A5100635001- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Metallurgy and Material Forming
- Advancements in PLL and VCO Technologies
- Advanced Vision and Imaging
- Gas Sensing Nanomaterials and Sensors
- Blind Source Separation Techniques
- Geoscience and Mining Technology
- Geomechanics and Mining Engineering
- Solid-state spectroscopy and crystallography
- Analytical Chemistry and Sensors
- Advanced Photocatalysis Techniques
- Metal Forming Simulation Techniques
- Industrial Technology and Control Systems
- Advanced Optical Imaging Technologies
- Boron Compounds in Chemistry
- Advanced Electrical Measurement Techniques
- Simulation and Modeling Applications
- Coal Properties and Utilization
- Advanced Image Fusion Techniques
State Ethnic Affairs Commission
2024
North Minzu University
2024
Hezhou University
2020-2023
Guilin University of Electronic Technology
2023
Shaanxi Yulin Energy Group
2023
Wuhan University of Technology
2018-2021
State Key Laboratory of Silicate Materials for Architecture
2020
Inha University
2015
Xi'an University of Science and Technology
2015
Zhengzhou University
2014
The photovoltaic performance of inorganic perovskite solar cells (PSCs) still lags behind the organic–inorganic hybrid PSCs due to limited light absorption wide bandgap CsPbI3-xBrx under illumination. Constructing tandem devices with organic can effectively extend toward long-wavelength region and reduce radiative photovoltage loss. Herein, we utilize wide-bandgap CsPbI2Br semiconductor narrow-bandgap PM6:Y6-BO blend fabricate perovskite/organic an efficiency 21.1% a very small open-circuit...
Abstract Developing a fundamental understanding of the molecular order within photoactive layer, and influence therein solution casting conditions, is key factor in obtaining high power conversation efficiency (PCE) polymer solar cells. Herein, PBDB‐T:INPIC‐4F nonfullerene cells tuned by control organization time during film casting, crucial role retarding crystallization INPIC‐4F achieving performance demonstrated. When cast with presence solvent vapor to prolong time, molecules form...
CsPbX3 nanocrystal (NC)-based blue perovskite light-emitting diodes (PeLEDs) are still in a backward position while their green and red counterparts have achieved significant progress the past few years. The emission spectrum of NCs can be manipulated via ratio control halides precursor or halogen exchange NCs. Herein, CsPbBrxCl3–x synthesized ambient condition. With tetrabutylammonium p-toluenesulfonate (TBSA) added as ligand during purification process as-synthesized NCs, bromine is...
Abstract CsPbX 3 perovskite nanocrystals (NCs) are promising light‐emitting materials that have gained significant attention over the past few years. The synthesis of NCs is usually performed in an inert environment under high temperature conditions; however, this requirement hinders commercial development. Low‐temperature preparation with rationally designed surface ligands crucial to performance and stability diodes (LEDs). In work, short‐chain ligand‐anchored CsPbBr ambient conditions at...
Abstract Inorganic perovskite solar cells (PSCs) have witnessed great progress in recent years due to their superior thermal stability. As a representative, CsPbI 2 Br is attracting considerable attention as it can balance the high efficiency of 3 and stability CsPbBr . However, most research employs doped charge transport materials or applies bilayer layers obtain decent performance, which vastly complicates fabrication process scarcely satisfies commercial production requirement. In this...
Graphene/Fe3O4 nanocomposite was prepared for the immobilization of hemoglobin (Hb) to improve electron transfer between Hb and glass carbon electrode (GCE). The characterization nanocomposites described by transmission microscopy, Fourier transform infrared, Raman spectroscopy, X-ray photoelectron respectively. electrochemistry on graphene/Fe3O4-based GCE investigated cyclic voltammetry amperometric measurement. modified showed a wide linear range from 0.25 μmol/L 1.7 mmol/L with...
p-Type semiconductor <bold>PBDB-T</bold> and its derivatives have been explored as dopant-free hole transport materials for CsPbI<sub>2</sub>Br inorganic perovskite solar cells, with <bold>PBDB-T-Si</bold> enabling a PCE of 15.6% FF exceeding 84%.
Fully analytic mesh-based computer generated hologram enables efficient and precise representation of three-dimensional scene. Conventional method assigns uniform amplitude inside individual mesh, resulting in reconstruction the scene flat shading. In this paper, we report an extension conventional to achieve continuous shading where each mesh is continuously varying. The proposed shading, while maintaining fully framework without any sacrifice precision. can also be extended enable fast...
Metal coordination polymers are organometallic frameworks in which a metal and an organic ligand linked via dative bond.
Metal halide perovskites are considered to be the new generation of semiconductors for optoelectronic devices because their low material cost and superior optical electrical properties, such as narrow emission line width, tunable wavelength, high charge carrier mobility. However, morphological energetic defects grown from solution casting hinder maximum achievable performance devices. Additive strategy has been demonstrated a facile effective method acquire quality perovskite films. In this...
Interface engineering has become a critical process to fabricate efficient and stable planar heterojunction perovskite solar cells (PSCs), as the degradation of perovskite, hysteresis, photo thermal instability can all be triggered by defective interfaces PSCs. Herein, two fullerene derivatives, NMPPF NMTTF, have been designed interlayers between MAPbI3 TiO2 electron transport layer. The thiophene terminals NMTTF found effectively passivate uncoordinated Pb2+ reducing trap density charge...
Perovskite solar cells (PSCs) have demonstrated encouraging progress in recent years. Additive engineering, where diverse additives are incorporated into the perovskite layer, has been widely adopted to tune grains, reduce defect density and charge recombination. Here, we observe a universal phenomenon that organic chloride enhance open circuit voltage (VOC) power conversion efficiencies (PCEs) of direct PSCs but decrease VOC, short-circuit current (JSC), PCE inverted PSCs, regardless choice...
An efficient and spectrally stable blue light-emitting diode is critical for realizing full-color emission display of perovskite diodes (PeLEDs). The band gap mixed-halide perovskites can be easily tuned to emit pure deep light; however, anion migration in under excitation electronic fields results poor stability PeLEDs. Therefore, suppressing halide crucial the Herein, we introduce diphenylguanidine bromide (DPGABr) as a passivator block paths immobilize anions through hydrogen bonding...
Abstract Low‐dimensional perovskites formed with the assistance of organic cations as interlayers have been widely used to fabricate high‐performance light‐emitting diode devices, attributing their dielectric and quantum‐confinement effects rapid energy transfer process. However, ion migration at perovskite grain boundaries dissociation ligands induced by “van der Waals” gaps between large are disadvantageous stability diodes. Here, crosslinkable 3‐butenylamine hydrochloride is introduced in...
Spray-coating as a high throughput and low-cost deposition process endows perovskite solar cell (PSC) devices the possibility of large-scale production, while low device efficiency due to poor uncontrolled film quality impedes commercialization PSCs. Herein, we demonstrate binary additive engineering strategy achieve 18.2% with minor hysteresis by spray-coating (FAPbI3)x(MAPbBr3)1–x hybrid in air. The spray-coated films have hierarchical structure that is composed large grains over 100 μm...
Two-dimensional (2D)/three-dimensional (3D) perovskites have been successfully applied in high-efficiency light-emitting diodes (LEDs) because of their large exciton binding energy (Eb) caused by the quantum and dielectric confinements. Thermal annealing antisolvent treatments are usually executed order to promote crystallization film quality perovskites, which add complexity device fabrication process. Here, cesium-based 2D/3D perovskite was prepared introducing ammonium halide benzamidine...
Quasi-2D perovskite semiconductors can be created by introducing organic interlayer cations into 3D perovskites and possess large binding energy, superior stability, high luminance efficiency, tunable bandgap, holding promising applications in blue-light emitting devices. Compared with mixed halide perovskites, quasi-2D bromide emit blue light color stability. However, multiple-phases usually co-exist resulting low purity. In this work, three ammonium bromides, namely,...
A high-resolution and Multi-Channel time interval counter is designed using Time-to-Digital Converter(TDC) and(Field-Programmable-Gate-Array) FPGA. The core of the TDC chip which interfaced to controlled by FPGA . Counter has 1 start channel 8 stop channels can be provided with four different modes, thus resolutions. In highest resolution mode, demonstrates a statistical standard deviation 18.6 ps. lowest that 82ps, work endless measurement range internal retrigger start. data read from two...
π-Conjugated benzamidine hydrochloride is introduced into CsPbBr x Cl 3−x NCs to reduce Cs + and halide vacancies suppress nonradiative recombination, leading spectrally stable blue PeLEDs with reduced turn-on voltage, enhanced EQE luminance.