Compromising Charge Generation and Recombination of Organic Photovoltaics with Mixed Diluent Strategy for Certified 19.4% Efficiency DOI
Tianyi Chen, Shuixing Li,

Yaokai Li

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: March 3, 2023

The ternary blend is demonstrated as an effective strategy to promote the device performance of organic photovoltaics (OPVs) due dilution effect. While compromise between charge generation and recombination remains a challenge. Here, mixed diluent for further improving efficiency OPV proposed. Specifically, high-performance system with polymer donor, i.e., PM6, nonfullerene acceptor (NFA), BTP-eC9, diluted by diluents, which involve high bandgap NFA BTP-S17 low BTP-S16 (similar that BTP-eC9). better miscibility BTP-eC9 can dramatically enhance open-circuit voltage (VOC ), while maximizes or short-circuit current density (JSC ). interplay BTP-17 enables recombination, thus leading 19.76% (certified 19.41%), best among single-junction OPVs. Further analysis on carrier dynamics validates efficacy diluents balancing be attributed more diverse energetic landscapes improved morphology. Therefore, this work provides commercialization.

Language: Английский

Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells DOI
Chao Li, Jiadong Zhou,

Jiali Song

et al.

Nature Energy, Journal Year: 2021, Volume and Issue: 6(6), P. 605 - 613

Published: May 10, 2021

Language: Английский

Citations

1769
Photovoltaic solar cell technologies: analysing the state of the art DOI
Pabitra K. Nayak, Suhas Mahesh, Henry J. Snaith

et al.

Nature Reviews Materials, Journal Year: 2019, Volume and Issue: 4(4), P. 269 - 285

Published: March 28, 2019

Language: Английский

Citations

961
High-efficiency organic solar cells with low non-radiative recombination loss and low energetic disorder DOI Open Access
Sha Liu, Jun Yuan,

Wanyuan Deng

et al.

Nature Photonics, Journal Year: 2020, Volume and Issue: 14(5), P. 300 - 305

Published: Jan. 20, 2020

Language: Английский

Citations

895
New Phase for Organic Solar Cell Research: Emergence of Y-Series Electron Acceptors and Their Perspectives DOI
Shuixing Li, Chang‐Zhi Li, Minmin Shi

et al.

ACS Energy Letters, Journal Year: 2020, Volume and Issue: 5(5), P. 1554 - 1567

Published: April 7, 2020

With the recent emergence of a new class high-performance nonfullerene acceptors (NFAs), organic solar cells (OSCs) have entered phase research featuring high power conversion efficiencies (PCEs). In this Perspective, we summarize progress made from Y-series NFAs and matched polymer donors analyze molecular design strategies for boosting device performance. We also perform PCE prediction OSCs propose requirements NFAs, aiming at 20%, which is comparable to those Si perovskite-based counterparts. Finally, assess three factors efficiency, stability, cost outline challenges facing future development directions OSCs. This work expected provide valuable suggestions with comprehensive view advance practical application

Language: Английский

Citations

556
Organic photovoltaic cell with 17% efficiency and superior processability DOI Creative Commons
Yong Cui, Huifeng Yao, Ling Hong

et al.

National Science Review, Journal Year: 2019, Volume and Issue: 7(7), P. 1239 - 1246

Published: Dec. 5, 2019

Abstract The development of organic photoactive materials, especially the newly emerging non-fullerene electron acceptors (NFAs), has enabled rapid progress in photovoltaic (OPV) cells recent years. Although power conversion efficiencies (PCEs) top-performance OPV have surpassed 16%, devices are usually fabricated via a spin-coating method and not suitable for large-area production. Here, we demonstrate that fine-modification flexible side chains NFAs can yield 17% PCE cells. More crucially, as optimal NFA solubility thus desirable morphology, high spin-coated be maintained when using scalable blade-coating processing technology. Our results suggest optimization chemical structures materials improve device performance. This great significance larger-area production technologies provide important scientific insights commercialization

Language: Английский

Citations

514
Wide-gap non-fullerene acceptor enabling high-performance organic photovoltaic cells for indoor applications DOI
Yong Cui, Yuming Wang, Jonas Bergqvist

et al.

Nature Energy, Journal Year: 2019, Volume and Issue: 4(9), P. 768 - 775

Published: Aug. 19, 2019

Language: Английский

Citations

479
Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics DOI Creative Commons
Jun Yuan, Tianyi Huang, Pei Cheng

et al.

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Feb. 4, 2019

Abstract Despite significant development recently, improving the power conversion efficiency of organic photovoltaics (OPVs) is still an ongoing challenge to overcome. One prerequisites achieving this goal enable efficient charge separation and small voltage losses at same time. In work, a facile synthetic strategy reported, where optoelectronic properties are delicately tuned by introduction electron-deficient-core-based fused structure into non-fullerene acceptors. Both devices exhibited low loss 0.57 V high short-circuit current density 22.0 mA cm −2 , resulting in efficiencies over 13.4%. These unconventional acceptors with near-infrared absorption lead non-radiative recombination photovoltaics, contributing certified 12.6%.

Language: Английский

Citations

433
Monolithic Perovskite Tandem Solar Cells: A Review of the Present Status and Advanced Characterization Methods Toward 30% Efficiency DOI Creative Commons
Marko Jošt, Lukas Kegelmann, Lars Korte

et al.

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 10(26)

Published: May 4, 2020

Abstract Tandem solar cells are the next step in photovoltaic (PV) evolution due to their higher power conversion efficiency (PCE) potential than currently dominating, but inherently limited, single‐junction cells. With emergence of metal halide perovskite absorber materials, fabrication highly efficient tandem cells, at a reasonable cost, can significantly impact future PV landscape. The perovskite‐based have already shown that they convert light more efficiently standalone sub‐cells. However, reach PCEs over 30%, several challenges be overcome and understanding this fascinating technology has broadened. In review, main scientific engineering field presented, alongside discussion current status three technologies: perovskite/silicon, perovskite/CIGS, perovskite/perovskite A summary advanced structural, electrical, optical, radiative, electronic characterization methods as well simulations being utilized for is presented. findings summarized strength techniques gain deeper knowledge further performance improvement assessed. Finally, PCE different experimental theoretical limits compared with an aim shed on path towards overcoming 30% threshold all herein reviewed technologies.

Language: Английский

Citations

429
Manipulating the D:A interfacial energetics and intermolecular packing for 19.2% efficiency organic photovoltaics DOI

Chengliang He,

Youwen Pan,

Yanni Ouyang

et al.

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(6), P. 2537 - 2544

Published: Jan. 1, 2022

A novel electron acceptor, BTP-H2, demonstrates a high efficiency of 18.5% with V oc 0.932 V. It also enables the ternary device to yield an 19.2%, ranking highest among single-junction organic photovoltaics.

Language: Английский

Citations

411
A Well‐Mixed Phase Formed by Two Compatible Non‐Fullerene Acceptors Enables Ternary Organic Solar Cells with Efficiency over 18.6% DOI

Yunhao Cai,

Yun Li, Rui Wang

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(33)

Published: July 10, 2021

Abstract The ternary strategy, introducing a third component into binary blend, opens simple and promising avenue to improve the power conversion efficiency (PCE) of organic solar cells (OSCs). judicious selection an appropriate component, without sacrificing photocurrent voltage output OSC, is significant importance in devices. Herein, highly efficient OSCs fabricated using approach are demonstrated, wherein novel non‐fullerene acceptor L8‐BO‐F designed incorporated PM6:BTP‐eC9 blend. three components show complementary absorption spectra cascade energy alignment. BTP‐eC9 found form homogeneous mixed phase, which improves molecular packing both donor materials, optimizes blend morphology. Moreover, addition suppresses non‐radiative recombination, thus leading reduced loss. Consequently, concurrent increases open‐circuit voltage, short‐circuit current, fill factor realized, resulting unprecedented PCE 18.66% (certified value 18.2%), represents highest values reported for single‐junction tandem so far.

Language: Английский

Citations

410