A5100634240- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Arsenic contamination and mitigation
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Fiber Optic Sensors
- Mine drainage and remediation techniques
- Organic Light-Emitting Diodes Research
- Advanced Vision and Imaging
- Photonic and Optical Devices
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Metal Extraction and Bioleaching
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Power Systems and Technologies
- Luminescence and Fluorescent Materials
- Graphene research and applications
- Iron oxide chemistry and applications
- 3D Shape Modeling and Analysis
- Molecular Junctions and Nanostructures
- Optical measurement and interference techniques
- Photonic Crystal and Fiber Optics
Chinese Academy of Sciences
2018-2025
Nanjing University of Aeronautics and Astronautics
2023-2025
Institute of Applied Ecology
2021-2025
University of Illinois Urbana-Champaign
2024
Princeton University
2019-2024
Shanghai University
2024
East China Normal University
2023-2024
Shandong Tumor Hospital
2022-2024
Shandong First Medical University
2022-2024
Tiangong University
2016-2024
A fullerene derivative (α-bis-PCBM) is purified from an as-produced bis-phenyl-C61 -butyric acid methyl ester (bis-[60]PCBM) isomer mixture by preparative peak-recycling, high-performance liquid chromatography, and employed as a templating agent for solution processing of metal halide perovskite films via antisolvent method. The resulting α-bis-PCBM-containing solar cells achieve better stability, efficiency, reproducibility when compared with analogous containing PCBM. α-bis-PCBM fills the...
The performance of three-dimensional (3D) organic-inorganic halide perovskite solar cells (PSCs) can be enhanced through surface treatment with 2D layered perovskites that have efficient charge transport. We maximized hole transport across the layers a metastable Dion-Jacobson (DJ) tuned orientational arrangements asymmetric bulky organic molecules. reduced energy barrier for increased out-of-plane rates by factor 4 to 5, and power conversion efficiency (PCE) PSC was 4.9%. With DJ layer, PCE...
To understand degradation routes and improve the stability of perovskite solar cells (PSCs), accelerated aging tests are needed. Here, we use elevated temperatures (up to 110°C) quantify encapsulated CsPbI3 PSCs under constant illumination. Incorporating a two-dimensional (2D) Cs2PbI2Cl2 capping layer between active hole-transport stabilizes interface while increasing power conversion efficiency all-inorganic from 14.9 17.4%. Devices with this 2D did not degrade at 35°C required >2100 hours...
Incorporation of a hole-transport material that also passivates surface defects results in perovskite solar cells with superior efficiency and stability.
Abstract Metal halide perovskites have emerged as promising photovoltaic materials, but, despite ultralow thermal conductivity, progress on developing them for thermoelectrics has been limited. Here, we report the thermoelectric properties of all-inorganic tin based with enhanced air stability. Fine tuning films is achieved by self-doping through oxidation (ΙΙ) to (ΙV) in a thin surface-layer that transfers charge bulk. This separates doping defects from transport region, enabling electrical...
Abstract Among today’s nonvolatile memories, ferroelectric-based capacitors, tunnel junctions and field-effect transistors (FET) are already industrially integrated and/or intensively investigated to improve their performances. Concurrently, because of the tremendous development artificial intelligence big-data issues, there is an urgent need realize high-density crossbar arrays, a prerequisite for future memories emerging computing algorithms. Here, two-terminal ferroelectric fin diode...
The ever-increasing power conversion efficiency of perovskite solar cells has illuminated the future photovoltaic industry, but development commercial devices is hampered by their poor stability. In this study, we report a scalable stabilization method using vapor-phase fluoride treatment, which achieves 18.1%-efficient modules (228 square centimeters) with accelerated aging-projected
Accessing vertical orientation of two-dimensional (2D) perovskite films is key to achieving high-performance solar cells with these materials. Herein, we report on solvent-vapor annealing (SVA) as a general postdeposition strategy induce strong across broad classes 2D films. We do not observe any local compositional drifts that would result in impure phases during SVA. Instead, our experiments point solvent vapor plasticizing and facilitating their surface-induced reorientation concomitant...
Abstract Typical lead‐based perovskites solar cells show an onset of photogeneration around 800 nm, leaving plenty spectral loss in the near‐infrared (NIR). Extending light absorption beyond nm into NIR should increase photocurrent generation and further improve photovoltaic efficiency perovskite (PSCs). Here, a simple facile approach is reported to incorporate NIR‐chromophore that also Lewis‐base absorbers broaden their photoresponse efficiency. Compared with pristine PSCs without such...
A simple one-step synthesized hole transport material was developed for dopant-free perovskite solar cells with a PCE of 15.4%.
The rapid development of organic electrochemical transistor (OECTs)-based circuits brings new opportunities for next-generation integrated bioelectronics. all-polymer bulk-heterojunction (BHJ) offers an attractive, inexpensive alternative to achieve efficient ambipolar OECTs, and building blocks logic constructed from them, but have not been investigated date. Here, the first BHJ-based OECTs are reported, consisting a blend p-type ladder conjugated polymer state-of-the-art n-type polymer....
The elucidation of structure-to-function relationships for two-dimensional (2D) hybrid perovskites remains a primary challenge engineering efficient perovskite-based devices. By combining insights from theory and experiment, we describe the introduction bifunctional ligands that are capable making strong hydrogen bonds within organic bilayer. We find stronger intermolecular interactions draw charge away perovskite layers, have formulated simple intuitive computational descriptor, separation...
Abstract Respiratory disease can be early warned by many respiratory parameters such as intensity, rhythm, temperature, and breath molecules like acetone. It requires a complex process to measure these simultaneously in clinical practice. Therefore, it is hot topic design portable devices especially wearable electronics monitor conditions continually daily life. Here, flexible self‐powered multi‐parameter respiration sensor based on poly(vinylidene fluoride) (PVDF) thin film interdigital...
Abstract The rapidly advancing improvements in perovskite solar cells (PSCs) are driven, part, by the inclusion of suitable electron transport layers (ETLs) high performance devices. Fullerene derivatives particularly useful ETLs PSCs, but many utilized fullerenes present as isomeric mixtures. opportunities presented single‐isomer, single‐enantiomer PSCs poorly understood. Here, inverted prepared using bis[60]phenyl‐C61‐butyric acid methyl ester derivative ( anti )16,17‐bis[60]PCBM,...
MXene emerges as a premier candidate for electromagnetic shielding owing to its unique properties novel two-dimensional material. Its exceptional electrical conductivity, chemical reactivity, surface tunability, and facile processing render it highly suitable diverse applications. The research status of MXene-based materials is systematically discussed in this paper. First, the single-component material briefly introduced. Subsequently, composite structures constructed by with polymers,...
All-inorganic β-CsPbI3 has superior chemical and thermal stability compared to its hybrid counterparts, but the of state-of-the-art perovskite solar cells (PSCs) under normal operating conditions (i.e., illumination in an inert atmosphere) remains inferior their counterparts. Here, we found that lattice distortion CsPbI3 near perovskite/electron transport layer (ETL) interface can induce polymorphic transformation encapsulated films aged illumination. To suppress this distortion, introduced...
Abstract 2D Ruddlesden–Popper metal‐halide perovskites exhibit structural diversity due to a variety of choices organic ligands. Incorporating bifunctional ligands in such materials is particularly intriguing since it can result novel electronic properties and functions. However, an in‐depth understanding the effects on perovskite structures and, consequently, their excitonic properties, still lacking. Here, n = 1 built with containing ─CN, ─OH, ─COOH, ─phenyl (Ph), ─CH 3 functional groups...
A facile antisolvent vapor diffusion method was employed to grow size-controllable C<sub>60</sub> single crystal microwires for OFETs and photodetectors.