Spin-crossover in an organic–inorganic hybrid perovskite

2020 ◽  
Vol 56 (33) ◽  
pp. 4551-4554 ◽  
Author(s):  
Wei-Wei Wu ◽  
Si-Guo Wu ◽  
Yan-Cong Chen ◽  
Guo-Zhang Huang ◽  
Bang-Heng Lyu ◽  
...  
Keyword(s):  
Spin State ◽  
Perovskite Structure ◽  
Spin Crossover ◽  
Fluorescence Properties ◽  
Inorganic Hybrid ◽  
State Dependent ◽  
Hybrid Perovskite

The first spin-crossover complex with an organic–inorganic hybrid perovskite structure is reported, which displays three-step spin-crossover, light-induced excited spin-state trapping and spin-state dependent fluorescence properties.

scholarly journals Spin-state-dependent electrical conductivity in single-walled carbon nanotubes encapsulating spin-crossover molecules

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Julia Villalva ◽  
Aysegul Develioglu ◽  
Nicolas Montenegro-Pohlhammer ◽  
Rocío Sánchez-de-Armas ◽  
Arturo Gamonal ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Spin State ◽  
Spin Crossover ◽  
Single Walled Carbon Nanotubes ◽  
Guest Molecules ◽  
Spintronic Devices ◽  
Single Walled Carbon ◽  
State Dependent ◽  
Lack Of Control ◽  
Walled Carbon Nanotubes

AbstractSpin crossover (SCO) molecules are promising nanoscale magnetic switches due to their ability to modify their spin state under several stimuli. However, SCO systems face several bottlenecks when downscaling into nanoscale spintronic devices: their instability at the nanoscale, their insulating character and the lack of control when positioning nanocrystals in nanodevices. Here we show the encapsulation of robust Fe-based SCO molecules within the 1D cavities of single-walled carbon nanotubes (SWCNT). We find that the SCO mechanism endures encapsulation and positioning of individual heterostructures in nanoscale transistors. The SCO switch in the guest molecules triggers a large conductance bistability through the host SWCNT. Moreover, the SCO transition shifts to higher temperatures and displays hysteresis cycles, and thus memory effect, not present in crystalline samples. Our results demonstrate how encapsulation in SWCNTs provides the backbone for the readout and positioning of SCO molecules into nanodevices, and can also help to tune their magnetic properties at the nanoscale.

Reversible solid-state thermochromism of a 2D organic–inorganic hybrid perovskite structure based on iodoplumbate and 2-aminomethyl-pyridine

2017 ◽  
Vol 41 (18) ◽  
pp. 9586-9589 ◽  
Author(s):  
Hui Yu ◽  
ZhenHong Wei ◽  
YanHuan Hao ◽  
ZhiWen Liang ◽  
ZhengJiang Fu ◽  
...  
Keyword(s):  
Solid State ◽  
Perovskite Structure ◽  
Color Change ◽  
Inorganic Layer ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

An organic–inorganic hybrid solid [(PyCH2NH3)6][Pb5I22]·3H2O with a 2D inorganic layer exhibited a reversible color change from orange to red at 80 °C in the solid state.

scholarly journals Spin-state dependent conductance switching in single molecule-graphene junctions

Nanoscale ◽  
2018 ◽  
Vol 10 (17) ◽  
pp. 7905-7911 ◽  
Author(s):  
Enrique Burzurí ◽  
Amador García-Fuente ◽  
Victor García-Suárez ◽  
Kuppusamy Senthil Kumar ◽  
Mario Ruben ◽  
...  
Keyword(s):  
Spin State ◽  
Single Molecule ◽  
Spin Crossover ◽  
Electrical Current ◽  
Conductance Switching ◽  
State Dependent

Spin-crossover (SCO) switching of individual molecules connected to graphene electrodes is detected in the electrical current.

Slow spin crossover in bis-meridional Fe2+ complexes through spin-state auto-adaptive N6/N8 coordination

2018 ◽  
Vol 47 (48) ◽  
pp. 17257-17265 ◽  
Author(s):  
Holm Petzold ◽  
Gerald Hörner ◽  
Linda Schnaubelt ◽  
Tobias Rüffer
Keyword(s):  
Coordination Number ◽  
High Spin ◽  
Spin State ◽  
Spin Crossover ◽  
High Spin State ◽  
State Dependent ◽  
Thermodynamic Stabilization

The X-factor: Exchange of pyridine (X = N) for phenyl (X = CH) substituents renders the coordination number of Fe2+ complexes spin-state dependent. Slow spin-state exchange emerges through kinetic and thermodynamic stabilization of the N6(+2) high-spin state.

Nanochemical Investigation of Degradation in Organic–Inorganic Hybrid Perovskite Films Using Infrared Nanoscopy

2020 ◽  
Vol 124 (6) ◽  
pp. 3915-3922 ◽  
Author(s):  
Hyang Mi Yu ◽  
Hye Min Oh ◽  
Dae Young Park ◽  
Mun Seok Jeong
Keyword(s):  
Inorganic Hybrid ◽  
Hybrid Perovskite

Influence of ligand substituent conformation on the spin state of an iron(ii)/di(pyrazol-1-yl)pyridine complex

2021 ◽  
Vol 50 (10) ◽  
pp. 3464-3467
Author(s):  
Rafal Kulmaczewski ◽  
Mark J. Howard ◽  
Malcolm A. Halcrow
Keyword(s):  
Spin State ◽  
Spin Crossover ◽  
Solution Phase ◽  
Pyridine Complex

The temperature of the solution-phase spin-crossover equilibrium in iron(ii) complexes of 4-alkylsulfanyl-2,6-di{pyrazol-1-yl}pyridine (bppSR) complexes depends strongly on the alkylsulfanyl substituent.

Ferroelastic domains and phase transitions in organic–inorganic hybrid perovskite CH3NH3PbBr3

2021 ◽  
Author(s):  
Maryam Bari ◽  
Alexei A. Bokov ◽  
Zuo-Guang Ye
Keyword(s):  
Phase Transitions ◽  
Electric Field ◽  
Light Microscopy ◽  
Domain Structure ◽  
Polarized Light ◽  
External Stress ◽  
Polarized Light Microscopy ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Ferroelastic Domains

Polarized light microscopy reveals twin domains and symmetry of the phases in CH3NH3PbBr3 crystal; domain structure remains unresponsive to electric field but changes under external stress, confirming ferroelasticity while ruling out ferroelectricity.

Stability of organic-inorganic hybrid perovskite quasi-2D structures by modulation of alkylammonium ions

2020 ◽  
Vol 707 (1) ◽  
pp. 140-146
Author(s):  
Juho Kim ◽  
Do Quyen ◽  
Wook Ahn ◽  
Tae-Dong Kim ◽  
Namchul Cho
Keyword(s):  
Inorganic Hybrid ◽  
Hybrid Perovskite

Laser Crystallization of Organic–Inorganic Hybrid Perovskite Solar Cells

ACS Nano ◽  
2016 ◽  
Vol 10 (8) ◽  
pp. 7907-7914 ◽  
Author(s):  
Taewoo Jeon ◽  
Hyeong Min Jin ◽  
Seung Hyun Lee ◽  
Ju Min Lee ◽  
Hyung Il Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Laser Crystallization ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite
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