A5033877906- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Conducting polymers and applications
- Solid-state spectroscopy and crystallography
- 2D Materials and Applications
- Luminescence Properties of Advanced Materials
- Ga2O3 and related materials
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Optical properties and cooling technologies in crystalline materials
- Semiconductor Quantum Structures and Devices
- Electronic and Structural Properties of Oxides
- Radiation Detection and Scintillator Technologies
- Arsenic contamination and mitigation
- MXene and MAX Phase Materials
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Image Enhancement Techniques
- Heavy Metal Exposure and Toxicity
- ZnO doping and properties
- Advanced Photonic Communication Systems
- Advanced Thermoelectric Materials and Devices
- Advanced Semiconductor Detectors and Materials
- Advanced Antenna and Metasurface Technologies
Wuhan University
2012-2025
Wuhan Textile University
2024-2025
Xihua University
2025
Chinese People's Liberation Army
2024
Shenzhen University
2021-2023
State Council of the People's Republic of China
2018-2020
Kunming University of Science and Technology
2020
Chinese Academy of Medical Sciences & Peking Union Medical College
2018
China Three Gorges University
2015
The University of Western Australia
2011
Abstract The carrier concentration of the electron‐selective layer (ESL) and hole‐selective can significantly affect performance organic–inorganic lead halide perovskite solar cells (PSCs). Herein, a facile yet effective two‐step method, i.e., room‐temperature colloidal synthesis low‐temperature removal additive (thiourea), to control SnO 2 quantum dot (QD) ESLs achieve high‐performance PSCs is developed. By optimizing electron density QD ESLs, champion stabilized power output 20.32% for...
Abstract Large single crystals serve as an ideal platform for investigating intrinsic material properties and optoelectronic applications. Here we develop a method, namely, room-temperature liquid diffused separation induced crystallization that uses silicone oil to separate the solvent from perovskite precursors, grow high-quality crystals. The growth kinetics of using this method is elucidated, their structural are carefully characterized. resultant crystals, taking CH 3 NH PbBr example,...
All-perovskite tandem solar cells (TSCs) hold great promise in terms of ultrahigh efficiency, low manufacturing cost, and flexibility, stepping forward to the next-generation photovoltaics. However, their further development is hampered by relatively performance low-bandgap (LBG) tin (Sn)-lead (Pb) perovskite (PSCs). Improving carrier management, including suppressing trap-assisted non-radiative recombination promoting transfer, significance enhance Sn-Pb PSCs. Herein, a management strategy...
Halide perovskites have emerged as highly promising materials for ionizing radiation detection due to their exceptional characteristics, including a large mobility-lifetime product, strong stopping power, tunable band gap, and cost-effective crystal growth via solution processes. Semiconductor-type X-ray detectors employing various micro/nano perovskite shown impressive progress in achieving heightened sensitivity lower limits. Here, we present comprehensive review of the applications direct...
We have developed a new method to introduce defect passivation agents using an <italic>in situ</italic> technique for planar p–i–n perovskite solar cells, during the anti-solvent deposition step.
Abstract Perovskite photodetectors (PDs) with tunable detection wavelength have attracted extensive attention due to the potential application in field of imaging, machine vision, and artificial intelligence. Most perovskite PDs focus on I‐ or Br‐based materials their easy preparation techniques. However, main photodetection capacity is situated visible region because narrower bandgap. Cl‐based wide bandgap perovskites, such as CsPbCl 3 , are scarcely reported bad film quality spin‐coated...
Formamidinium lead iodide (FAPbI3) perovskites are promising emitters for near-infrared light-emitting diodes. However, their performance is still limited by defect-assisted nonradiative recombination and band offset-induced carrier aggregation at the interface. Herein, we introduce a couple of cadmium salts with acetate or halide anion into FAPbI3 perovskite precursors to synergistically passivate material defects optimize device structure. Particularly, analogs, containing zero-dimensional...
Abstract Chalcogenide‐based semiconductors have recently emerged as promising candidates for optoelectronic applications, mainly benefiting from their facile and low‐cost processability, chemical versatility, tunable properties. Despite the recent success of chalcogenide‐based thin‐film photovoltaics, they been barely leveraged in photodetection, due to complicated charge transport related trap states. In addition, most chalcogenide photodetectors are reported broadband, visible which is but...
Lead halide perovskite single crystals have attracted wide interest in the field of X-ray detection due to their excellent photophysical properties. However, inherent toxicity and high thickness restrict applications flexible devices. In this paper, designing a micronanometer-scale detector based on all-inorganic lead-free CsAg2I3 (CAI) crystal microbelts (MBs) has addressed above issues. These CAI MBs can be synthesized various substrates with quality stability. Based characteristics MBs,...
Low band gap tin-lead perovskite solar cells (Sn-Pb PSCs) are expected to achieve higher efficiencies than Pb-PSCs and regarded as key components of tandem PSCs. However, the realization high efficiency is challenged by instability Sn2+ imperfections at charge transfer interfaces. Here, we demonstrate an efficient ideal formamidinium (FA)-based Sn-Pb (FAPb0.5 Sn0.5 I3 ) PSC, manipulating buried NiOx /perovskite interface with 4-hydroxyphenethyl ammonium halide (OH-PEAX, X=Cl- , Br- or I-...
Abstract Weak‐light imaging holds immense significance in various applications. Recently, there has been significant research focused on 2D perovskites for photodetectors (PDs), owing to their superior photoelectric properties. However, the utilization of high‐performance weak‐light detection remains limited, and is a notable absence demonstration ultraviolet (UV) imaging. Herein, high‐sensitive UV detectors with an ultra‐low limit are demonstrated, utilizing perovskite (PA) 2 PbBr 4 (PPB)...
Abstract Low‐bandgap (LBG, E g ≈1.25 eV) tin‐lead (Sn‐Pb) perovskite solar cells (PSCs) play critical roles in constructing efficient all‐perovskite tandem (TSCs) that can surpass the efficiency limit of single‐junction cells. However, traditional poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) hole transport layer (HTL) LBG PSCs usually restricts device and stability. Here, a strategy employing 2‐aminoethanesulfonic acid (i.e., taurine) as interface bridge to fabricate...
Metal halide perovskites have emerged as promising candidates for next-generation optoelectronics. However, the present understanding of their recombination processes and trap states within devices are still limited, which is also inevitable in state-of-the-art perovskite solar cells with multiple passivation strategies various additives involved. Recent works demonstrated that metal cations incorporated could potentially reduce non-radiative losses improve device performance to some extent....
Two-dimensional (2D) Dion-Jacobson (DJ) perovskites typically outperform Ruddlesden-Popper (RP) analogs in terms of photodetection (PD). However, the mechanism behind this enhanced performance remains elusive. Theoretical calculations for elucidating interlayer spacer conformation-induced multiple hydrogen bonds 2D perovskite are presented, along with synthesis DPAPbBr
Abstract Two-dimensional Dion-Jacobson (DJ) perovskite has garnered significant attention due to its superior responsivity and operation stability. However, efforts are predominantly focused on discovering new organic spacer synthesize novel perovskites, while material-form-associated light management, which is crucial for enhancing the photodetector’s efficiency, largely overlooked. Herein, we introduced surface management strategy into DJ-type system by synthesizing surface-patterned...
In recent years, hybrid organic–inorganic perovskites have emerged as promising photosensing materials for next-generation solution-processed photodetectors, achieving high responsivity, fast speed, and large linear dynamic range. particular, perovskite photoresistors possess low-cost fabrication easy integration with low dimensional structures. However, a relatively dark current is still limiting the further development of photoresistors. Herein, we introduce full-inorganic polycrystalline...
All-inorganic Bi-based perovskites have attracted much attention due to their excellent stability, environmentally friendly, and low-cost solution processability. However, the large exciton binding energy small light absorption coefficient, performance of perovskite photodetector (PD) is far behind traditional Pb-based PDs. In this work, lead-free all-inorganic Cs3Bi2I9 (CBI) single crystal was synthesized by a space-confined antisolvent-assisted crystallization method for high-performance,...
Abstract Short‐wavelength infrared photo‐sensing materials are dominated by germanium, indium gallium arsenide, antimonide, and mercury cadmium telluride. However, the complex fabrication process high production cost hinder their widespread applications. Recently, Te x Se 1‐x has shown great potential for photodetection, but ‐based devices still suffering from extremely dark current poor device performance. In this work, high‐quality films fabricated thermal evaporation low‐temperature...