A5100393820- Perovskite Materials and Applications
- Conducting polymers and applications
- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Solid-state spectroscopy and crystallography
- Organic Light-Emitting Diodes Research
- Graphene research and applications
- Molecular Junctions and Nanostructures
- Quantum and electron transport phenomena
- Polymer Nanocomposites and Properties
- Advanced Thermoelectric Materials and Devices
- Asphalt Pavement Performance Evaluation
- Gas Sensing Nanomaterials and Sensors
- MXene and MAX Phase Materials
- Power Systems and Renewable Energy
- Infrastructure Maintenance and Monitoring
- Topological Materials and Phenomena
- Organic Electronics and Photovoltaics
- Advanced Memory and Neural Computing
- Optical properties and cooling technologies in crystalline materials
- Quality Function Deployment in Product Design
- Nanocomposite Films for Food Packaging
- Indoor and Outdoor Localization Technologies
- Phase-change materials and chalcogenides
North China Electric Power University
2013-2025
Jilin Agricultural University
2024
Nanjing University of Posts and Telecommunications
2024
Shanxi Agricultural University
2024
Hunan University
2022
Key Laboratory of Nuclear Radiation and Nuclear Energy Technology
2020-2021
Renewable Energy Systems (United States)
2019
Xi'an University of Technology
2013-2017
Qingdao University of Science and Technology
2014
Great Wall Motors (China)
2014
The bi-functional additive of ammonium benzenesulfonate enables the fabrication low-defect and high-performance perovskite solar cells.
Abstract Inorganic cubic CsPbI 3 perovskite (α‐CsPbI ) has been widely explored for solar cells (PSCs) due to its thermal stability and suitable bandgap of 1.73 eV. However, α‐CsPbI usually requires high synthesis temperatures (>320 °C). Additionally, it undergoes phase transition the nonperovskite structure (β‐CsPbI ), which results in poor photoelectric performance devices. In this study, is first found that tortuous 3D (γ‐CsPbI can be prepared used PSCs by solution process without any...
Dynamically populating triplet excitons under external stimuli is desired to develop smart optoelectronic materials, but it remains a formidable challenge. Herein, we report resonance-induced excited state regulation strategy dynamically modulate the exciton population by introducing self-adaptive N-C═O structure phosphors. The developed phosphors activated high-power ultraviolet irradiation exhibited enhanced photoactivated organic ultralong room temperature phosphorescence (PA-OURTP) with...
A cost-effective carbazole-based hole transporting material achieved a power conversion efficiency over 18% for perovskite solar cells.
All-inorganic cesium lead perovskites have emerged as alternative absorbing layers in solar cells owing to their superb thermal stability compared with the organic-inorganic hybrid perovskites. However, desired cubic CsPbI3 phase forms at a high temperature and suffers from transition orthorhombic yellow room temperature. A developed nonstoichiometric method is applied fabricate CsPbI3- xBr x ( < 1) films by adding excess CsBr into precursor solution. The solution helps produce microstrain...
As an emerging ultrathin semiconductor material, Bi2O2Se exhibits prominent performances in electronics, optoelectronics, ultrafast optics, etc. However, until now, the in-plane growth of thin films is mostly fulfilled on atomically flat mica substrates with interfacial electrostatic forces setting obstacles for transfer to fabricate functional van der Waals heterostructures. In this work, controlled inclined realized apparently reduced contact areas upon flakes. Consequently, could be...
Four carbazole‐triphenylamine hole transporting materials (HTMs) with a pyridine or benzene on the N of carbazole have been designed and developed. The molecular structures their photophysical, electrochemical, thermal, as well photovoltaic properties in perovskite solar cells (PSCs) are comprehensively analyzed. It is noted that pyridine‐contained compounds show bathochromic spectra response, slightly lower HOMO level, higher thermal stability than benzene‐contained counterparts....
The phase instability of cesium lead halide perovskite is still a substantial challenge hindering its application. A 2D–3D all-inorganic Cs2PbI2Cl2–CsPbI2.5Br0.5 solar cell was successfully developed to address this issue. 2D Cs2PbI2Cl2 distributed among the grain boundaries 3D CsPbI3–xBrx grains. existence effectively facilitated (100) preferential crystal orientation CsPbI2.5Br0.5 crystals, promoting carrier transport. smooth transition region between (003)2D//(001)3D interface indicated...
Understanding spinterfaces between magnetic metals and organic semiconductors is essential to unlock the great potentials that materials host for spintronic applications. Although plenty of efforts have been devoted studying devices, exploring role metal/molecule at two-dimensional limit remains challenging because excessive disorders traps interfaces. Here, we demonstrate atomically smooth interfaces through nondestructively transferring electrodes on epitaxial grown single-crystalline...
Abstract Efficient metal‐halide perovskite solar cells (PSCs) with a regular structure typically use high‐temperature‐processed TiO 2 electron‐transport layers (ETLs), which suffer from high electron recombination and inherent UV instability. Herein, we present low‐temperature solution‐processed lithium bis(trifluoromethanesulfonyl)imide (Li‐TFSI)‐doped C 60 (Li‐C ) ETLs for high‐efficiency UV‐stable planar PSCs an n‐i‐p architecture. We found that simple Li‐TFSI doping ensured better energy...
Because of their attractive photoelectrical properties, perovskite-phase, CsPbX3 (X = I, Br, or Cl) materials have recently gained attention for applications in resistive switching (RS) memories. However, phase transition the CsPbI3 from perovskite (cubic phase) to nonperovskite (orthorhombic at room temperature is problematic; it remains a challenge apply RS In present work, polymethylmethacrylate (PMMA)-assisted deposition method introduced fabricate composite film with PMMA (PMMA@CsPbI3)...
Abstract The efficiency of proton exchange membrane electrolysis cells (PEMECs) is much influenced by the dynamics gas/liquid two‐phase flow at anode side, especially high current densities. Among different components PEMECs, porous transport layers (PTLs) are essential for mass transfer optimization. In this work, novel titanium fiber PTLs designed and fabricated an angle‐selective stacking method. Three oriented with 30°, 60°, 90° angles compared commercial felt. X‐ray micro‐computed...
Highly efficient metal/semiconductor/metal structured photodetectors were constructed based on Bi<sub>2</sub>O<sub>2</sub>Se thin films with lithography-free electrode fabrication.
In this work, a simple carbazole-based hole transport material with triphenylamine moieties, termed LD22, has been used in perovskite solar cells (PSCs). It is noted that LD22 exhibits proper HOMO level of −5.27 eV, high mobility 1.65 × 10–5 cm2 V–1 s–1, and relatively glass-transition temperature 132 °C. When was PSCs, pristine LD22-based PSCs showed power conversion efficiency (PCE) 13.04%. doped, the PCE improves to promising 17.18%. More importantly, concentration little influence on PSC...
Methylammonium (MA) bismuth iodide ((CH 3 NH ) Bi 2 I 9 is a promising perovskite material for solar cell application considering the air stability and nontoxic lead‐free molecular constitution. However, further improvement of device performances prohibited by wide bandgap (≈2.1 eV) unsatisfied crystallinity (CH films. Herein, developed low‐pressure vapor‐assisted solution process (LP‐VASP) method applied to obtain sulfur‐incorporated bismuth‐based perovskites Due presence sulfur, both...
Atom-substituting doping by atmospheric-pressure chemical vapor deposition (AP-CVD) is an effective and promising strategy for changing the properties of two-dimensional transition-metal dichalcogenides (2D TMDs). In this paper, we successfully grew V-doped MoSe2 films. The photoluminescence (PL) spectra gradually red-shifted with increase concentration, X-ray photoelectron spectroscopy (XPS) after shifted toward a lower binding energy, change polarity before can be seen in transfer...
Introduction of Cs into FAPbI3 displayed great potential to stabilize the black perovskite phase by forming FA1- xCs xPbI3, which has been investigated widely based on solution process. During processing, over-rapid intercalating reaction rate between PbI2 and A cations (FA+ Cs+) can bring some undesirable structural transitions. However, in vapor-assisted process (VASP), be reduced effectively. In addition, formation regulated significantly intermediate phase. this study, FACl was employed...
The inorganic halide perovskite CsPbI<sub>3</sub> has shown great promise in efficient solar cells.
Currently, in the field of photovoltaics, researchers are working hard to produce efficient, stable, and commercially feasible devices. The prime objective behind innovation any photovoltaic device is yield more energy with easy manufacture less process cost. Perovskite solar cells (PSCs) prominent owing its low material cost, simple fabrication process, ideal optoelectronic properties. Despite rapid augmentation progress PSCs, it still a bottleneck high-quality perovskite layer at...
Bismuth-based perovskites are potentially a promising alternative for lead-free perovskites. During bond formation, however, trivalent ions on Cs3Bi2I9 with CsI/BiI3 ratio of 1.5/1 form 0D-neutral charged compounds higher bandgap (>2.0 eV) and poor absorption capacity. Mixed 0/2-dimensional structures suitable substitutes due to their low bandgap. So far, the reported ratios 0D/2D 1:1, 1:2 1:3. Herein, new 1/1.5 is reported. Caesium bismuth iodide at was synthesised using one-step...
Abstract Although ultrahigh photoconductive gain is achieved in organic semiconductor‐sensitized graphene phototransistors, the response speed limited by photo‐induced carrier injection at organic/graphene interface. In this work, an insulating hexagonal boron nitride layer inserted between heterostructure and to block interfacial transport. Above h ‐BN layer, adopted as light‐absorbing photoresponse of realized through electrical gating atop dielectric accumulated carriers heterostructure....