Nanoscale Advances, Journal Year: 2024, Volume and Issue: 6(16), P. 4137 - 4148
Published: Jan. 1, 2024
Over more than a decade, lead halide perovskites (LHPs) have been popular as next-generation semiconductor for optoelectronics.
Language: Английский
Materials Horizons, Journal Year: 2024, Volume and Issue: 11(22), P. 5499 - 5532
Published: Jan. 1, 2024
High-performance perovskite materials with excellent physical, electronic, and optical properties play a significant role in artificial neuromorphic devices. However, the development of perovskites microelectronics is inevitably hindered by their intrinsic non-ideal properties, such as high defect density, environmental sensitivity, toxicity. By leveraging engineering, integrating various to leverage mutual strengths presents great potential enhance ion migration, energy level alignment, photoresponsivity, surface passivation, thereby advancing optoelectronic device development. This review initially provides an overview across different dimensions, highlighting physical detailing applications metrics two- three-terminal Subsequently, we comprehensively summarize application combination other materials, including organics, nanomaterials, oxides, ferroelectrics, crystalline porous (CPMs), develop advanced devices memristors, transistors, photodetectors, sensors, light-emitting diodes (LEDs), systems. Lastly, outline challenges future research directions synthesizing composites for Through analysis, aim broaden utilization research, offering new insights approaches grasping intricate working mechanisms functionalities perovskites.
Language: Английский
Citations
5
Materials, Journal Year: 2025, Volume and Issue: 18(7), P. 1518 - 1518
Published: March 28, 2025
Metal halide perovskite nanorods hold great promise for optoelectronic applications. However, they tend to undergo phase transitions due the instability of crystal under environmental conditions, leading a rapid decline in fluorescence efficiency. Here, we report method which trioctylphosphine (TOP) directly serves as both surface ligand and solvent synthesize highly stable α-CsPbI3 (NRs). This approach produces monodisperse α-phase NRs with controlled sizes (1 μm 150 nm length, an aspect ratio 10:1), confirmed by high-resolution transmission electron microscopy (TEM) X-ray diffraction. The optimized exhibit high photoluminescence quantum yield around 80%, well excellent stability; after 15 days storage, (PLQY) retention is 90%. Transient absorption spectroscopy shows that carrier lifetime extended 23.95 ns 27.86 ns, attributed dual role TOP defect passivation hydrolysis suppression. work provides scalable paradigm stabilizing metastable nanostructures through rational selection, paving way durable perovskite-based optoelectronics.
Language: Английский
Citations
0
RSC Advances, Journal Year: 2025, Volume and Issue: 15(5), P. 3562 - 3569
Published: Jan. 1, 2025
Exposure to ammonia vapors on CsPbBr 3 -coated substrates results in the widening of a semiconductor's bandgap, which is reversible with time. The intercalation NH -induced strain origins bandgap widening.
Language: Английский
Citations
0
The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: 129(9), P. 4747 - 4756
Published: Feb. 21, 2025
Mixed-halide three-dimensional perovskites have been extensively studied due to their ability exhibit continuously tunable emissions in the visible spectrum accompanied by spectral broadening. However, understanding relationship between characteristics of mixed-halide and distribution halogens at individual octahedral levels remains a significant challenge. This study successfully realized single-layer (A2PbI2Cl2) (A = C12H25NH3+) with uniform Pb octahedra employing mechanochemical strategies. The absorption spectra prepared samples exhibited constant peak 476 nm under different balling times, indicating formation product. Structural characterization is further elucidated X-ray photoelectron spectroscopy measurements corroborated diffraction results. Similarly, mixed-halides A2PbI2Br2 A2PbI2SCN2, exhibiting constantly 450 523 nm, respectively, during reaction, were obtained employment via this synthetic technique. versatility strategy was demonstrated synthesizing A2′PbI2Cl2 substituting primary amine salt quaternary ammonium (A′ C15H34N+). Ultimately, these mixed halides emission ranging from 340 530 varying both halogen composition/distribution within octahedral. atomic-scale insight lays foundation for investigations optoelectronic properties perovskites.
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(11), P. 17026 - 17035
Published: March 5, 2025
Reducing the detachment of ligands on all-inorganic cesium lead bromide perovskite quantum dots (CsPbBr3 PQDs) presents a significant challenge to their practical applications, despite remarkable optoelectronic properties. Herein, novel strategy was introduced passivate surface defects CsPbBr3 PQDs by employing short-chain and functional groups within polymer matrix enhance processability. Guanidinopropanoic acid (GPA) employed as coligand alongside oleic oleylamine synthesize CsPbBr3-GPA via hot injection method. A nitrogen-containing, superhydrophobic mesoporous polymer, poly(divinylbenzene)-vinylimidazole (PDVB-Vim), utilized an innovative encapsulation material for PQDs, resulting in formation CsPbBr3-GPA@PDVB-Vim composite. were successfully protected from unfavorable external stimulation, such water UV light, protective PDVB-Vim. retains over 76% its initial photoluminescence intensity after 31 days 68% 96 h continuous exposure 365 nm irradiation at 15 mW·cm-2. The screen printing with methyl methacrylate, butyl styrene demonstrates potential stable light conversion wearable devices. This breakthrough may pave way further advancements using highly photoluminescent luminescent textiles applications.
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: March 20, 2025
The integration of metal halide perovskite quantum dots (PQDs) into sensing technologies has been hindered by challenges in balancing environmental stability and sensitivity. In this work, mesoporous silica nanoparticles (MSNs) with tunable pore sizes were employed as nanoconfinement reactors to synthesize size-controlled CsPbBr3 PQDs (3.0-12.0 nm). nanoconfined environment facilitated the selective growth pure phases, avoiding unwanted Cs4PbBr6 formation. resulting PQDs, CsPbBr3@MSN, exhibited emission from blue green (470 515 nm), a high yield (36.8%), enhanced stability. Moreover, PQD composites demonstrated exceptional performance detecting pesticide dicloran, achieving detection limit 0.16 μM, far below China's national standard requirement (34.0 μM). mechanism involved competitive adsorption phase transitions cubic quasi-2D CsPb2Br5 phase. porous MSN structure maintained efficient mass energy transfer, ensuring both Beyond sensing, these nanocomposites show potential for applications anticounterfeiting fingerprint recognition. This study highlights powerful strategy developing robust, high-performance PQD-based fluorescent sensors.
Language: Английский
Citations
0
Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: March 25, 2025
The morphology of quantum dots plays an important role in governing their photophysics. Here, we explore the photoluminescence spheroidal CsPbBr3 synthesized via room-temperature trioctylphosphine oxide/PbBr2 method. Despite yields nearing 100%, these exhibit elongated red tail not observed typical cubic hot injection. We origins this through structural and optical characterization including small-angle X-ray scattering, transmission electron microscopy time-resolved, steady-state, single dot photoluminescence. From measurements conclude that originates from emissive traps. show treating with phenethylammonium bromide decreases line shape asymmetry increases passivation–consistent traps due to polar facets.
Language: Английский
Citations
0
ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
Language: Английский
Citations
0
Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111055 - 111055
Published: April 1, 2025
Language: Английский
Citations
0
Nature Synthesis, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 14, 2024
Language: Английский
Citations
3