Applied Materials Today | ZEPTOOLS DMD Maskless Lithography System Assists in the Fabrication of High-Performance Heterojunction Photodetectors
Photodetectors are core components of optoelectronic systems, widely used in communications, imaging, and other fields. Among them, silicon-based detectors have long dominated due to their mature technology and high cost-effectiveness. However, the inherent bandgap of silicon materials limits their spectral response range, making it difficult to meet the demand for broadband detection in modern emerging technologies. In recent years, two-dimensional materials with excellent optoelectronic properties have stood out, and their van der Waals layered structure enables seamless integration with silicon, forming hybrid-dimensional heterojunctions without lattice mismatch limitations. Among them, molybdenum ditelluride (MoTe₂), with its rich phase transition characteristics and tunable electronic properties, has become an ideal material for constructing high-performance heterojunction detectors of this type.