India gallium_nitride Pzt silicon_carbide Dr.JurekSadowski KevlarFiber Piezoelectric heterojunctions light_emitting alkanes Conductivity BreastCancerCell nanobar Pvdf Carbon PvdfBead PatternedSapphireSubstrat Current Sapphire LiftMode self-assembly SiWafer Yeditepe_University Alloy Perovskite Annealing MonoLayer Nanofiber C36H74 STO hetero_structure Formamidinium_lead_iodide GranadaUniv AtomicLayer Hair