Layer‐by‐Layer Processed PM6:Y6‐Based Stable Ternary Polymer Solar Cells with Improved Efficiency over 18% by Incorporating an Asymmetric Thieno[3,2‐b]indole‐Based Acceptor DOI
Jinglong Chen, Jiamin Cao, Longfei Liu

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(25)

Published: March 16, 2022

Abstract Although much research on device engineering have brought about significant improvements in PM6:Y6‐based polymer solar cell (PSCs) performance, there is still a lack of relevant to solve the problems caused by over‐aggregation Y6 and long‐term stability morphology. Herein, newly designed synthesized low‐bandgap asymmetric small molecule acceptor TIT‐2Cl based thieno[3,2‐ b ]indole core elaborately introduced into PSCs suppress molecules with significantly increased efficiency from 15.78% 17.00%. Moreover, addition contributes improved light harvesting, lowest unoccupied molecular orbital level Y6:TIT‐2Cl, charge separation, transport, extraction. Simultaneously, are further prepared using progressive spin‐coating method layer‐by‐layer (LBL). Due formation vertical phase distribution improvement carrier transport champion LBL‐type ternary reaches 18.18%, which highest reported for PSCs, along superior compositional insensitivity. Therefore, results show that combination strategy incorporating appropriate LBL an effective means fabricate highly efficient stable PSCs.

Language: Английский

Regioisomer‐Free Difluoro‐Monochloro Terminal‐based Hexa‐Halogenated Acceptor with Optimized Crystal Packing for Efficient Binary Organic Solar Cells DOI Open Access
Yan Lü, Heng Zhang, Qiaoshi An

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(46)

Published: Sept. 2, 2022

Herein, we synthesized new hetero-halogenated end groups with well-determined fluorinated and chlorinated substitutions (o-FCl-IC FClF-IC), regioisomer-free small molecular acceptors (SMAs) Y-Cl, Y-FCl, Y-FClF distinct terminals, respectively. The single-crystal structures theoretical calculations indicate that exhibits more compact three-dimensional network packing significant π-π electronic coupling compared to Y-FCl. From Y-Cl Y-FCl Y-FClF, the neat films exhibit a narrower optical band gap gradually enhanced electron mobility crystallinity. PM6 : blend film strongest crystallinity preferential face-on packing, desirable fibrous morphology suitable phase segregation, highest balanced charge mobilities among three films. Overall, organic solar cells (OSCs) deliver remarkable efficiency of 17.65 %, outperforming which is best PCE for reported hetero-halogens-based SMAs in binary OSCs. Our results demonstrate difluoro-monochloro hetero-terminal superior regio-regular unit enhancing intermolecular crystal photovoltaic performance SMAs.

Language: Английский

Citations

91
Double Asymmetric Core Optimizes Crystal Packing to Enable Selenophene‐based Acceptor with Over 18 % Efficiency in Binary Organic Solar Cells DOI
Xin Zhao, Qiaoshi An, Heng Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(10)

Published: Jan. 2, 2023

Side-chain tailoring is a promising method to optimize the performance of organic solar cells (OSCs). However, asymmetric alkyl chain-based small molecular acceptors (SMAs) are still difficult afford. Herein, we adopted novel n-nonyl/undecyl substitution strategy and synthesized two A-D1 A'D2 -A double isomeric SMAs with selenophene-based central core for OSCs. Crystallographic analysis indicates that AYT9Se11-Cl forms more compact order intermolecular packing compared AYT11Se9-Cl, which contributed higher electron mobility in neat film. Moreover, PM6 : blend film shows better morphology appropriate phase separation distinct face-on orientation than AYT11Se9-Cl. The OSCs obtain superior PCE 18.12 % AYT11Se9-Cl (17.52 %), best efficiency selenium-incorporated binary BHJ Our findings elucidate chains precisely modulates crystal enhances photovoltaic selenophene-incorporated SMAs.

Language: Английский

Citations

79
Over 16% efficiency all-polymer solar cells by sequential deposition DOI

Bangbang Li,

Xuanyu Zhang, Ziang Wu

et al.

Science China Chemistry, Journal Year: 2022, Volume and Issue: 65(6), P. 1157 - 1163

Published: May 10, 2022

Language: Английский

Citations

77
Recent Developments of Polymer Solar Cells with Photovoltaic Performance over 17% DOI
Jianghao Jin,

Qiao Wang,

Kaige Ma

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(14)

Published: Jan. 22, 2023

Abstract With the emergence of ADA'DA‐type (Y‐series) non‐fullerene acceptors (NFAs), power conversion efficiencies (PCEs) organic photovoltaic devices have been constantly refreshed and gradually reached 20% in recent years (19% for single junction tandem device). The possess specific design concept, which greatly enrich NFA types excellent compatibility with many donor materials. It is gratifying to note that previously underperforming materials combine these regulated shine again. Nowadays, concept modular widely used research donors, injecting new vitality into field photovoltaics. Furthermore, also promote multicomponent devices, bilayer processing solvent engineering, additive engineering. Herein, latest progresses polymer solar cells efficiency over 17% are briefly reviewed from aspects active material design, interface development, device technology. At last, opportunities challenges commercialization future discussed.

Language: Английский

Citations

74
Achieving 19.4% organic solar cell via an in situ formation of p-i-n structure with built-in interpenetrating network DOI Creative Commons
Ying Zhang,

Wanyuan Deng,

Christopher E. Petoukhoff

et al.

Joule, Journal Year: 2024, Volume and Issue: 8(2), P. 509 - 526

Published: Jan. 11, 2024

Language: Английский

Citations

73
Pushing the Efficiency of High Open‐Circuit Voltage Binary Organic Solar Cells by Vertical Morphology Tuning DOI
Guilong Cai, Zeng Chen, Xinxin Xia

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(14)

Published: March 21, 2022

The tuning of vertical morphology is critical and challenging for organic solar cells (OSCs). In this work, a high open-circuit voltage (V

Language: Английский

Citations

72
Over 19.1% efficiency for sequentially spin-coated polymer solar cells by employing ternary strategy DOI
Zhongyuan Liu, Miao Zhang, Lu Zhang

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144711 - 144711

Published: July 13, 2023

Language: Английский

Citations

57
Over 18.8% Efficiency of Layer‐By‐Layer Organic Photovoltaics Enabled by Ameliorating Exciton Utilization in Acceptor Layer DOI

Hongyue Tian,

Wenjing Xu, Zhongyuan Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(16)

Published: Jan. 2, 2024

Abstract The layer‐by‐layer (LbL) organic photovoltaics (OPVs) are constructed with wide‐bandgap donor PM1 and narrow‐bandgap acceptor L8‐BO. exciton utilization near cathode is still challenging considering restricted diffusion distance of excitons inability for transferring energy from L8‐BO to PM1. Herein, incorporation into layer (DIA) strategy employed improve cathode. efficiency LbL OPVs can be improved 18.02% 18.81% by incorporating 10 wt% layer, which closely associated efficient separation originated more adequate donor/acceptor interface faster charge transfer, as evidenced magneto‐photocurrent transient absorption results. in situ test morphological characterization clarify that molecular packing property benefited prolonged aggregation nucleation time assisted DIA strategy, contributing transport inhibited recombination active layers. thickness insensitive also induced indicated PCE retention value (82.2% vs. 74.0%) PM1/L8‐BO:PM1 PM1/L8‐BO when increased ≈180 nm. This work demonstrates the effectiveness improving tolerance OPVs.

Language: Английский

Citations

48
A review of progress and challenges in the research developments on organic solar cells DOI
Walia Binte Tarique, Ashraf Uddin

Materials Science in Semiconductor Processing, Journal Year: 2023, Volume and Issue: 163, P. 107541 - 107541

Published: May 10, 2023

Language: Английский

Citations

42
Recent progress and prospects of dimer and multimer acceptors for efficient and stable polymer solar cells DOI Creative Commons
Jin‐Woo Lee, Jin Su Park,

Hyesu Jeon

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4674 - 4706

Published: Jan. 1, 2024

This review summarizes the recent progress, key design principles and prospects of dimer multimer acceptors for developing polymer solar cells (PSCs) with high efficiency long-term stability.

Language: Английский

Citations

42