A5069057872- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Analytical Chemistry and Sensors
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Conducting polymers and applications
- Water Quality Monitoring and Analysis
- Ga2O3 and related materials
- Infrared Target Detection Methodologies
- Thermography and Photoacoustic Techniques
- Biosensors and Analytical Detection
- Luminescence and Fluorescent Materials
- Advanced Semiconductor Detectors and Materials
- Quantum Dots Synthesis And Properties
State Key Laboratory on Integrated Optoelectronics
2022-2025
Jilin University
2022-2025
High-sensitivity organic photodetectors (OPDs) with strong near-infrared (NIR) photoresponse have attracted enormous attention due to potential applications in emerging technologies. However, few semiconductors been reported photoelectric response beyond ~1.1 μm, the detection limit of silicon detectors. Here, we extend absorption small-molecule below bandgap, and even 0.77 eV, through introducing newly designed quinoid-terminals high Mulliken-electronegativity (5.62 eV). The fabricated...
Abstract Detecting short‐wavelength infrared (SWIR) light has underpinned several emerging technologies. However, the development of highly sensitive organic photodetectors (OPDs) operating in SWIR region is hindered by their poor external quantum efficiencies (EQEs) and high dark currents. Herein, high‐sensitivity SWIR‐OPDs with an efficient photoelectric response extending up to 1.3 µm reported. These OPDs utilize a new ultralow‐bandgap molecular semiconductor featuring quinoidal tricyclic...
Abstract Low‐bandgap tin (Sn)‐lead (Pb) halide perovskites can achieve near‐infrared response for photodetectors. However, the Sn‐based devices suffer from notorious instability and high defect densities due to oxidation propensity of Sn 2+ . Herein, a multifunctional additive 4‐amino‐2,3,5,6‐tetrafluorobenzoic acid (ATFBA) is presented, which passivate surface defects inhibit through hydrogen bonds chelation coordination terminal amino carboxyl groups. The perfluorinated benzene ring...
Nowadays, long-wavelength infrared (LWIR) HgCdTe detectors are developing towards high operating temperatures. There remains a lack of knowledge on the operational mechanism LWIR at room temperature. This letter conducted an in-depth study anomalous non-equilibrium state Through laser beam-induced current (LBIC) photocurrent mapping testing, it was found that there high-energy states. The junction formed by states has minority carrier diffusion length up to <inline-formula...