Titanium Self‐Intercalation in Titanium Diselenide Devices: Insights from In Situ Transmission Electron Microscopy

Fusion AX Publication Alert in Advanced Materials for Materials Science

Tuesday publication update! 📖 Researchers at National Yang Ming Chiao Tung University, Taiwan, used Fusion AX to uncover how applying electrical bias transforms the structure of 1T-TiSe₂, a promising material from the family of metallic transition metal dichalcogenides (MTMDCs). 🧪⚡

🔍 Using advanced transmission electron microscopy, they observed real-time phase transitions:

– Metallic 1T phase
– Distorted 1Td phase
– Conducting Ti₉Se₂ orthorhombic phase

Key findings:
✅ Structural changes drive shifts in electronic properties
✅ Titanium & selenium valence states evolve under bias
✅ Thicker films require higher voltage to switch phases

💡 Why it matters: Understanding these changes is crucial for designing future charge-density-wave (CDW) devices, potentially enabling faster, more efficient electronics.

Read the full publication here: https://www.doi.org/10.1002/adma.202418557

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