Materials Horizons, Journal Year: 2023, Volume and Issue: 10(11), P. 5307 - 5312
Published: Jan. 1, 2023
Using a half substitution strategy, pair of 2D chiral hybrid perovskites with alternating spacers, ( R / S -phenylpropylamine)(pentylamine)PbBr 4 , are derived from an achiral (pentylamine) 2 PbBr for circularly polarized light detection.
Language: Английский
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(4), P. 1950 - 1991
Published: Feb. 16, 2024
Since the initial landmark study on chiral induced spin selectivity (CISS) effect in 1999, considerable experimental and theoretical efforts have been made to understand physical underpinnings mechanistic features of this interesting phenomenon. As first formulated, CISS refers innate ability materials act as filters for electron transport; however, more recent experiments demonstrate that displacement currents arising from charge polarization molecules lead without need net flow. With its identification a fundamental connection between symmetry materials, promises profound ubiquitous implications existing technologies new approaches answering age old questions, such homochiral nature life. This review begins with discussion different methods measuring then provides comprehensive overview known exhibit CISS-based phenomena before proceeding identify structure-property relations delineate leading models effect. Next, it identifies some physics, chemistry, biology. The ends critical assessment field comments future outlook.
Language: Английский
Citations
121
Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(41)
Published: Aug. 23, 2023
Due to the pronounced anisotropic response circularly polarized light, chiral hybrid organic-inorganic metal halides have been regarded as promising candidates for application in nonlinear chiroptics, especially second-harmonic generation circular dichroism (SHG-CD) effect. However, designing novel lead-free with large anisotropy factors and high laser-induced damage thresholds (LDT) of SHG-CD remains challenging. Herein, we develop first germanium halide, (R/S-NEA)3 Ge2 I7 ⋅H2 O (R/S-NGI), systematically investigated its linear chiroptical properties. S-NGI R-NGI exhibit (gSHG-CD ) 0.45 0.48, respectively, along a LDT 38.46 GW/cm2 ; these were highest values among reported halides. Moreover, effective second-order optical coefficient could reach up 0.86 pm/V, which was 2.9 times higher than that commercial Y-cut quartz. Our findings facilitate new avenue toward halides, their implementation applications.
Language: Английский
Citations
42
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(5), P. 2281 - 2326
Published: Feb. 29, 2024
Lead halide perovskites are extensively investigated as efficient solution-processable materials for photovoltaic applications. The greatest stability and performance of these compounds achieved by mixing different ions at all three sites the APbX
Language: Английский
Citations
37
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(50)
Published: Aug. 7, 2023
Abstract 2D chiral perovskite has greatly boosted the development of optoelectronic devices, ranging from nonlinear optics, spintronics, and ferroelectrics to energy harvesting devices. Despite circularly polarized light (CPL) detection based on been achieved, environmental humidity‐, ultraviolet (UV), temperature‐induced structural degradation its large electro‐phonon coupling restrict commercial application. Here, this study first realizes polymerized single‐crystal films by combining in situ cross‐linking polymerization with space‐confined crystallization method. Compared uncross‐linked perovskites, cross‐linked perovskites exhibit enhanced crystallinity lattice rigidity, yielding high‐performance photodetectors a maximum anisotropy factor 0.22, responsivity 1.6 A W −1 , detectivity 2.17 × 10 13 Jones. In addition, flexible extremely high mechanical stability are also realized originating polymer‐like behavior films. This opens up new avenues further enhance performance portable wearable devices perovskites.
Language: Английский
Citations
24
Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109904 - 109904
Published: June 22, 2024
Language: Английский
Citations
15
Green Chemistry, Journal Year: 2024, Volume and Issue: 26(9), P. 5347 - 5355
Published: Jan. 1, 2024
We investigate the proper green solvents for fabricating high performance formamidinium (FA)-based quasi-2D perovskites solar cells. find petroleum ether is a more suitable antisolvent perovskite crystallization than traditional used dibutyl ether.
Language: Английский
Citations
12
Nano Letters, Journal Year: 2024, Volume and Issue: 24(20), P. 6084 - 6091
Published: May 8, 2024
Chiral perovskites play a pivotal role in spintronics and optoelectronic systems attributed to their chiral-induced spin selectivity (CISS) effect. Specifically, they allow for spin-polarized charge transport light-emitting diodes (LEDs), yielding circularly polarized electroluminescence at room temperature without external magnetic fields. However, chiral lead bromide-based have yet achieve high-performance green emissive spin-LEDs, owing limited CISS effects transport. Herein, we employ dimensional regulation Sn2+-doping optimize perovskite architecture spin-LEDs. The optimized (PEA)x(S/R-PRDA)2–xSn0.1Pb0.9Br4 film exhibits an enhanced effect, higher hole mobility, better energy level alignment with the layer. These improvements us fabricate spin-LEDs quantum efficiency (EQE) of 5.7% asymmetry factor |gCP-EL| 1.1 × 10–3. This work highlights importance tailored architectures doping strategies advancing applications.
Language: Английский
Citations
12
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(21)
Published: March 28, 2024
Abstract The chiral organic–inorganic halide perovskites (OIHPs) are vital candidates for superior nonlinear optical (NLO) effects associated with circularly polarized (CP) light. NLO in materials often couples magnetic dipole (MD) transition, as well the conventional electric (ED) transition. However, importance of MD transition process OIHPs has not yet been recognized. Here, circular probe analysis second harmonic generation dichroism (SHG‐CD) provides direct evidence that contribution leads to a large anisotropic response CP lights OIHPs, (R‐/S‐MBACl) 2 PbI 4 . thin films exhibit great sensitivity over wide wavelength range, and g‐value reaches up 1.57 at where is maximized. Furthermore, it also effective light generator, outputting CP‐SHG maximum g‐factor 1.76 upon stimulation linearly This study deepens understanding relation between chirality magneto‐optical effect, such an efficient discrimination signal highly applicable chirality‐based sensor communication devices.
Language: Английский
Citations
10
Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 23, 2024
Photopyroelectric-based circularly polarized light (CPL) detection, coupling the pyro-phototronic effect and chiroptical phenomena, has provided a promising platform for high-performance CPL detectors. However, as novel detection strategy, photopyroelectric-based is currently restricted by short-wave optical response, underscoring urgent need to extend its response range. Herein, visible-to-near-infrared induced first realized in chiral-polar perovskites. Specifically, multilayered perovskites (S-BPEA)
Language: Английский
Citations
10
Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: 43, P. e01271 - e01271
Published: Jan. 31, 2025
Language: Английский
Citations
1