Gallium Nitride Semiconductors
A compound semiconductor material made from gallium and nitrogen, used in place of silicon where higher efficiency and heat tolerance are needed in power electronics.
Covered in 1 MetalsCost.com News Intelligence article, most recently on August 25, 2026.
Overview
Gallium nitride is a wide-bandgap semiconductor that, like silicon carbide, is increasingly displacing silicon in power electronics wherever higher efficiency, higher switching frequency or better heat tolerance are worth the extra material cost. Its wide bandgap lets it switch current on and off far faster than silicon with less energy lost as heat, which translates directly into smaller transformers, capacitors and heat sinks.
GaN vs. Silicon Carbide
GaN and silicon carbide (SiC) are often grouped together as the two leading wide-bandgap alternatives to silicon, but they occupy different niches. GaN's strength is switching speed and compactness, making it the material of choice for consumer fast chargers and data-center power supplies; SiC's strength is high-voltage robustness, which is why automakers lean on it for EV main traction inverters. The combined SiC and GaN power semiconductor market passed $2.24 billion in 2023 and is forecast to grow at roughly 25% a year through 2032.
Sources
- SiC/GaN power semiconductor market size and growth forecast — SiC and GaN Power Semiconductor Market Size Report - 2032 (2025)
