scholarly journals High-Stability Hybrid Organic-Inorganic Perovskite (CH3NH3PbBr3) in SiO2 Mesopores: Nonlinear Optics and Applications for Q-Switching Laser Operation

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1648
Author(s):  
Siyu Dong ◽  
Cheng Zhang ◽  
Yuxiang Zhou ◽  
Xiaona Miao ◽  
Tiantian Zong ◽  
...  
Keyword(s):  
High Stability ◽  
Room Temperature ◽  
Ultrafast Laser ◽  
Inorganic Perovskite ◽  
Two Photon ◽  
Saturation Intensity ◽  
Optical Responses ◽  
Nonlinear Responses ◽  
Lead Bromide ◽  
Q Switching

Hybrid organic-inorganic perovskite shows a great potential in the field of photoelectrics. Embedding methyl ammonium lead bromide (MAPbBr3) in a mesoporous silica (mSiO2) layer is an effective method for maintaining optical performance of MAPbBr3 at room temperature. In this work, we synthesized MAPbBr3 quantum dots, embedding them in the mSiO2 layer. The nonlinear optical responses of this composite thin film have been investigated by using the Z-scan technique at a wavelength of 800 nm. The results show plural nonlinear responses in different intensities, corresponding to one- and two-photon processing. Our results support that composites possess saturation intensity of ~27.29 GW/cm2 and varying nonlinear coefficients. The composite thin films show high stability under ultrafast laser irradiating. By employing the composite as a saturable absorber, a passively Q-switching laser has been achieved on a Nd:YVO4 all-solid-state laser platform to generate a laser at ~1 μm.

scholarly journals Anion exchange in inorganic perovskite nanocrystal polymer composites

2018 ◽  
Vol 9 (42) ◽  
pp. 8121-8126 ◽  
Author(s):  
Maria Sygletou ◽  
Maria-Eleni Kyriazi ◽  
Antonios G. Kanaras ◽  
Emmanuel Stratakis
Keyword(s):  
Polymer Composites ◽  
Anion Exchange ◽  
Polymer Matrix ◽  
Room Temperature ◽  
Low Cost ◽  
Inorganic Perovskite ◽  
Temperature Method ◽  
Lead Bromide

We demonstrate a facile, low-cost and room-temperature method of anion exchange in cesium lead bromide nanocrystals (CsPbBr3 NCs), embedded into a polymer matrix.

scholarly journals Mahan excitons in room-temperature methylammonium lead bromide perovskites

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Tania Palmieri ◽  
Edoardo Baldini ◽  
Alexander Steinhoff ◽  
Ana Akrap ◽  
Márton Kollár ◽  
...  
Keyword(s):  
Room Temperature ◽  
Lead Bromide

Room-Temperature Engineering of All-Inorganic Perovskite Nanocrsytals with Different Dimensionalities

2017 ◽  
Vol 29 (21) ◽  
pp. 8978-8982 ◽  
Author(s):  
Haoze Yang ◽  
Yuhai Zhang ◽  
Jun Pan ◽  
Jun Yin ◽  
Osman M. Bakr ◽  
...  
Keyword(s):  
Room Temperature ◽  
Inorganic Perovskite

A series of terpyridine-based zinc(ii) complexes assembled for third-order nonlinear optical responses in the near-infrared region and recognizing lipid membranes

2017 ◽  
Vol 5 (31) ◽  
pp. 6348-6355 ◽  
Author(s):  
Yiwen Tang ◽  
Ming Kong ◽  
Xiaohe Tian ◽  
Jinghang Wang ◽  
Qingyuan Xie ◽  
...  
Keyword(s):  
Lipid Membranes ◽  
Nonlinear Optical ◽  
Near Infrared ◽  
Infrared Region ◽  
Biological Imaging ◽  
Tissue Penetration ◽  
Third Order ◽  
Two Photon ◽  
Optical Responses ◽  
Near Infrared Region

Two-photon (TP) microscopy has advantages for biological imaging in that it allows deeper tissue-penetration and excellent resolution compared with one-photon (OP) microscopy.

Designing Alkalides with Considerable Nonlinear Optical Responses and High Stability Based on the Facially Polarized Janus all-cis-1,2,3,4,5,6-Hexafluorocyclohexane

2017 ◽  
Vol 36 (17) ◽  
pp. 3352-3359 ◽  
Author(s):  
Wei-Ming Sun ◽  
Bi-Lian Ni ◽  
Di Wu ◽  
Jian-Ming Lan ◽  
Chun-Yan Li ◽  
...  
Keyword(s):  
High Stability ◽  
Nonlinear Optical ◽  
Optical Responses

Room-Temperature Optical Tunability and Inhomogeneous Broadening in 2D-Layered Organic–Inorganic Perovskite Pseudobinary Alloys

2014 ◽  
Vol 5 (22) ◽  
pp. 3958-3963 ◽  
Author(s):  
Gaëtan Lanty ◽  
Khaoula Jemli ◽  
Yi Wei ◽  
Joël Leymarie ◽  
Jacky Even ◽  
...  
Keyword(s):  
Room Temperature ◽  
Inhomogeneous Broadening ◽  
Inorganic Perovskite

scholarly journals Near-Infrared-Excitable Organic Ultralong Phosphorescence through Multiphoton Absorption

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Ye Tao ◽  
Lele Tang ◽  
Qi Wei ◽  
Jibiao Jin ◽  
Wenbo Hu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Near Infrared ◽  
Emission Feature ◽  
Multiphoton Absorption ◽  
Triplet Excited State ◽  
Room Temperature Phosphorescence ◽  
Two Photon ◽  
Nir Light ◽  
Phosphorescence Quantum Yield ◽  
Novel Applications

Organic ultralong room-temperature phosphorescence (OURTP) with a long-lived triplet excited state up to several seconds has triggered widespread research interests, but most OURTP materials are excited by only ultraviolet (UV) or blue light owing to their unique stabilized triplet- and solid-state emission feature. Here, we demonstrate that near-infrared- (NIR-) excitable OURTP molecules can be rationally designed by implanting intra/intermolecular charge transfer (CT) characteristics into H-aggregation to stimulate the efficient nonlinear multiphoton absorption (MPA). The resultant upconverted MPA-OURTP show ultralong lifetimes over 0.42 s and a phosphorescence quantum yield of ~37% under both UV and NIR light irradiation. Empowered by the extraordinary MPA-OURTP, novel applications including two-photon bioimaging, visual laser power detection and excitation, and lifetime multiplexing encryption devices were successfully realized. These discoveries illustrate not only a delicate design map for the construction of NIR-excitable OURTP materials but also insightful guidance for exploring OURTP-based nonlinear optoelectronic properties and applications.

Room-temperature midinfrared two-photon photodetector

2008 ◽  
Vol 93 (10) ◽  
pp. 101114 ◽  
Author(s):  
H. Schneider ◽  
H. C. Liu ◽  
S. Winnerl ◽  
O. Drachenko ◽  
M. Helm ◽  
...  
Keyword(s):  
Room Temperature ◽  
Two Photon
Sign in / Sign up

Export Citation Format

Share Document