Results 31 to 40 of about 1,953,550 (296)

A Large Blue Shift of the Biexciton State in Tellurium Doped CdSe Colloidal Quantum Dots

, 2008
The exciton-exciton interaction energy of Tellurium doped CdSe colloidal quantum dots is experimentally investigated. The dots exhibit a strong Coulomb repulsion between the two excitons, which results in a huge measured biexciton blue shift of up to 300
Franzl T., Fujisawa J.-I., Klimov V. I., Klimov V. I., Nag A., Norris D. J., Norris D. J., Oron D., Oron D., Piryatinski A., Pradhan N., Pradhan N., Sungjee K., Woggon U., Zeng Q.   +14 more
core   +2 more sources

Role of Bi3+ ions on structural, optical, photoluminescence and electrical performance of Cd0.9-xZn0.1BixS QDs

SN Applied Sciences, 2021
In this work, the Cd0.9-xZn0.1BixS QDs with different compositions of Bi3+ ions (0 ≤ x ≤ 0.05) were synthesized using a facile chemical route. The prepared QDs were characterized for analyzing the structural, morphological, elemental, optical, band gap ...
A. Krishnamoorthy, P. Sakthivel, I. Devadoss, V. M. Anitha Rajathi   +3 more
doaj   +1 more source

Synthesis and Luminescence Modulation of Pyrazine-Based Gold(III) Pincer Complexes [PDF]

, 2015
The first examples of pyrazine-based gold(III) pincer complexes have been synthesized; their intense photoemissions can be modified by interactions with the non-coordinating pyrazine-N atom.
Au, Benoît Bertrand, Bronner, Cheng, Coles, Culham, Garth A. Jones, Julio Fernandez-Cestau, Kozhevnikov, Krylova, Lancaster, Lanë, Leitl, Manfred Bochmann, Maria Blaya, Marion, Roşca, Roşca, Roşca, Roşca, Savjani, Soscún Machado, Tang, Tao, Thomas J. Penfold, To, To, Walker, Walker, Wong, Wu, Yam, Yersin   +32 more
core   +1 more source

Red shift, blue shift: investigating Doppler shifts, blubber thickness, and migration as explanations of seasonal variation in the tonality of Antarctic blue whale song. [PDF]

PLoS ONE, 2014
The song of Antarctic blue whales (Balaenoptera musculus intermedia) comprises repeated, stereotyped, low-frequency calls. Measurements of these calls from recordings spanning many years have revealed a long-term linear decline as well as an intra-annual
Brian S Miller, Russell Leaper, Susannah Calderan, Jason Gedamke   +3 more
doaj   +1 more source

Soliton blue-shift in tapered photonic crystal fiber

, 2010
We show that solitons undergo a strong blue shift in fibers with a dispersion landscape that varies along the direction of propagation. The experiments are based on a small-core photonic crystal fiber, tapered to have a core diameter that varies ...
A. Podlipensky, A. W. Snyder, G. P. Agrawal, L. F. Mollenauer, P. St. J. Russell, S. P. Stark   +5 more
core   +1 more source

Effect of BaO Content on the Photoluminescence Properties of Mn²⁺ and Eu²⁺-Codoped Sr_3−xBa_xMgSi₂O₈ Phosphors

Inorganics
In this study, Mn2+ and Eu2+-codoped Sr3−xBaxMgSi2O8 (x = 0–1.5) phosphors were synthesized at 1400 °C under a reducing atmosphere composed of 5% H2 and 95% N2 to produce materials with blue light emission.
Shu-Han Liao, Fang-Tzu Hsu, Cheng-Fu Yang, Kao-Wei Min   +3 more
doaj   +1 more source

Blue shift of CdSe/ZnS nanocrystal-labels upon DNA-hybridization

Journal of Nanobiotechnology, 2008
Luminescence color multiplexing is one of the most intriguing benefits, which might occur by using semiconductor Quantum Dots (QDs) as labels for biomolecules.
Palme Klaus, Ditengou Franck, Riegler Jürgen, Nann Thomas   +3 more
doaj   +1 more source

Sand-Dust Image Restoration Based on Reversing the Blue Channel Prior

IEEE Photonics Journal, 2020
Images acquired under sand-dust weather conditions are severely degraded, with low contrast and severe color shift. The reason is that, due to the influence of sand-dust particles, light is scattered and absorbed, resulting in a blurred image and low ...
GuXue Gao, HuiCheng Lai, ZhenHong Jia, YueQin Liu, YaLi Wang   +4 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Improving Peak-Wavelength Method to Measure Junction Temperature by Dual-Wavelength LEDs

IEEE Access, 2017
In this paper, the improvement of the method measuring the junction temperature of lightemitting diodes (LEDs) has been studied experimentally. A practical method is proposed with only three measurement procedures.
Yukun Zhao, Feng Yun, Lungang Feng, Shuai Wang, Yufeng Li, Xilin Su, Maofeng Guo, Wen Ding, Ye Zhang   +8 more
doaj   +1 more source