Search results for: Wenchao Zhao

Items from 1 to 20 out of 62 results

article

Intrinsically Stretchable Organic Solar Cells and Sensors Enabled by Extensible Composite Electrodes

Dexia Han, Kangkang Zhou, Xin Li, Pengfei Lv, more

Advanced Functional Materials > 34 > 44 > n/a - n/a

Stretchable electrodes are critical to the development of advanced technologies such as human–machine interaction, flexible sensing, and wearable power supply, making them of significant research value. However, the current preparation methods for high‐performance stretchable electrodes are complex and inefficient, posing challenges for their large‐scale application in the realm of flexible wearables...

article

Unraveling the Solution Aggregation Structures and Processing Resiliency of High‐Efficiency Organic Photovoltaic Blends

Mengyuan Gao, Chunlong Sun, Yiwen Li, Na Li, more

Advanced Materials > 36 > 39 > n/a - n/a

The solution aggregation structure of conjugated polymers is crucial to the morphology and resultant optoelectronic properties of organic electronics and is of considerable interest in the field. Precise characterizations of the solution aggregation structures of organic photovoltaic (OPV) blends and their temperature‐dependent variations remain challenging. In this work, the temperature‐dependent...

article

Volatile Solid‐Assisted Molecular Assembly Enables Eco‐Friendly Processed Organic Photovoltaic Cells with High Efficiency and Photostability

Lei Xu, Yaomeng Xiong, Sunsun Li, Wenchao Zhao, more

Advanced Functional Materials > 34 > 17 > n/a - n/a

Achieving environmentally friendly solvent‐processed high‐performance organic photovoltaic cells (OPVs) is a crucial step toward their commercialization. Currently, OPVs with competitive efficiencies rely heavily on harmful halogenated solvent additives. Herein, the green and low‐cost 9‐fluorenone (9‐FL) is employed as a solid additive. By using the o‐xylene/9‐FL solvent system, the PM6:BTP‐eC9‐based...

article

A Dual‐Polythiophene Blending Strategy to Reduce the Efficiency‐Stability‐Cost Gap of Solar Cells

Qingchun Qi, Jingjing Wang, Mengyuan Gao, Huizhen Ke, more

Small > 20 > 12 > n/a - n/a

Benefiting from the photovoltaic material innovation and delicate device optimization, high‐efficiency solar cells employing polymeric materials are thriving. Reducing the gap of cost, efficiency, and stability is the critical challenge faced by the emerging solar cells such as organics, quantum dots and perovskites. Poly(3‐alkylthiophene) demonstrates great potential in organic solar cells and quantum...

article

Achieving Record‐High Stretchability and Mechanical Stability in Organic Photovoltaic Blends with a Dilute‐absorber Strategy

Saimeng Li, Mengyuan Gao, Kangkang Zhou, Xin Li, more

Advanced Materials > 36 > 8 > n/a - n/a

Organic solar cells (OSCs) have potential for applications in wearable electronics. Except for high power conversion efficiency (PCE), excellent tensile properties and mechanical stability are required for achieving high‐performance wearable OSCs, while the present metrics barely meet the stretchable requirements. Herein, this work proposes a facile and low‐cost strategy for constructing intrinsically...

article

Constructing High‐Performance Solar Cells and Photodetectors with a Doping‐Free Polythiophene Hole Transport Material

Junjiang Wu, Yuping Gao, Zhihua Zhou, Yahui Du, more

Advanced Functional Materials > 34 > 1 > n/a - n/a

The emerging solution‐based solar cells and photodetectors have gained worldwide research interest over the past decades. Hole transport materials (HTMs) have greatly advanced the progress of these solution‐based electronics. Nevertheless, developing low‐cost and efficient HTMs is far from satisfactory. In this contribution, poly(3‐pentylthiophene) (P3PT) is introduced as a facile, low‐cost, and versatile...

article

Powering the Future: A Critical Review of Research Progress in Enhancing Stability of High‐Efficiency Organic Solar Cells

Maoheng Wu, Bing Ma, Sunsun Li, Jingquan Han, more

Advanced Functional Materials > 33 > 50 > n/a - n/a

Organic solar cells (OSCs) are a promising photovoltaic technology that employs organic semiconductor material as the photoactive layer, which has the unique advantages of light weight, large‐area flexible fabrication, low‐cost, and semitransparent. In recent years, the performance of OSCs has been significantly improved, and the highest power conversion efficiency has exceeded 19%. Despite the tremendous...

article

The SlWRKY57‐SlVQ21/SlVQ16 module regulates salt stress in tomato

Jilin Ma, Chonghua Li, Lulu Sun, Xuechun Ma, more

Journal of Integrative Plant Biology > 65 > 11 > 2437 - 2455

Salt stress is a major abiotic stress which severely hinders crop production. However, the regulatory network controlling tomato resistance to salt remains unclear. Here, we found that the tomato WRKY transcription factor WRKY57 acted as a negative regulator in salt stress response by directly attenuating the transcription of salt‐responsive genes (SlRD29B and SlDREB2) and an ion homeostasis gene...

article

On‐Surface Synthesis of Polyphenylene Wires Comprising Rigid Aliphatic Bicyclo[1.1.1]Pentane Isolator Units

Biao Yang, Kaifeng Niu, Nan Cao, Nitika Grover, more

Angewandte Chemie International Edition > 62 > 19 > n/a - n/a

Bicyclo[1.1.1]pentane (BCP) motifs are of growing importance to the pharmaceutical industry as sp³‐rich bioisosteres of benzene rings and as molecular building blocks in materials science. Herein we explore the behavior of 1,3‐disubstituted BCP moieties on metal surfaces by combining low‐temperature scanning tunneling microscopy / non‐contact atomic force microscopy studies with density functional...

article

On‐Surface Synthesis of Polyphenylene Wires Comprising Rigid Aliphatic Bicyclo[1.1.1]Pentane Isolator Units

Biao Yang, Kaifeng Niu, Nan Cao, Nitika Grover, more

Angewandte Chemie > 135 > 19 > n/a - n/a

article

Tomato defence against Meloidogyne incognita by jasmonic acid‐mediated fine‐tuning of kaempferol homeostasis

Wenchao Zhao, Jingjing Liang, Huang Huang, Jinshan Yang, more

New Phytologist > 238 > 4 > 1651 - 1670

Jasmonic acid (JA) is involved in the modulation of defence and growth activities in plants. The best‐characterized growth‐defence trade‐offs stem from antagonistic crosstalk among hormones. In this study, we first confirmed that JA negatively regulates root‐knot nematode (RKN) susceptibility via the root exudates (REs) of tomato plants. Omics and toxicological analyses implied that kaempferol,...

article

Real‐Time Probing and Unraveling the Morphology Formation of Blade‐Coated Ternary Nonfullerene Organic Photovoltaics with In Situ X‐Ray Scattering

Zhongxiang Peng, Yaowen Zhang, Xiaokang Sun, Wenchao Zhao, more

Advanced Functional Materials > 33 > 14 > n/a - n/a

Characterizing the bulk heterojunction (BHJ) morphology of the active layer is essential for optimizing blade‐coated organic solar cells (OSCs). Here, the morphology evolution of a highly efficient ternary polymer:nonfullerene blend PM6:N3:N2200 under different blade coating conditions is probed in real‐time by in situ synchrotron X‐ray scattering and in situ ultraviolet‐visible (UV‐vis) spectroscopy...

article

Jasmonic acid enhances osmotic stress responses by MYC2‐mediated inhibition of protein phosphatase 2C1 and response regulators 26 transcription factor in tomato

Wenchao Zhao, Huang Huang, Jingjing Wang, Xiaoyun Wang, more

The Plant Journal > 113 > 3 > 546 - 561

The jasmonic acid (JA) signaling pathway is involved in the plant response to drought stress. JA and other hormones synergistically regulate the drought response in plants. However, the molecular mechanism underlying this synergism remains poorly defined. In the present study, transcriptome analyses of guard cells and quantitative PCR experiments revealed that MYC2 negatively regulated the negative...

article

Unraveling the Stretch‐Induced Microstructural Evolution and Morphology–Stretchability Relationships of High‐Performance Ternary Organic Photovoltaic Blends

Zhongxiang Peng, Kaihu Xian, Junwei Liu, Yaowen Zhang, more

Advanced Materials > 35 > 3 > n/a - n/a

The stretchability and stretch‐induced structural evolution of organic solar cells (OSCs) are pivotal for their collapsible, portable, and wearable applications, and they are mainly affected by the complex morphology of active layers. Herein, a highly ductile conjugated polymer P(NDI2OD‐T2) is incorporated into the active layers of high‐efficiency OSCs based on nonfullerene small molecule acceptors...

article

Simultaneous Optimization of Efficiency, Stretchability, and Stability in All‐Polymer Solar Cells via Aggregation Control^†

Kaihu Xian, Kangkang Zhou, Mingfei Li, Junwei Liu, more

Chinese Journal of Chemistry > 41 > 2 > 159 - 166

With the emergence of Y‐series small molecule acceptors, polymerizing the small molecule acceptors with aromatic linker units has attracted significant research attention, which has greatly advanced the photovoltaic performance of all‐polymer solar cells. Despite the rapid increase in efficiency, the unique characteristics (e. g., mechanical stretchability and flexibility) of all‐polymer systems were...

article

The Key Role of Subtle Substitution for a High‐Performance Ester‐Modified Oligothiophene‐Based Polymer Used in Photovoltaic Cells

Sunsun Li, Yuan Ding, Lei Xu, Wenchao Zhao, more

Chinese Journal of Chemistry > 40 > 24 > 2867 - 2874

In organic solar cells (OSCs), developing high‐performing easily synthesized photoactive materials is essential for pursuing cost‐ effective balance. Herein, we have designed and synthesized a pair of wide‐band‐gap polymers (PBDE4T‐0F and PBDE4T‐2F), using the low synthesis cost dicarboxylic ester‐substituted quaterthiophene as the building block. Despite the minor change of molecular structure for...

article

13.2: Invited Paper: Synergistic photothermal strategy for low‐temperature cross‐linking of hole transport materials for red QLEDs

Yuan-Qiu-Qiang Yi, Wenchao Zhao, Liming Xie, Yang Liu, more

SID Symposium Digest of Technical Papers > 52 > S2 > 184 - 186

By applying synergistic photothermal strategy, our previously reported DV‐FLCZ exhibited a low cross‐linking temperature with a drop of 75 °C, while still maintaining high‐quality film morphology with smooth surface and desirable surface energy. The red colloidal quantum dots light emitting diodes (QLEDs) based on photothermal induced cross‐linked hole transport layer, achieved almost the same device...

article

A Novel Strategy for Scalable High‐Efficiency Planar Perovskite Solar Cells with New Precursors and Cation Displacement Approach

Fengzhu Li, Yu Zhang, Ke‐Jian Jiang, Chaoshen Zhang, more

Advanced Materials > 30 > 44 > n/a - n/a

Methylammonium iodide (MAI) and lead iodide (PbI₂) have been extensively employed as precursors for solution‐processed MAPbI₃ perovskite solar cells (PSCs). However, the MAPbI₃ perovskite films directly deposited from the precursor solutions, usually suffer from poor surface coverage due to uncontrolled nucleation and crystal growth of the perovskite during the film formation, resulting in low photovoltaic...

article

Association between LCE gene polymorphisms and psoriasis vulgaris among Mongolians from Inner Mongolia

Li Sun, Yuting Cao, Nagonbilig He, Jianwen Han, more

Archives of Dermatological Research > 2018 > 310 > 4 > 321-327

The late cornified envelope (LCE) gene cluster is located on chromosome 1q21, including LCE1–LCE6. Several single nucleotide polymorphisms (SNPs) in the LCE cluster were associated with susceptibility to psoriasis in Chinese population. However, there is no report on the relationship in ethnic minority areas in China. This study aimed to investigate the association between the gene polymorphisms of...

article

Environmentally Friendly Solvent‐Processed Organic Solar Cells that are Highly Efficient and Adaptable for the Blade‐Coating Method

Wenchao Zhao, Shaoqing Zhang, Yun Zhang, Sunsun Li, more

Advanced Materials > 30 > 4 > n/a - n/a

The power conversion efficiencies (PCEs) of state‐of‐the‐art organic solar cells (OSCs) have increased to over 13%. However, the most commonly used solvents for making the solutions of photoactive materials and the coating methods used in laboratories are not adaptable for future practical production. Therefore, taking a solution‐coating method with environmentally friendly processing solvents into...

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INFONA - science communication portal

Search results for: Wenchao Zhao

Intrinsically Stretchable Organic Solar Cells and Sensors Enabled by Extensible Composite Electrodes

Unraveling the Solution Aggregation Structures and Processing Resiliency of High‐Efficiency Organic Photovoltaic Blends

Volatile Solid‐Assisted Molecular Assembly Enables Eco‐Friendly Processed Organic Photovoltaic Cells with High Efficiency and Photostability

A Dual‐Polythiophene Blending Strategy to Reduce the Efficiency‐Stability‐Cost Gap of Solar Cells

Achieving Record‐High Stretchability and Mechanical Stability in Organic Photovoltaic Blends with a Dilute‐absorber Strategy

Constructing High‐Performance Solar Cells and Photodetectors with a Doping‐Free Polythiophene Hole Transport Material

Powering the Future: A Critical Review of Research Progress in Enhancing Stability of High‐Efficiency Organic Solar Cells

The SlWRKY57‐SlVQ21/SlVQ16 module regulates salt stress in tomato

On‐Surface Synthesis of Polyphenylene Wires Comprising Rigid Aliphatic Bicyclo[1.1.1]Pentane Isolator Units

On‐Surface Synthesis of Polyphenylene Wires Comprising Rigid Aliphatic Bicyclo[1.1.1]Pentane Isolator Units

Tomato defence against Meloidogyne incognita by jasmonic acid‐mediated fine‐tuning of kaempferol homeostasis

Real‐Time Probing and Unraveling the Morphology Formation of Blade‐Coated Ternary Nonfullerene Organic Photovoltaics with In Situ X‐Ray Scattering

Jasmonic acid enhances osmotic stress responses by MYC2‐mediated inhibition of protein phosphatase 2C1 and response regulators 26 transcription factor in tomato

Unraveling the Stretch‐Induced Microstructural Evolution and Morphology–Stretchability Relationships of High‐Performance Ternary Organic Photovoltaic Blends

Simultaneous Optimization of Efficiency, Stretchability, and Stability in All‐Polymer Solar Cells via Aggregation Control^†

The Key Role of Subtle Substitution for a High‐Performance Ester‐Modified Oligothiophene‐Based Polymer Used in Photovoltaic Cells

13.2: Invited Paper: Synergistic photothermal strategy for low‐temperature cross‐linking of hole transport materials for red QLEDs

A Novel Strategy for Scalable High‐Efficiency Planar Perovskite Solar Cells with New Precursors and Cation Displacement Approach

Association between LCE gene polymorphisms and psoriasis vulgaris among Mongolians from Inner Mongolia

Environmentally Friendly Solvent‐Processed Organic Solar Cells that are Highly Efficient and Adaptable for the Blade‐Coating Method

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