Review
Chemistry, Applied
Jian Yang, Jianfei Hu, Wenhao Zhang, Hongwei Han, Yonghua Chen, Yue Hu
Summary: Metal halide perovskite solar cells (PSCs) have great potential to be the next-generation photovoltaic devices due to their simple fabrication techniques, low cost, and high power conversion efficiency. However, improving the stability of these devices remains a critical challenge. Ionic liquids (ILs) have been found to play multiple roles in achieving efficient and stable PSCs. ILs, consisting of large organic cations and organic or inorganic anions, possess weak electrostatic attraction and high ionic conductivity, making them non-volatile, non-flammable, and thermally and electrochemically stable. The roles of ILs in PSCs vary with their composition, and this article summarizes the effects of anions and cations in various aspects of PSCs.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Applied
Deyu Gao, Liqun Yang, Xiaohui Ma, Xueni Shang, Chen Wang, Mengjia Li, Xinmeng Zhuang, Boxue Zhang, Hongwei Song, Jiangzhao Chen, Cong Chen
Summary: Interfacial defects and energy barrier contribute to interfacial non-radiative recombination losses. A multifunctional buried interface modulation strategy using 4-fluoro-phenylammonium tetrafluoroborate (FBABF(4)) was developed to manage the interface between the electron transport layer and the perovskite layer. The approach successfully ameliorated the interfacial contact through simultaneous fluorination of the anion and cation in the ionic liquid molecule.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Wenjing Yu, Xiaoran Sun, Mu Xiao, Tian Hou, Xu Liu, Bolin Zheng, Hua Yu, Meng Zhang, Yuelong Huang, Xiaojing Hao
Summary: Lead halide perovskite solar cells have rapidly developed in the past decade, with interface engineering playing a crucial role in optimizing device performance and long-term stability through defect passivation, inhibiting ion migration, optimizing energy band alignment, and morphological control.
Article
Chemistry, Multidisciplinary
Fei Wang, Jing Ma, Dawei Duan, Xiao Liang, Kang Zhou, Yonggui Sun, Taomiao Wang, Guo Yang, Guoxian Pei, Haoran Lin, Yumeng Shi, Quanyao Zhu, Gang Li, Hanlin Hu
Summary: In this study, ionic liquids (ILs) were used as versatile tools for interfacial engineering in perovskite photovoltaics. By manipulating the chemical structures of ILs, the properties of perovskite/SnO2 interfaces were modified to enhance the photovoltaic capabilities of perovskite devices. The relationship between IL structures and device performance was analyzed, establishing a holistic link between the two.
Article
Engineering, Environmental
Ji Hyeon Lee, Benjamin Nketia-Yawson, Jae-Joon Lee, Jea Woong Jo
Summary: In this study, an ionic liquid surface modifier was used to passivate the perovskite layer in order to achieve efficient harvesting of light energy in perovskite photovoltaics. The results showed that the ionic liquid effectively reduced surface traps and improved the efficiency of perovskite photovoltaics by approximately 15%. However, using an excess amount of the ionic liquid resulted in the formation of perovskite-ionic liquid complexes and inefficient charge transport and extraction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Feng Lv, Yanqing Yao, Cunyun Xu, Dingyu Liu, Liping Liao, Gang Wang, Guangdong Zhou, Xusheng Zhao, Debei Liu, Xiude Yang, Qunliang Song
Summary: This paper investigates the band bending at the ITO-perovskite interface for highly efficient perovskite solar cells. The results show that band bending can effectively prevent recombination of holes with electrons without the need for electron or hole transport layers.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Xin Zuo, Bohyung Kim, Baibai Liu, Dongmei He, Le Bai, Wenqi Wang, Cunyun Xu, Qunliang Song, Chunyang Jia, Zhigang Zang, Donghwa Lee, Xiong Li, Jiangzhao Chen
Summary: A simple and effective buried interface passivation strategy based on cation engineering was developed for perovskite solar cells. The modifiers CDSC and DPAH can passivate defects on the surface of perovskite and SnO2 films, and reduce interfacial energy barrier by improving energy band alignment. CDSC demonstrated superior defect passivation and energy band modulation compared to DPAH.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Jiangning Li, Xianghuan Meng, Zhiheng Wu, Yanyan Duan, Ruxin Guo, Weidong Xiao, Yongshang Zhang, Yukun Li, Yonglong Shen, Wei Zhang, Guosheng Shao
Summary: By introducing ionic liquids, the power conversion efficiency and long-term stability of Cs2AgBiBr6-based perovskite solar cells have been improved by reducing bromide ion migration and film defects, and enhancing energy level matching.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Bingyu Li, Zhipeng Li, Xiafei Jiang, Zichen Wang, Yi Rao, Chujun Zhang, Mingzhe Zhu, Linbao Zhang, Lirong Wen, Shu Kong So, Yuanyuan Zhou, Shuping Pang, Zhongmin Zhou
Summary: Charge recombination at grain-boundary interfaces and charge extraction loss at perovskite-carrier transport layer interfaces are the two main causes for the performance deficiency in perovskite solar cells. A new ionic liquid compound, DPPIQ(+)PF(6), can react with perovskites at these two interfaces, resulting in reduced defect density and improved energy level alignment. The best-performing DPPIQ(+)PF(6) incorporated device shows a high power conversion efficiency of 23.41% and demonstrates excellent stability under continuous one-sun-intensity illumination.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xinmeng Zhuang, Xinfu Chen, Lin Xu, Shuainan Liu, Yanjie Wu, Zhichong Shi, Qingqing Zhou, Bo Li, Haixia Yan, Peter Reiss, Hongwei Song
Summary: The utilization of ionic liquids (ILs) containing different halide anions is an effective strategy to improve the stability and performance of metal halide perovskite solar cells. In this study, ILs with a 1-ethyl-3-methylimidazolium (EMIM+) cation and different halide anions (X = Cl, Br, and I) were employed to modify the inverted PSCs, resulting in enhanced power conversion efficiency and excellent long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Yifan Lv, Kaiyu Wang, Ai Lan, Lingfeng Chao, Changshun Chen, Jinpei Wang, Qing Yao, Jianxin Chen, Tengfei Pan, Yajing Li, Hui Zhang, Yingdong Xia, Yonghua Chen
Summary: The use of MAAc ionic liquid and Biuret as the solvent and additive of ink can independently influence the crystallization process of perovskite, and this ink synergistic engineering can accurately regulate the crystallization process and improve the quality of bar-coated perovskite films. We achieved the highest efficiency of 20.62% on a small-area device and 16.51% on a micro-module with reduced process temperatures. This method is expected to promote the industrialization of perovskite solar cells and provide guidance for the development of coating and printing techniques for perovskite materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Chaoqun Zhang, Xiaodong Ren, Xilai He, Yunxia Zhang, Yucheng Liu, Jiangshan Feng, Fei Gao, Ningyi Yuan, Jianning Ding, Shengzhong (Frank) Liu
Summary: Interface engineering with an ionic compound TP6 can effectively reduce surface defects, enhance moisture stability, and increase built-in potential to improve efficiency and stability of perovskite solar cells. The power conversion efficiency of PSCs is significantly improved with TP6 treatment, showing better stability in long-term storage compared to control devices.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhongzhong Jia, Song Yin, Xudong Liu, Mingxuan Liu, Hua Zhong, Shi Chen, Luozheng Zhang, Shaopeng Yang, Weiguang Kong
Summary: The p-i heterojunction underneath the perovskite layer is crucial for the efficiency and stability of inverted perovskite solar cells. This study discovered that poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA) has poor contact with perovskite due to severe chain entanglement. By treating the PTAA layer with PBDB-T-SF diluted solution, the voids in PTAA can be filled with PBDB-T-SF, resulting in improved work function of the substrate and enhanced coherence between perovskite and the substrate.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ming Peng, Weideren Dai, Liangyou Lin, Bichen Xiao, Songyang Guo, Mingqing Fang, Hairen Wang, Yanzhuo Gou, Muhammad Sultan Irshad, Junbo Gong, Jinhua Li
Summary: The study successfully improved the electron conductivity and energy level of the electron transport layer using ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) as an interface modifier, reducing electron trap density and increasing device power conversion efficiency.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Energy & Fuels
Junjie Lou, Jiangshan Feng, Shengzhong (Frank) Liu, Yong Qin
Summary: This article introduces the characteristics and advantages of thin-film perovskite solar cells (PSCs), discusses the challenges and solutions for making high-performance semitransparent PSCs, and outlines the outlook for future ST-PSCs research.
Review
Materials Science, Multidisciplinary
Junmin Xia, Chao Liang, Hao Gu, Shiliang Mei, Shengwen Li, Nan Zhang, Shi Chen, Yongqing Cai, Guichuan Xing
Summary: Metal halide perovskites are popular for efficient photovoltaic devices, but defects from the preparation process hinder performance improvement. Surface passivation is a practical approach to suppress these defects, and this review provides a comprehensive summary of different passivation methods and discusses future research trends.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Dan Chan, Yunfei Liu, You Fan, Huibo Wang, Shi Chen, Tianwei Hao, Heng Li, Zhengshuai Bai, Huaiyu Shao, Guichuan Xing, Yanyan Zhang, Yuxin Tang
Summary: Separators or electrolyte membranes are crucial for ion transport in rechargeable batteries, and the increasing applications of battery systems for diverse working environments pose new challenges. The design of advanced battery membranes with high thermal stability, mechanical strength, and voltage tolerance is highly desirable. Janus separators or electrolyte membranes, with distinct chemical/physical properties, offer promising solutions through rational design to overcome these challenges. This review provides an overview of the current challenges, state-of-the-art developments, and future potential directions of Janus membranes for advanced battery applications, aiming to guide the development of functional separators or electrolyte membranes.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jinghao Yang, Yingying Zheng, Shengjie Wang, Bin Liu, Huaqiang Gong, Ningning Yu, Yahui Zhang, Mengyuan Li, Lili Sun, Wenyu Chen, Heyuan Liu, Yunhao Wang, Lubing Bai, Jinyi Lin, Wei Huang
Summary: This study proposes an alternating copolymerization strategy to control the secondary conformational behavior of light-emitting polymers and achieve deep-blue emission with narrowband and stable color purity. By optimizing the hierarchical structure, deep-blue polymer light-emitting diodes (PLEDs) with stable electroluminescence, high brightness, and high current efficiency are successfully fabricated on a large scale. This strategy improves the performance and stability of deep-blue PLEDs.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chaoyi Ban, Zicheng Zhang, Cheng Song, Heshan Zhang, Xu Luo, Xiaojing Wang, Juqing Liu, Zhengdong Liu, Wei Huang
Summary: This study discovered a novel heterostructure with ultra-stable and broadband photonic synaptic behavior, as well as the ability to mimic neural morphology and perform visual perception and recognition. These heterostructures maintain stability in harsh conditions and have a wide photoresponse range and wet synthesis capabilities.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Multidisciplinary
Zepeng Wang, Xiaojie Cheng, Yingjie Xie, Shulin Liu, Mengjiao Dong, Jianfeng Zhao, Fushun Liang, Zhongfu An, Wei Huang
Summary: This review summarizes recent work on organic phosphorescence of heterocycles with boron, sulfur, and phosphorus heteroatoms and highlights the significance of the guidelines for constructing efficient phosphorescence molecules.
Article
Optics
Xiang An, Chuanxin Wei, Lubing Bai, Jun Zhou, Le Wang, Yamin Han, Lili Sun, Jinyi Lin, Heyuan Liu, Jiewei Li, Man Xu, Haifeng Ling, Linghai Xie, Wei Huang
Summary: Doping and blending strategies are crucial for controlling excited states and energy levels in conjugated molecular systems. However, effective models and platforms to explore the effects of trapped doped centers on heterogeneous structures and photophysical processes are rarely proposed. In this study, a supramolecular N-B coordination was designed to investigate the impact of molecular doping on film energy levels and photoexcitation dynamics. The results showed that the coordination bond increased N atoms' binding energy and tuned the band-gap, resulting in a new fluorescent emission center with longer excitation and emission wavelengths. The blending films exhibited inconsistent fluorescent behaviors compared to solution due to intermolecular Forster resonance energy transfer. Additionally, the charge transfer state and changed dielectric constant caused a red-shift in the photoluminescence spectra with increased dopant ratio, enabling wide-tunable fluorescent color. The excited state behaviors of the compounds in blending system were further studied using transient absorption spectroscopy. It was found that supramolecular coordination blending effectively improved the photoluminescence quantum yield and conductivity of the films. This exploration in coordination mechanisms provides insights into doped semiconductors and facilitates the development of high-efficient fluorescent systems.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Physical
Simiao Yang, Wei Hui, Lingfeng Chao, Zhen Yang, Qi Chen, Lin Song, Yue Wang, Yonghua Chen, Deli Li
Summary: The equivalent circuit model is an essential tool for studying perovskite solar cells. This work proposes a new scheme to accurately estimate the equivalent circuit parameters of high-performance solar cells using only their current-voltage curves. The proposed method successfully relates the photovoltaic parameters to the structural and optoelectronic changes of the solar cells.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Man Xu, Chuanxin Wei, Shengjie Wang, Jingrui Zhang, Jingyao Ma, Ning Sun, Lili Sun, Yamin Han, Lubing Bai, Jinyi Lin, Jiawei Qiao, Xiatao Hao, Wei Xue, Linghai Xie, Wei Huang
Summary: Large-area narrow-band deep-blue polymer light-emitting diodes (PLEDs) with efficient emission and excellent printing capability were fabricated via brush coating, resulting in uniform deep-blue emission and higher external quantum efficiency compared to spin-coated films.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Yuewen Wei, Xuewen Shi, Zhuoqi Yao, Jiacai Zhi, Lixuan Hu, Ren Yan, Chuanqian Shi, Hai-Dong Yu, Wei Huang
Summary: This study presents a fully paper-integrated piezoresistive sensing system that is flexible, waterproof, air-permeable, and biocompatible. The system consists of hydrophobic paper as the substrate, conductive paper with a special surface structure as the sensing layer, and silver paste films as the interconnects. The designed sensing layer increases the contact area and enhances the pressure sensitivity. The system can be worn on human skin to monitor physiological signals in various environments, providing a reliable, economical, and eco-friendly solution to wearable technologies.
NPJ FLEXIBLE ELECTRONICS
(2023)
Review
Chemistry, Multidisciplinary
Fang Tang, Aixiang Ding, Yao Xu, Yingsong Ye, Lin Li, Rongjun Xie, Wei Huang
Summary: The integration of gene therapy and photothermal therapy offers a promising approach for cancer treatment, providing rapid response and improved effectiveness. Recent advancements in this field have resulted in notable achievements and progress towards potential clinical applications. However, challenges and future developments still need to be addressed. This comprehensive review explores the synergistic mechanisms, material systems, imaging-guided therapy, and anticancer applications of gene therapy and photothermal therapy integration, aiming to inspire further research in this promising area.
Article
Engineering, Biomedical
Yihang Ruan, Huilan Zhuang, Xuemei Zeng, Lili Lin, Xuechun Wang, Panpan Xue, Shan Xu, Qi Chen, Shuangqian Yan, Wei Huang
Summary: An engineered microbial nanohybrid based on Escherichia coli and Cu2O nanoparticles is designed for tumor-mediated photothermal therapy and immunosuppression reversion in colon tumors. The hybrid accumulates in tumor sites and Cu2O nanoparticles convert to CuxS by consuming H2S, exhibiting strong photothermal conversion in the near-infrared II biological window. Furthermore, the microbial nanohybrid induces cellular ferroptosis and cuproptosis, and reverses immunosuppression in colon tumors.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zixing Wang, Kang Luo, Jian-Fang Wu, Peng Gao, Kexuan Wang, Shi Chen, Jian Tu, Xiulin Fan, Jilei Liu
Summary: This study improves the performance limitations of potassium-ion batteries at extreme temperatures by regulating the ion-solvent-coordinated structure, leading to enhanced cycling performance and capacity retention.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Correction
Chemistry, Multidisciplinary
Pingping Liang, Qianyun Tang, Yu Cai, Gongyuan Liu, Weili Si, Jinjun Shao, Wei Huang, Qi Zhang, Xiaochen Dong
Summary: This study provides a correction for the self-quenched ferrocenyl diketopyrrolopyrrole organic nanoparticles and their amplifying photothermal effect for cancer therapy, which serves as a reference for further research.
Correction
Chemistry, Multidisciplinary
Shichao Zhang, Changyu Cao, Xinyi Lv, Hanming Dai, Zhihao Zhong, Chen Liang, Wenjun Wang, Wei Huang, Xuejiao Song, Xiaochen Dong
Summary: The study introduces a novel H2O2 self-sufficient nanoplatform with domino effects for thermal-responsive enhanced chemodynamic therapy.
Article
Chemistry, Multidisciplinary
Junpeng Ji, Biao Yang, Chaohong Zhang, Yulu Cai, Jingwei Chen, Changbin Zhao, Tao Wang, Lijie Wu, Ming Liu, Junwu Bai, Jiangfeng Wang, Zhongbin Wu, Shufen Chen, Haifeng Ling, Zhongfu An, Yonghua Chen, Jianpu Wang, Wei Huang, Hong Meng
Summary: This study demonstrates a new type of organic light-emitting device that integrates emission and control functions, full-color tunability, and a simple device structure. The device utilizes a specially designed electrode structure and can be controlled using a simple binary number coded digital signal.
