Inverse-Tunable Red Luminescence and Electronic Properties of Nitridoberylloaluminates Sr Ba [BeAl N ]:Eu (x=0-2).

The nitridoberylloaluminate Ba [BeAl N ]:Eu and solid solutions Sr Ba [BeAl N ]:Eu (x=0.5, 1.0, 1.

Ultra-Narrow-Band Blue-Emitting Oxoberyllates AELi [Be O ]:Eu (AE=Sr,Ba) Paving the Way to Efficient RGB pc-LEDs.

Highly efficient phosphor-converted light-emitting diodes (pc-LEDs) are popular in lighting and high-tech electronics applications. The main goals of present LED research are increasing light quality, preserving color point stability and reducing energy consumption. For those purposes excellent phosphors in all spectral regions are required.

Sr[BeSi N ]:Eu /Ce and Eu[BeSi N ]: Nontypical Luminescence in Highly Condensed Nitridoberyllosilicates.

M[BeSi N ] (M=Sr,Eu), crystallizing in the hexagonal space group P6‾ 2c, was synthesized from Sr(NH ) , Be N , and "Si(NH) " in W crucibles under a N atmosphere in a radio-frequency furnace. The crystal structure was solved from powder X-ray diffraction data by the charge-flipping method (Sr[BeSi N ]: a=4.86082(2), c=9.

Narrow-band red-emitting Sr[LiAl₃N₄]:Eu²⁺ as a next-generation LED-phosphor material.

To facilitate the next generation of high-power white-light-emitting diodes (white LEDs), the discovery of more efficient red-emitting phosphor materials is essential. In this regard, the hardly explored compound class of nitridoaluminates affords a new material with superior luminescence properties. Doped with Eu(2+), Sr[LiAl3N4] emerged as a new high-performance narrow-band red-emitting phosphor material, which can efficiently be excited by GaN-based blue LEDs.

Labeling of anti-MUC-1 binding single chain Fv fragments to surface modified upconversion nanoparticles for an initial in vivo molecular imaging proof of principle approach.

In vivo optical Imaging is an inexpensive and highly sensitive modality to investigate and follow up diseases like breast cancer. However, fluorescence labels and specific tracers are still works in progress to bring this promising modality into the clinical day-to-day use. In this study an anti-MUC-1 binding single-chain antibody fragment was screened, produced and afterwards labeled with newly designed and surface modified NaYF(4):Yb,Er upconversion nanoparticles as fluorescence reporter constructs.