Designs and understanding of small molecule-based non-fullerene acceptors for realizing commercially viable organic photovoltaics DOI Creative Commons
Minjun Kim, Seung Un Ryu, Sang Ah Park

et al.

Chemical Science, Journal Year: 2021, Volume and Issue: 12(42), P. 14004 - 14023

Published: Jan. 1, 2021

This review describes the current understandings and significant features observed in NFA-based OPVs, with a particular focus on photophysical, electrical, morphological characteristics.

Language: Английский

Renewed Prospects for Organic Photovoltaics DOI
Guichuan Zhang, Francis Lin, Qi Feng

et al.

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(18), P. 14180 - 14274

Published: Aug. 5, 2022

Organic photovoltaics (OPVs) have progressed steadily through three stages of photoactive materials development: (i) use poly(3-hexylthiophene) and fullerene-based acceptors (FAs) for optimizing bulk heterojunctions; (ii) development new donors to better match with FAs; (iii) non-fullerene (NFAs). The application NFAs an A–D–A configuration (where A = acceptor D donor) has enabled devices efficient charge generation small energy losses (Eloss < 0.6 eV), resulting in substantially higher power conversion efficiencies (PCEs) than FA-based devices. discovery Y6-type (Y6 2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]-thiadiazolo[3,4-e]-thieno[2″,3″:4′,5′]thieno-[2′,3′:4,5]pyrrolo-[3,2-g]thieno-[2′,3′:4,5]thieno-[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile) A–DA′ D–A further propelled the PCEs go beyond 15% due smaller Eloss values (∼0.5 eV) external quantum efficiencies. Subsequently, Y6-series single-junction increased >19% may soon approach 20%. This review provides update recent progress OPV following aspects: developments novel donors, understanding structure–property relationships underlying mechanisms state-of-the-art OPVs, tasks underpinning commercialization such as device stability, module development, potential applications, high-throughput manufacturing. Finally, outlook prospects section summarizes remaining challenges technology.

Language: Английский

Citations

667
A unified description of non-radiative voltage losses in organic solar cells DOI
Xiankai Chen, Deping Qian, Yuming Wang

et al.

Nature Energy, Journal Year: 2021, Volume and Issue: 6(8), P. 799 - 806

Published: June 7, 2021

Language: Английский

Citations

336
Simple Non‐Fused Electron Acceptors Leading to Efficient Organic Photovoltaics DOI
Tian‐Jiao Wen, Zhi‐Xi Liu, Zeng Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(23), P. 12964 - 12970

Published: April 2, 2021

Abstract Despite the remarkable progress achieved in recent years, organic photovoltaics (OPVs) still need work to approach delicate balance between efficiency, stability, and cost. Herein, two fully non‐fused electron acceptors, PTB4F PTB4Cl, are developed via a two‐step synthesis from single aromatic units. The introduction of two‐dimensional chain halogenated terminals for these acceptors plays synergistic role optimizing their solid stacking orientation, thus promoting an elongated exciton lifetime fast charge‐transfer rate bulk heterojunction blends. As result, upon blending with PBDB‐TF polymer, has enabled single‐junction OPVs power conversion efficiencies 12.76 %, representing highest values among reported unfused so far.

Language: Английский

Citations

211
Reducing Voltage Losses in the A-DA′D-A Acceptor-Based Organic Solar Cells DOI Creative Commons
Jun Yuan, Huotian Zhang, Rui Zhang

et al.

Chem, Journal Year: 2020, Volume and Issue: 6(9), P. 2147 - 2161

Published: Sept. 1, 2020

Language: Английский

Citations

194
Low‐Bandgap Porphyrins for Highly Efficient Organic Solar Cells: Materials, Morphology, and Applications DOI Creative Commons
Ke Gao,

Yuanyuan Kan,

Xuebin Chen

et al.

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(32)

Published: June 25, 2020

Abstract With developments in materials, thin‐film processing, fine‐tuning of morphology, and optimization device fabrication, the performance organic solar cells (OSCs) has improved markedly recent years. Designing low‐bandgap materials been a focus order to maximize energy conversion. However, there are only few successful donor developed with near‐infrared (NIR) absorption that well matched existing efficient acceptors. Porphyrin shown great potential as useful building block for constructing due its large conjugated plane strong absorption. Porphyrin‐based have contribute many record‐high efficiencies small molecule, tandem, ternary, flexible, OSC/perovskite hybrid cells. Specifically, non‐fullerene small‐molecule recently high power conversion efficiency 12% using porphyrin. All these validated porphyrin derivatives effective made DPPEZnP‐TRs family best OSC field so far. Here, progress rational design, dynamics, multi‐functional applications starting from 2015 will be highlighted deepen understanding structure–property relationship. Finally, some future directions porphyrin‐based OSCs presented.

Language: Английский

Citations

178
Semitransparent organic photovoltaics for building-integrated photovoltaic applications DOI
Yongxi Li, Xinjing Huang, Hafiz K. M. Sheriff

et al.

Nature Reviews Materials, Journal Year: 2022, Volume and Issue: 8(3), P. 186 - 201

Published: Dec. 2, 2022

Language: Английский

Citations

170
Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers DOI Creative Commons
Yufei Zhong,

Martina Causa’,

Gareth John Moore

et al.

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: Feb. 11, 2020

Abstract Organic photovoltaics based on non-fullerene acceptors (NFAs) show record efficiency of 16 to 17% and increased photovoltage owing the low driving force for interfacial charge-transfer. However, potentially slows down charge generation, leading a tradeoff between voltage current. Here, we disentangle intrinsic charge-transfer rates from morphology-dependent exciton diffusion series polymer:NFA systems. Moreover, establish influence energetics electron hole transfer separately. We demonstrate that timescales remain at few hundred femtoseconds even near-zero force, which is consistent with predicted by Marcus theory in normal region, moderate electronic coupling re-organization energy. Thus, design highly efficient devices, energy offset donor:acceptor interface can be minimized without jeopardizing rate concerns about current-voltage tradeoff.

Language: Английский

Citations

158
Dilution effect for highly efficient multiple-component organic solar cells DOI
Lijian Zuo, Sae Byeok Jo,

Yaokai Li

et al.

Nature Nanotechnology, Journal Year: 2021, Volume and Issue: 17(1), P. 53 - 60

Published: Dec. 6, 2021

Language: Английский

Citations

150
Physical insights into non-fullerene organic photovoltaics DOI
Jiayu Wang, Yuan Xie, Kai Chen

et al.

Nature Reviews Physics, Journal Year: 2024, Volume and Issue: 6(6), P. 365 - 381

Published: April 15, 2024

Language: Английский

Citations

64
Effects of energy-level offset between a donor and acceptor on the photovoltaic performance of non-fullerene organic solar cells DOI
Chenyi Yang, Jianqi Zhang, Ningning Liang

et al.

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(32), P. 18889 - 18897

Published: Jan. 1, 2019

This work discussed the effect of energy-level offset on photovoltaic performance PBDB-TF-based non-fullerene OSCs and established a correlation between them.

Language: Английский

Citations

95