Despite its advantages, T-NIL also faces several challenges:
Mold Fabrication: Creating high-quality molds with nanoscale features can be complex and time-consuming. Material Selection: Finding suitable thermoplastic materials that can precisely replicate the mold's features and withstand repeated imprinting cycles is crucial. Defect Control: Ensuring uniformity and minimizing defects during the imprinting process is essential for achieving high-quality patterns. Mold Wear: Repeated use of molds can lead to wear and degradation, affecting the quality of the imprints.