4.8 Article

Mechanism study on organic ternary photovoltaics with 18.3% certified efficiency: from molecule to device

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Multidisciplinary

Optimized Active Layer Morphologies via Ternary Copolymerization of Polymer Donors for 17.6 % Efficiency Organic Solar cells with Enhanced Fill Factor

Xia Guo et al.

Summary: In this study, a ternary copolymerization approach was used to develop a new terpolymer donor PM6-Tz20 with improved active layer morphology, leading to enhanced PCE in OSCs. By replacing Al with Ag as the cathode, the champion PCE was further improved, demonstrating the effectiveness of molecular design strategy in optimizing OSC performance.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Physical

Origin of High-Efficiency Near-Infrared Organic Thermally Activated Delayed Fluorescence: The Role of Electronic Polarization

Taiping Hu et al.

Summary: The study revealed that the first excited singlet and triplet states of the two emitters mix charge transfer and local excitation, ensuring sufficient oscillator strength and significant spin-orbit coupling. Due to a stronger charge transfer component, the energy of the first excited state is more stabilized by electronic polarization, leading to a reduced excitation energy and small energy difference between the first excited state and triplet state in the solid phase.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Article Chemistry, Physical

Understanding of the Nearly Linear Tunable Open-Circuit Voltages in Ternary Organic Solar Cells Based on Two Non-fullerene Acceptors

Ziyan Jia et al.

Summary: Researchers developed a series of ternary organic photovoltaic devices, finding that the open-circuit voltage increases linearly with the increase of ITIC third content. They discovered that both the effective charge-transfer states and nonradiative recombination losses in the ternary blends collectively contribute to the tunability of V-OC in NFA-based ternary OSCs.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2021)

Article Chemistry, Multidisciplinary

Achieving 16.68% efficiency ternary as-cast organic solar cells

Ruijie Ma et al.

Summary: This article introduces highly efficient ternary OSCs based on PM6:BTP-ClBr1:BTP-2O-4Cl-C12, with 16.68% power conversion efficiency for as-cast device, relatively close to its annealed counterpart. The improved PCE of ternary device is mainly attributed to improved morphological properties including the more favorable materials miscibility, crystallinity, domain size and vertical phase separation. These results provide understanding and guidance for high-performance as-cast OSCs through the ternary strategy.

SCIENCE CHINA-CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

Layer-by-Layer Processed Ternary Organic Photovoltaics with Efficiency over 18%

Lingling Zhan et al.

Summary: This study proposes and demonstrates a method to optimize the morphology of the active layer in organic photovoltaic devices by combining the layer-by-layer (LbL) procedure and the ternary strategy. By adding an asymmetric electron acceptor to the binary donor:acceptor host, a vertical phase distribution is formed, leading to improved efficiency in OPV devices.

ADVANCED MATERIALS (2021)

Article Chemistry, Multidisciplinary

Simple Non-Fused Electron Acceptors Leading to Efficient Organic Photovoltaics

Tian-Jiao Wen et al.

Summary: Despite recent progress, organic photovoltaics (OPVs) still need to work on balancing efficiency, stability, and cost. This study developed two non-fused electron acceptors which, when blended with a specific polymer, achieved the highest reported efficiency for fully unfused electron acceptors.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Energy & Fuels

Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells

Chao Li et al.

Summary: The molecular design of acceptor and donor molecules has significantly advanced organic photovoltaics. By introducing branched alkyl chains in non-fullerene acceptors, favorable morphology in the active layer can be achieved, leading to a certified device efficiency of 17.9%. This modification can completely alter the molecular packing behavior of non-fullerene acceptors, resulting in improved structural order and charge transport in thin films.

NATURE ENERGY (2021)

Article Chemistry, Physical

Triplet exciton formation for non-radiative voltage loss in high-efficiency nonfullerene organic solar cells

Zeng Chen et al.

Summary: Nonfullerene acceptor organic solar cells with power conversion efficiency up to 18% show the formation of NFA triplet exciton as a main non-radiative recombination and energy loss channel. Side-chain fluorination in high-efficiency NFA OSCs efficiently inhibits charge recombination to NFA triplet excitons, leading to higher V-OC and PCE. This paves the way for OSCs with lower V-OC loss and efficiency exceeding 20%.
Article Chemistry, Multidisciplinary

Organic Solar Cells with 18% Efficiency Enabled by an Alloy Acceptor: A Two-in-One Strategy

Feng Liu et al.

Summary: A high-performance ternary solar cell utilizing a large-bandgap polymer donor and two structurally similar small-bandgap alloy acceptors is reported, achieving a power conversion efficiency of over 18%. By delicately regulating the energy levels of the alloy acceptor through varying the ratio of the two acceptors, more efficient hole transfer and exciton separation are achieved, contributing to reduced energy loss and better overall performance compared to single acceptor systems. Such a two-in-one alloy strategy shows promise in boosting the photovoltaic performance of devices.

ADVANCED MATERIALS (2021)

Article Chemistry, Multidisciplinary

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

Yunhao Cai et al.

Summary: The ternary strategy of incorporating a third component into a binary blend has led to highly efficient organic solar cells with unprecedented power conversion efficiency values.

ADVANCED MATERIALS (2021)

Article Chemistry, Physical

A Thiadiazole-Based Conjugated Polymer with Ultradeep HOMO Level and Strong Electroluminescence Enables 18.6% Efficiency in Organic Solar Cell

Tao Zhang et al.

Summary: This study introduces a new thiadiazole-based conjugated polymer PB2F with a deep HOMO level, achieving high PCE in OSCs when blended with IT-4F. Furthermore, adding PB2F as a third component to PBDB-TF:BTP-eC9 blend leads to outstanding PCE, one of the highest in OSCs.

ADVANCED ENERGY MATERIALS (2021)

Article Chemistry, Physical

Marcus Hole Transfer Governs Charge Generation and Device Operation in Nonfullerene Organic Solar Cells

Guanqing Zhou et al.

Summary: This study investigates the relationship between hole transfer (HT) rate and driving force in a large group of donor/NFA blends, demonstrating that the HT rate increases significantly with increasing driving force. The study also highlights a critical threshold for high HT efficiency when the driving force exceeds 50 meV. Additionally, the correlation between driving force, morphology, and device performance is analyzed, providing insights into manipulating internal electronic processes to optimize device performance.

ACS ENERGY LETTERS (2021)

Article Chemistry, Physical

Narrow electroluminescence linewidths for reduced nonradiative recombination in organic solar cells and near-infrared light-emitting diodes

Quan Liu et al.

Summary: This study focused on polymer-small molecule blends and successfully reduced the nonradiative voltage losses of organic solar cells from typical values around 250 mV to an unprecedented value of 155 mV, while achieving high external quantum efficiency. The findings demonstrate the potential of organic material blends that combine excellent photovoltaic and electroluminescent properties.
Article Chemistry, Physical

Reduced non-radiative charge recombination enables organic photovoltaic cell approaching 19% efficiency

Pengqing Bi et al.

Summary: Introducing HDO-4Cl increased the exciton diffusion length in the acceptor phase, reducing non-radiative charge recombination and improving photon utilization efficiency in PBDB-TF: eC9-based OPV cells. This led to achieving a high-efficiency OPV cell with outstanding power conversion efficiency, demonstrating the effectiveness of regulating exciton behaviors in reducing energy loss.
Review Chemistry, Multidisciplinary

Energy transfer in ternary blend organic solar cells: recent insights and future directions

Aiswarya Abhisek Mohapatra et al.

Summary: Resonance energy transfer (RET) has the potential to enhance the device efficiency of ternary blend organic solar cells (TBSCs), but its role in the enhancement of photocurrent densities is not yet clearly understood. Further research and new strategies are needed to optimize RET-enhanced photocurrent for high efficiency organic solar cells.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Article Chemistry, Multidisciplinary

Asymmetric Electron Acceptors for High-Efficiency and Low-Energy-Loss Organic Photovoltaics

Shuixing Li et al.

ADVANCED MATERIALS (2020)

Article Chemistry, Multidisciplinary

Single-Junction Organic Photovoltaic Cells with Approaching 18% Efficiency

Yong Cui et al.

ADVANCED MATERIALS (2020)

Article Multidisciplinary Sciences

Alloy-like ternary polymer solar cells with over 17.2% efficiency

Qiaoshi An et al.

SCIENCE BULLETIN (2020)

Article Chemistry, Multidisciplinary

Enhanced and Balanced Charge Transport Boosting Ternary Solar Cells Over 17% Efficiency

Danqin Li et al.

ADVANCED MATERIALS (2020)

Article Chemistry, Physical

Near infrared electron acceptors with a photoresponse beyond 1000 nm for highly efficient organic solar cells

Chengliang He et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Chemistry, Multidisciplinary

Over 17% efficiency ternary organic solar cells enabled by two non-fullerene acceptors working in an alloy-like model

Lingling Zhan et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

Article Chemistry, Multidisciplinary

Over 14.5% efficiency and 71.6% fill factor of ternary organic solar cells with 300 nm thick active layers

Jinhua Gao et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

Article Chemistry, Multidisciplinary

Highly Efficient Fullerene-Free Organic Solar Cells Operate at Near Zero Highest Occupied Molecular Orbital Offsets

Shuixing Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

Highly Efficient Semitransparent Solar Cells with Selective Absorption and Tandem Architecture

Lijian Zuo et al.

ADVANCED MATERIALS (2019)

Article Chemistry, Multidisciplinary

Ternary Organic Solar Cells with Efficiency >16.5% Based on Two Compatible Nonfullerene Acceptors

Jiali Song et al.

ADVANCED MATERIALS (2019)

Article Chemistry, Multidisciplinary

Efficient Quaternary Organic Solar Cells with Parallel-Alloy Morphology

Zhaozhao Bi et al.

ADVANCED FUNCTIONAL MATERIALS (2019)

Article Chemistry, Multidisciplinary

All-Solution-Processed Metal-Oxide-Free Flexible Organic Solar Cells with Over 10% Efficiency

Wei Song et al.

ADVANCED MATERIALS (2018)

Article Chemistry, Multidisciplinary

Unique Energy Alignments of a Ternary Material System toward High-Performance Organic Photovoltaics

Pei Cheng et al.

ADVANCED MATERIALS (2018)

Article Chemistry, Physical

Design rules for minimizing voltage losses in high-efficiency organic solar cells

Deping Qian et al.

NATURE MATERIALS (2018)

Article Chemistry, Multidisciplinary

Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells

Wenchao Zhao et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

Article Energy & Fuels

Emergence of highly transparent photovoltaics for distributed applications

Christopher J. Traverse et al.

NATURE ENERGY (2017)

Article Chemistry, Multidisciplinary

Structural Origins for Tunable Open-Circuit Voltage in Ternary-Blend Organic Solar Cells

Petr P. Khlyabich et al.

ADVANCED FUNCTIONAL MATERIALS (2015)

Review Optics

Status and prospects for ternary organic photovoltaics

Luyao Lu et al.

NATURE PHOTONICS (2015)

Article Chemistry, Multidisciplinary

Origin of the Tunable Open-Circuit Voltage in Ternary Blend Bulk Heterojunction Organic Solar Cells

Robert A. Street et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

Article Chemistry, Multidisciplinary

Efficient Ternary Blend Bulk Heterojunction Solar Cells with Tunable Open-Circuit Voltage

Petr P. Khlyabich et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2011)

Article Energy & Fuels

Space-charge-limited currents for organic solar cells optimisation

F Schauer

SOLAR ENERGY MATERIALS AND SOLAR CELLS (2005)