Guo He

ORCID: 0000-0002-8943-7959
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About
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Research Areas
  • Perovskite Materials and Applications
  • Conducting polymers and applications
  • Organic Electronics and Photovoltaics
  • Organic Light-Emitting Diodes Research
  • Photoacoustic and Ultrasonic Imaging
  • Analytical Chemistry and Sensors
  • Ga2O3 and related materials
  • Thermography and Photoacoustic Techniques
  • Luminescence and Fluorescent Materials
  • Quantum Dots Synthesis And Properties
  • Solid-state spectroscopy and crystallography
  • Advanced Biosensing Techniques and Applications
  • Ultrasound Imaging and Elastography
  • Extracellular vesicles in disease
  • Gas Sensing Nanomaterials and Sensors
  • Advanced Optical Sensing Technologies
  • Advanced battery technologies research
  • Cell Image Analysis Techniques
  • Advanced Fiber Laser Technologies
  • Photonic and Optical Devices
  • Optical Coherence Tomography Applications

State Key Laboratory of Luminescent Materials and Devices
2021-2024

Sungkyunkwan University
2022-2024

South China University of Technology
2021-2024

Nanjing University of Science and Technology
2022

Chinese PLA General Hospital
2022

Key Laboratory of Guangdong Province
2021

South China Normal University
2014-2015

Abstract Formamidinium lead triiodide‐based perovskite solar cells have emerged as one of the most promising candidates that can be potentially used to develop photovoltaic technologies in future. The commercial use cell modules (PSCMs) is limited it challenging fabricate high‐quality, efficient, and stable large‐area light‐absorbing films. Heptadecafluorooctanesulfonic acid tetraethylammonium salt (HFSTT), containing fluorinated long alkyl chains hydrophobic tails sulfonic groups (SO3 − )...

10.1002/aenm.202200632 article EN Advanced Energy Materials 2022-04-07

Abstract Mixed‐halide perovskites have emerged as outstanding light absorbers that enable the fabrication of efficient solar cells; however, their instability hinders commercialization such systems. Grain‐boundary (GB) defects and lattice tensile strain are critical intrinsic‐instability factors in polycrystalline perovskite films. In this study, light‐induced cross‐linking acrylamide (Am) monomers with non‐crystalline films is used to fabricate highly stable cells (PSCs). The Am induce...

10.1002/aenm.202302743 article EN Advanced Energy Materials 2023-11-01

The new concept of fabricating high-performance visible-blind narrowband UV photomultiplication-type organic photodetectors provides a necessary prerequisite for flexible wearable monitoring and other promising applications.

10.1039/d1mh00776a article EN Materials Horizons 2021-01-01

Abstract Low‐cost and flexible panchromatic organic photodetectors (OPDs) are one of the most promising alternatives in next‐generation wearable electronics, but they still face formidable challenges replacing brittle indium tin oxide electrode suffer from low near‐infrared (NIR) photo‐response. Herein, low‐cost metal copper (Cu) is used as a semi‐transparent anode to fabricate high‐performance multiplication‐type OPDs. Because advantages smooth surface, lower sheet resistance, good...

10.1002/adfm.202108839 article EN Advanced Functional Materials 2022-02-09

Abstract Photomultiplication‐type organic photodetectors (PM‐OPDs) have developed rapidly in UVA, visible and near‐infrared ranges, but they face great challenges the UVB UVC mainly due to difficulty of simultaneously realizing deep UV light‐transmittance electrode high gain structure. Here, copper silver bilayer composite electrodes are overcome problem island growth, thus ensuring light transmittance good matching with electrical mechanism. The fabricated device shows external quantum...

10.1002/adfm.202206993 article EN Advanced Functional Materials 2022-08-15

Abstract Due to the hydrophobic organic cations, quasi‐two‐dimensional (quasi‐2D) lead halide perovskite materials have shown better moisture resistance. However, inappropriate multiphase structure in quasi‐2D films seriously affects efficient transport of energy from low‐n domains high‐n domains, especially when prepared air. Herein, study develops 30% ± 10% humidity and studies their amplified spontaneous emission (ASE) properties. It can be seen that phase disproportionation air is...

10.1002/adfm.202315172 article EN Advanced Functional Materials 2024-01-18

We present a photoacoustic flow cytography with fast crosssectional (B-scan) imaging to precisely identify specific cells in vivo.The B-scan speed of the system is up 200 frame/s lateral resolution 1.5 μm, which allows dynamically image flowing within microvascular.The shape, size and intensity target are extracted from streaming images integrated into standard pattern distinguish cell types.Circulating red blood melanoma vessels simultaneously identified on melanoma-bearing mouse model.The...

10.1364/boe.6.003748 article EN cc-by Biomedical Optics Express 2015-09-03

Photoacoustic dermoscopy (PAD) is a promising branch of photoacoustic microscopy (PAM) that can provide range functional and morphologic information for clinical assessment diagnosis dermatological conditions. However, most PAM setups are unsuitable dermatology because their single-scale mode narrow frequency band result in insufficient imaging depth or poor spatiotemporal resolution when visualizing the internal texture skin.

10.21037/qims-21-878 article EN Quantitative Imaging in Medicine and Surgery 2022-03-09

Perovskite Solar Cells In article number 2302743, Gill Sang Han, Hyun Suk Jung and co-workers develop highly efficient stable perovskite solar cells (PSCs) modules by introducing light-induced cross-linking of acrylamide monomers with non-crystalline films. This strategy effectively passivates grain boundary defects, the film becomes hydrophobic after cross-linking, ensuring stability PSCs under harsh conditions.

10.1002/aenm.202470005 article EN Advanced Energy Materials 2024-01-01

Perovskite photodetectors (PPDs) offer a promising solution with low cost and high responsivity, addressing the limitations of traditional inorganic photodetectors. However, there is still room for improvement in terms dark current stability air-processed PPDs. In this study, 4,4',4''-tris(carbazol-9-yl)-triphenylamine (TCTA) was utilized as nucleation agent to enhance quality perovskite films. The synergistic effect TCTA moisture promotes rapid PbI2-PbCl2, resulting an increased rate...

10.1039/d3nr06513h article EN Nanoscale 2024-01-01

Perovskite solar cells have made significant progress in the past decade, demonstrating promising potential for next‐generation technology. However, strain‐induced intrinsic instability of mixed‐halide perovskites poses a obstacle to their widespread commercialization. Relaxation perovskite lattice strain is crucial approach enhancing photovoltaic performance and broadening application potential. In this study, authors conduct an analysis progression thin films, examining its impact on...

10.1002/solr.202400203 article EN Solar RRL 2024-08-01

A high efficiency near-infrared (NIR) photomultiplication-type organic photodetector (PM-OPD) has been achieved by combining the energetic disorder and trap-assisted charge tunneling injection. The performance of prepared NIR PM-OPD with simple structure was significantly improved, external quantum specific detectivity (D*) reached 5675% 5.0 × 1011 Jones, respectively. Furthermore, high-performance also showed application in human heart rate detection.

10.1063/5.0177719 article EN Applied Physics Letters 2023-12-11

An α-phase FA-based perovskite is successful stabilized in ambient air using MASCN by strong interaction between ions and hydrogen bonds.

10.1039/d1se00784j article EN Sustainable Energy & Fuels 2021-01-01
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