Lab on upconversion nanoparticles: optical properties and applications engineering via designed nanostructure

2015 ◽  
Vol 44 (6) ◽  
pp. 1346-1378 ◽  
Author(s):  
Xiaomin Li ◽  
Fan Zhang ◽  
Dongyuan Zhao
Keyword(s):  
Optical Properties ◽  
Recent Progress ◽  
Upconversion Nanoparticles

This review aims to summarize recent progress in optical properties and applications engineering of upconversion nanoparticles via the designed nanostructure.

Highly hydrophilic CaF2:Yb/Er upconversion nanoparticles: Structural, morphological, and optical properties

2021 ◽  
pp. 109820
Author(s):  
Anees A Ansari ◽  
Abdul K. Parchur ◽  
Joselito P. Labis ◽  
Muhammad Ali Shar ◽  
Aslam Khan
Keyword(s):  
Optical Properties ◽  
Upconversion Nanoparticles

Organic–inorganic hybrid lead halide perovskites for optoelectronic and electronic applications

2016 ◽  
Vol 45 (3) ◽  
pp. 655-689 ◽  
Author(s):  
Yixin Zhao ◽  
Kai Zhu
Keyword(s):  
Thin Film ◽  
Optical Properties ◽  
Recent Progress ◽  
Research Issues ◽  
Inorganic Hybrid ◽  
Halide Perovskites ◽  
Film Synthesis ◽  
Lead Halide

This article reviews recent progress on hybrid perovskites including crystal/thin-film synthesis, structural/chemical/electro-optical properties, (opto)electronic applications, and research issues/challenges.

scholarly journals Recent Studies of Semitransparent Solar Cells

Coatings ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 329 ◽  
Author(s):  
Dong Shin ◽  
Suk-Ho Choi
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
High Performance ◽  
Recent Progress ◽  
Cell Structure ◽  
Photovoltaic Cells ◽  
Perovskite Solar Cells ◽  
Photovoltaic Cell ◽  
Visual Comfort ◽  
Electrical And Optical Properties

It is necessary to develop semitransparent photovoltaic cell for increasing the energy density from sunlight, useful for harvesting solar energy through the windows and roofs of buildings and vehicles. Current semitransparent photovoltaics are mostly based on Si, but it is difficult to adjust the color transmitted through Si cells intrinsically for enhancing the visual comfort for human. Recent intensive studies on translucent polymer- and perovskite-based photovoltaic cells offer considerable opportunities to escape from Si-oriented photovoltaics because their electrical and optical properties can be easily controlled by adjusting the material composition. Here, we review recent progress in materials fabrication, design of cell structure, and device engineering/characterization for high-performance/semitransparent organic and perovskite solar cells, and discuss major problems to overcome for commercialization of these solar cells.

scholarly journals Synchronous polar winter starphotometry and lidar measurements at a High Arctic station

2015 ◽  
Vol 8 (9) ◽  
pp. 3789-3809 ◽  
Author(s):  
K. Baibakov ◽  
N. T. O'Neill ◽  
L. Ivanescu ◽  
T. J. Duck ◽  
C. Perro ◽  
...  
Keyword(s):  
Optical Properties ◽  
Aerosol Optical Depth ◽  
Research Laboratory ◽  
Recent Progress ◽  
High Arctic ◽  
Raman Lidar ◽  
Backscatter Coefficient ◽  
Atmospheric Research ◽  
Lidar Measurements ◽  
Fine Mode

Abstract. We present recent progress on nighttime retrievals of aerosol and cloud optical properties over the PEARL (Polar Environmental Atmospheric Research Laboratory) station at Eureka (Nunavut, Canada) in the High Arctic (80° N, 86° W). In the spring of 2011 and 2012, a star photometer was employed to acquire aerosol optical depth (AOD) data, while vertical aerosol and cloud backscatter profiles were measured using the CANDAC Raman Lidar (CRL). We used a simple backscatter coefficient threshold (βthr) to distinguish aerosols from clouds and, assuming that aerosols were largely fine mode (FM)/sub-micron, to distinguish FM aerosols from coarse mode (CM)/super-micron cloud or crystal particles. Using prescribed lidar ratios, we computed FM and CM AODs that were compared with analogous AODs estimated from spectral star photometry. We found (βthr dependent) coherences between the lidar and star photometer for both FM events and CM cloud and crystal events with averaged, FM absolute differences being

Bioapplications and biotechnologies of upconversion nanoparticle-based nanosensors

The Analyst ◽  
2016 ◽  
Vol 141 (12) ◽  
pp. 3601-3620 ◽  
Author(s):  
Chengli Wang ◽  
Xiaomin Li ◽  
Fan Zhang
Keyword(s):  
Optical Properties ◽  
High Resistance ◽  
Near Infrared ◽  
Signal To Noise Ratio ◽  
Upconversion Nanoparticles ◽  
Signal To Noise ◽  
Noise Ratio ◽  
Auto Fluorescence ◽  
New Generation ◽  
Narrow Emission

Upconversion nanoparticles (UCNPs), which can emit ultraviolet/visible (UV/Vis) light under near-infrared (NIR) excitation, are regarded as a new generation of nanoprobes because of their unique optical properties, including a virtually zero auto-fluorescence background for the improved signal-to-noise ratio, narrow emission bandwidths and high resistance to photo-bleaching.

scholarly journals Recent advances in the synthesis and application of Yb-based fluoride upconversion nanoparticles

2020 ◽  
Vol 7 (5) ◽  
pp. 1067-1081 ◽  
Author(s):  
Bing Chen ◽  
Feng Wang
Keyword(s):  
Recent Progress ◽  
Upconversion Nanoparticles ◽  
Recent Advances

This review focuses on recent progress in the development of Yb-based upconversion nanoparticles and their emerging technological applications.

scholarly journals Upconversion nanoparticle as a theranostic agent for tumor imaging and therapy

2016 ◽  
Vol 09 (04) ◽  
pp. 1630006 ◽  
Author(s):  
Wenkai Fang ◽  
Yanchun Wei
Keyword(s):  
Optical Properties ◽  
Tumor Imaging ◽  
Promising Material ◽  
Upconversion Nanoparticles ◽  
Multiphoton Absorption ◽  
Long Wavelength ◽  
Visible Wavelength ◽  
Theranostic Agent ◽  
Challenges And Opportunities ◽  
Wavelength Light

Upconversion nanoparticles (UCNPs) as a promising material are widely studied due to their unique optical properties. The material can be excited by long wavelength light and emit visible wavelength light through multiphoton absorption. This property makes the particles highly attractive candidates for bioimaging and therapy application. This review aims at summarizing the synthesis and modification of UCNPs, especially the applications of UCNPs as a theranostic agent for tumor imaging and therapy. The biocompatibility and toxicity of UCNPs are also further discussed. Finally, we discuss the challenges and opportunities in the development of UCNP-based nanoplatforms for tumor imaging and therapy.

scholarly journals Advances in quantum light emission from 2D materials

Nanophotonics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 2017-2032 ◽  
Author(s):  
Chitraleema Chakraborty ◽  
Nick Vamivakas ◽  
Dirk Englund
Keyword(s):  
Optical Properties ◽  
Binding Energy ◽  
Momentum Space ◽  
Recent Progress ◽  
Light Emission ◽  
2D Materials ◽  
Two Dimensional ◽  
Theoretical Understanding ◽  
Practical Applications ◽  
Spin Properties

AbstractTwo-dimensional (2D) materials are being actively researched due to their exotic electronic and optical properties, including a layer-dependent bandgap, a strong exciton binding energy, and a direct optical access to electron valley index in momentum space. Recently, it was discovered that 2D materials with bandgaps could host quantum emitters with exceptional brightness, spectral tunability, and, in some cases, also spin properties. This review considers the recent progress in the experimental and theoretical understanding of these localized defect-like emitters in a variety of 2D materials as well as the future advantages and challenges on the path toward practical applications.

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