Language: Английский

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Perylene diimide based non-fullerene acceptors: top performers and an emerging class featuring N-annulation

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(11), P. 6775 - 6789

Published: Jan. 1, 2021

This perspective showcases new materials designs for perylene diimide based non-fullerene acceptors towards high performance photovoltaic devices.

Language: Английский

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