scholarly journals Tailoring dye-sensitized upconversion nanoparticle excitation bands towards excitation wavelength selective imaging

Nanoscale ◽  
2015 ◽  
Vol 7 (44) ◽  
pp. 18424-18428 ◽  
Author(s):  
Xiang Wu ◽  
Hyungseok Lee ◽  
Osman Bilsel ◽  
Yuanwei Zhang ◽  
Zhanjun Li ◽  
...  
Keyword(s):  
Excitation Wavelength ◽  
Dye Sensitized ◽  
Nir Dye ◽  
Selective Security

A set of UCNPs that feature NIR dye characteristic excitation wavelengths were created for excitation wavelength selective security imaging.

scholarly journals Unsymmetrical Heptamethine Dyes for NIR Dye-Sensitized Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Thomas Geiger ◽  
Iuliia Schoger ◽  
Daniel Rentsch ◽  
Anna Christina Véron ◽  
Frédéric Oswald ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Solar Cell ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Nir Dye ◽  
Proof Of Principle

Seven unsymmetrical heptamethine dyes with carboxylic acid functionality were synthesized and characterized. These near-infrared dyes exhibit outstanding photophysical properties depending on their heterocyclic moieties and molecular structure. As proof of principle, the dyes were used as photosensitizers in dye-sensitized solar cells. Using the most promising dye, an overall conversion efficiency of 1.22% and an almost colorless solar cell were achieved.

Effect of excitation wavelength on electron injection efficiency in dye-sensitized nanocrystalline TiO2 and ZrO2 films

2006 ◽  
Vol 9 (5-6) ◽  
pp. 639-644 ◽  
Author(s):  
Ryuzi Katoh ◽  
Akihiro Furube ◽  
Miki Murai ◽  
Yoshiaki Tamaki ◽  
Kohjiro Hara ◽  
...  
Keyword(s):  
Electron Injection ◽  
Excitation Wavelength ◽  
Nanocrystalline Tio2 ◽  
Injection Efficiency ◽  
Dye Sensitized ◽  
Electron Injection Efficiency

Efficiency of Electron Injection in Dye-Sensitized Semiconductor Films

2010 ◽  
Vol 451 ◽  
pp. 79-95 ◽  
Author(s):  
Ryuzi Katoh ◽  
Akihiro Furube
Keyword(s):  
High Performance ◽  
Transient Absorption ◽  
Electron Injection ◽  
Transient Absorption Spectroscopy ◽  
Excitation Wavelength ◽  
Semiconductor Films ◽  
Nanocrystalline Films ◽  
Experimental Conditions ◽  
Nanocrystalline Tio2 ◽  
Dye Sensitized

The efficiency of electron injection (inj) in dye-sensitized nanocrystalline films has been studied by means of transient absorption spectroscopy. We observed inj of nearly unity for N3 dye adsorbed on nanocrystalline TiO2 films (N3/TiO2). We examined the effects of various experimental conditions, such as light intensity, excitation wavelength, and presence of additives (4-tert- butylpyridine, tBP and Li ions), on inj. We also used various semiconductors and sensitizer dyes to study the effect of free energy change (G) on inj. These results give us new insights for developing high-performance solar cell devices.

Dye-sensitized lanthanide-doped upconversion nanoparticles

2017 ◽  
Vol 46 (14) ◽  
pp. 4150-4167 ◽  
Author(s):  
Xindong Wang ◽  
Rashid R. Valiev ◽  
Tymish Y. Ohulchanskyy ◽  
Hans Ågren ◽  
Chunhui Yang ◽  
...  
Keyword(s):  
Excitation Wavelength ◽  
Upconversion Nanoparticles ◽  
Dye Sensitized ◽  
Optical Upconversion

Dye sensitized lanthanide upconversion entails optical upconversion with unprecedented luminescence brightness and broadband excitation wavelength.

Application of Atomic Layer Deposition in Dye-Sensitized Photoelectrosynthesis Cells

2021 ◽  
Vol 3 (1) ◽  
pp. 59-71
Author(s):  
Degao Wang ◽  
Qing Huang ◽  
Weiqun Shi ◽  
Wei You ◽  
Thomas J. Meyer
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Dye Sensitized ◽  
Layer Deposition
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