Modulation bandwidth analysis of GaN-based micro-LED deduced by an equivalent circuit model.

We establish an equivalent circuit model of the GaN-based micro-LED system incorporating the parasitic parameters of the printed circuit board and bonding wires. Our deep analysis reveals that the parameters of intrinsic micro-LED significantly impact the modulation bandwidth of micro-LED. As the resistance and capacitance of micro-LED increases, the bandwidth of micro-LED decreases sharply.

White-Light GaN-μLEDs Employing Green/Red Perovskite Quantum Dots as Color Converters for Visible Light Communication.

GaN-based μLEDs with superior properties have enabled outstanding achievements in emerging micro-display, high-quality illumination, and communication applications, especially white-light visible light communication (WL-VLC). WL-VLC systems can simultaneously provide white-light solid-state lighting (SSL) while realizing high-speed wireless optical communication. However, the bandwidth of conventional white-light LEDs is limited by the long-lifetime yellow yttrium aluminum garnet (YAG) phosphor, which restricts the available communication performance.

Artificial Neurons Based on Ag/VC/W Threshold Switching Memristors.

Artificial synapses and neurons are two critical, fundamental bricks for constructing hardware neural networks. Owing to its high-density integration, outstanding nonlinearity, and modulated plasticity, memristors have attracted emerging attention on emulating biological synapses and neurons. However, fabricating a low-power and robust memristor-based artificial neuron without extra electrical components is still a challenge for brain-inspired systems.