Quantification of energy transfer processes from crystalline silicon to erbium

Abstract

Erbium-implanted silicon is considered as a promising system to realize electrically-pumped light sources at communication band due to the stable luminescence of Er ions at 1536nm. However, this system suffers...

Realization of 1.54‐µm Light‐Emitting Diodes Based on Er3+/Yb3+Co‐Doped CsPbCl3 Films

“…With the increasing of x value, the Yb 3+ 980 nm lifetimes gradually decrease and the Er 3+ 1.54-μm lifetimes gradually increase before x = 0.6 m, which further confirm the ET process from Yb 3+ to Er 3+ . In order to understand the underlying distributions of fluorescence decays, we used the stretch exponential decay function (Kohlrausch function) [50] to fit the TRPL of Er 3+ in Er 3+ / Yb 3+ co-doped system,…”

“…With the increasing of x value, the Yb 3+ 980 nm lifetimes gradually decrease and the Er 3+ 1.54‐µm lifetimes gradually increase before x = 0.6 m , which further confirm the ET process from Yb 3+ to Er 3+ . In order to understand the underlying distributions of fluorescence decays, we used the stretch exponential decay function (Kohlrausch function) [ 50 ] to fit the TRPL of Er 3+ in Er 3+ / Yb 3+ co‐doped system, $$$$\begin{equation}{I}_{\rm{t}} = {I}_0{\exp }^{\left( { - kt} \right)\beta }\end{equation}$$$$where I 0 is the steady‐state PL intensity and k is the effective PL decay rate. 0 < β < = 1.…”

Insight on the Energy Storage Mechanism and Kinetic Dynamic of Manganese Oxide‐Based Aqueous Zinc‐Ion Batteries

“…Though lithium batteries have occupied the commercial market, [9,10] the flammability of organic electrolytes, scarcity of lithium sources, and high costs have consistently plagued its development. [11][12][13][14] Thus, it is necessary to open up advanced devices possessing excellent energy storage performance, eco-friendly, high safety, and lowcost features. Among various focus energy storage device types, aqueous ion batteries (AIB), such as monovalent (Li + , Na + , K + , etc.…”