Despite their advantages, FEDs face several challenges that need to be addressed for widespread adoption:
Manufacturing Complexity: The precise placement and alignment of nanomaterials like CNTs require advanced fabrication techniques, which can be costly and complex. Material Stability: Ensuring the long-term stability and performance of the nanomaterials used in FEDs is crucial for their reliability. Cost: The current cost of high-quality nanomaterials and the sophisticated equipment required for their integration can make FEDs more expensive than existing technologies.