A5101632580- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Semiconductor materials and devices
- Thin-Film Transistor Technologies
- Organic Light-Emitting Diodes Research
- Advanced biosensing and bioanalysis techniques
- Nanocluster Synthesis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Solid-state spectroscopy and crystallography
- ZnO doping and properties
- Advanced Photocatalysis Techniques
- Silicon Nanostructures and Photoluminescence
- Advancements in Semiconductor Devices and Circuit Design
- Luminescence Properties of Advanced Materials
- Evaluation Methods in Various Fields
- Environmental Quality and Pollution
- Advanced Battery Technologies Research
- Ubiquitin and proteasome pathways
- Advanced Battery Materials and Technologies
- Geographic Information Systems Studies
- Organic and Molecular Conductors Research
- Advanced battery technologies research
- Radiation Effects in Electronics
Southwest University
2024-2025
Anhui Normal University
2025
Huaibei Normal University
2025
Civil Aviation University of China
2024
Yangzhou University
2024
Northeast Normal University
2024
Peking University
2007-2023
Hong Kong University of Science and Technology
2022-2023
University of Hong Kong
2022-2023
Peking University Shenzhen Hospital
2021
Abstract Compared with silicon‐based solar cells, organic–inorganic hybrid perovskite cells (PSCs) possess a distinct advantage, i.e., its application in the flexible field. However, efficiency of device is still lower than that rigid one. First, it found dense formamidinium (FA)‐based film can be obtained help N ‐methyl‐2‐pyrrolidone (NMP) via low pressure‐assisted method. In addition, CH 3 NH Cl (MACl) as additive preferentially form MAPbCl 3− x I seeds to induce phase transition and...
All‐inorganic CsPbI 2 Br perovskite has attracted increasing attention, owing to its outstanding thermal stability and suitable bandgap for optoelectronic devices. However, the substandard power conversion efficiency (PCE) large energy loss ( E ) of solar cells (PSCs) caused by low quality high trap density films still limit application Herein, post‐treatment evaporating cesium bromide (CsBr) is utilized on top surface passivate Br–hole‐transporting layer interface reduce . The results...
Perovskite-based optoelectronic devices have attracted considerable attention owing to their excellent device performances and facile solution processing. However, the toxicity intrinsic instability of lead-based perovskites limited commercial development. Moreover, provision an efficient white emission from a single perovskite layer is challenging. Here, novel electrically excited light-emitting diodes (WLEDs) based on lead-free double Cs2 AgIn0.9 Bi0.1 Cl6 quantum dots (QDs) without any...
Colloidal perovskite nanocrystals (PNCs) display bright luminescence for light-emitting diode (LED) applications; however, they require post-synthesis ligand exchange that may cause surface degradation and defect formation. In situ-formed PNCs achieve improved passivation using a straightforward synthetic approach, but their LED performance at the green wavelength is not yet comparable with of colloidal PNC devices. Here, it found limitations in stem from uncontrolled formation kinetics:...
Flexible perovskite solar cells (PSCs) were ideal candidates for wearable devices due to the merits of flexibility, high efficiency, and being lightweight, they could be fabricated in a continuous roll-to-roll production process achieve large-area low cost devices. Herein, efficiency (up 18.53%) fill factor (0.81) flexible PSCs (ITO/SnO2/KCl/MAPbI3/spiro-OMeTAD/Ag) achieved by low-pressure assisted solution processing under temperature (⩽100 °C). The surface morphology crystallinity films...
High-efficiency organic-inorganic hybrid perovskite solar cells have experienced rapid development and attracted significant attention in recent years. However, instability to an ambient environment such as moisture is a facile challenge for the application of cells. Herein, 1,8-octanediammonium iodide (ODAI) employed construct two-dimensional modified interface by situ combined with residual PbI2 on formamidinium lead (FAPbI3) surface. The ODA2+ ion seems lie horizontally surface...
Abstract The toxicity of lead‐based halide perovskites hampers broad application in optoelectronics. Lead‐free perovskite Cs 2 AgBiBr 6 is considered a promising candidate, owing to the long carrier lifetime and great stability. However, relatively large bandgap 1.98 eV limits its absorption visible region. Herein, Fe 2+ chosen as dopant alloy into single crystals, results an range broadening ≈1350 nm, which longest near‐infrared (NIR) response recorded among lead‐free perovskites. About 1%...
An efficient and practical strategy was developed to synthesize 1,3,4-triaryl-6-trifluoromethylpyridones from CF3-imidoyl sulfoxonium ylides cyclopropenones in good excellent yields. This stepwise [3 + 3] annulation reaction carried out under transition-metal-, additive-, solvent-free conditions, generating 1 equiv of dimethyl sulfoxide as byproduct tolerating a series functional groups.
Although the power conversion efficiency of perovskite solar cells has reached 25.5%, their long-term stability is still a barrier to commercialization. In this work, 1-methyl-3-(3′,3′,4′,4′,4′-pentafluorobutyl)imidazolium tetrafluoroborate (MFIM-2) ionic liquid and another two analogues were used as additives study interaction mechanism with FAPbI3 layer. The results reveal that MFIM-2 suppressed formation PbI2 crystals during crystallization, enlarged grain size, reduced defect density,...
Electrical characteristics of self-aligned top-gate (SATG) amorphous InGaZnO (a-IGZO) thin-film transistors (TFTs) with 4 nm-thick atomic-layer-deposited (ALD) AlO<sub>x</sub> gate insulator (GI) are investigated. It is demonstrated that the SATG a-IGZO TFTs present high-performance metrics including a near-ideal subthreshold swing (<i>SS</i>) 60.9 mV/dec, low off-state current below 10<sup>−12</sup> A, positive <inline-formula> <tex-math notation="LaTeX">${V}_{\text{th}}$...
To design catalysts with high performance on the heterogeneous catalysis fields has puzzled many scientists due to multifarious repeated experiments which takes most of their time. Herein, a multi‐factor and multi‐level experimental (M2ED) an artificial neural network (ANN) been performed optimize catalyst synthesis tactic. During process, 5 factors within one experiment was considered establish model pick out optimal condition. Excitingly, as‐synthesized according above strategy displays...
All-inorganic lead-free Cs3 Cu2 I5 perovskite-derivant quantum dots (QDs) have attracted tremendous attention due to their nontoxicity and unique optoelectronic properties. However, the traditional hot-injection method requires high temperatures multiple ligands confine growth of QDs. Herein, a strategy is reported spontaneously synthesize ultrasmall QDs within metal-organic-frameworks (MOFs) MOF-74 at room temperature (RT) with an average diameter 4.33 nm. The obtained exhibit evident...
In this letter, self-aligned top-gate (SATG) amorphous In-Ga-Zn-O (a-IGZO) thin-film transistors (TFTs) with an 8.62-nm SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> gate dielectric grown by conventional plasma enhanced chemical vapor deposition (PECVD) at 300 °C are fabricated. The results show that the ultrathin PECVD film has excellent properties, such as a low leakage current density of 10 <sup...
The toxicity of lead halide perovskites hinders their application in optoelectronics. Lead-free Cs 2 AgBiBr 6 is regarded as a promising candidate due to its excellent photoelectric properties.
We herein demonstrate a self-aligned top-gate (SATG) coplanar amorphous InGaZnO (a-IGZO) thin-film transistor (TFT) technology, with the gate length ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${L}_{\text {g}}$ </tex-math></inline-formula> ) down-scaled to 97 nm, and insulator (GI) AlOx 4 nm (equivalent oxide thickness = 2.4 nm). The fabricated TFT exhibits large on-current notation="LaTeX">${I}...
Magnesium (Mg)-induced metallization of amorphous indium-gallium-zinc-oxide (a-IGZO) films is investigated to develop a self-aligned (SA) top-gate (SATG) a-IGZO thin-film transistor (TFT) technology. The highconductive and SA source/drain (S/D) regions are well realized by short time sputtered deposition Mg onto the film on heated substrate, followed removal spare surface in hot water. It shown that resistivity lowered about 4 x 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Cs2AgBiBr6 having a double perovskite structure is expected to be used in nonlead and stable optoelectronic devices has received wide attention recently. At this stage, structures of using hybrid are the same. And energy band different, which will cause energy-level mismatch device with perovskite, turn seriously restrict further improvement performance. A strategy solve problem by constructing gradients poly(3-hexylthiophene) (P3HT)/MoO3/poly[bis(4-phenyl)(2,4,6-trimethylphenyl)-amine]...
All-inorganic lead halide perovskite CsPbI2Br is a promising candidate in the photovoltaic field due to its improved thermal stability and suitable band gap. However, phase of not stable under an ambient atmosphere because water vapor-induced transition. Most solar cells are manufactured gloveboxes avoid negative effect vapor, which would considerably increase cost large-scale manufacturing. Herein, we describe methylamine acetate (MAAc) additive strategy for two-step sequential deposition,...
Organic–inorganic hybrid perovskites and double are both perovskite materials that have attracted much attention recently due to their excellent photoelectric properties. Hybrid suitable band gaps but poor intrinsic stability. In contrast, a wide gap Therefore, we developed strategy modify hybrid-perovskite solar cells by utilizing double-perovskite (Cs2AgBi0.1In0.9Cl6) nanocrystals improve the stability of devices. We demonstrated this can effectively suppress nonradiative recombination,...