Efficient Sensitized Photoluminescence from Erbium Chloride Silicate via Interparticle Energy Transfer

Abstract

In this study, we prepare Erbium compound nanocrystals and Si nanocrystal (Si NC) co-embedded silica film by the sol-gel method. Dual phases of Si and Er chloride silicate (ECS) nanocrystals were coprecipitated within amorphous silica. Effective sensitized emission of Er chloride silicate nanocrystals was realized via interparticle energy transfer between silicon nanocrystal and Er chloride silicate nanocrystals. The influence of density and the distribution of sensitizers and Er compounds on interparticle energy transfer efficiency was discussed. The interparticle energy transfer between the semiconductor and erbium compound nanocrystals offers some important insights into the realization of efficient light emission for silicon-based integrated photonics.

Multiscale multiphase 3D printing of photonic devices and sensors for system health monitoring

“…Erbium emits at the mid-infrared wavelength of 1500 nm, the minimum loss window of silicon, which is used in telecommunications. Incorporating erbium in a material to create active microstructures is limited by its solubility and its low excitation crosssection due to the parity-forbidden intra 4f transitions 14 . Emission efficiency i.e., observed emission intensity as a function of pump power is directly proportional to the concentration of erbium.…”

Silver-Neodymium Codoped Lithium Aluminum Metaphosphate Glasses for Radio-Photoluminescence Dosimeter

“…Furthermore, we have removed water during glass melting to ensure that the non-radiative transition is not affected by the hydroxyl in the glass, as shown in Figure 5. The energy transfer efficiency is calculated according to the formula [40][41][42][43]:…”

Controllable Design of Minority Carrier Diffusion in npn Devices for Enhancing Er3+-Related Electroluminescence

“…However, cost-effective CMOS-compatible light sources are still hard to come by. Due to the stable luminescence in the ultraviolet to infrared bands, rare earth (RE) is frequently used in full-color displays, , phosphors, , and optical communication. − Among RE, erbium (Er) can emit photons at 1.54 μm through the intra-4f radiation transition from 4 I 13/2 to 4 I 15/2 , which is situated in the minimum-loss window of quartz fiber communication. − Because of this, optoelectronics will greatly benefit from the realization of the electroluminescence (EL) associated with Er 3+ ions. The thermionic collision mechanism is one of the effective ways to produce electroluminescence of Er 3+ ions at 1.54 μm. , Based on this mechanism, various light sources of Er 3+ ions have been developed, including Er-doped insulator devices, , reverse bias pn junction devices, , and electronic accelerator layer devices. − However, these Er-doped thermal electronic devices typically suffer from a high onset voltage issue that induces a strong electric field in certain areas of the device, greatly reducing the operating stability of the devices.…”