Perovskite Thermoplastic_polyurethane Hole Sidewall solar_cell dielectric_trench Singapore Polydimethylsiloxane StrontiumTitanate ScratchMode LiBattery thermal_conductivity LateralPFM Scratch Modulus 2-vinylpyridine Nanofiber Imprint Nanopattern Barium_titanate SThM block_copolymer Lateral Ito Solar DLaTGS MonoLayer polymeric_arrays CNT TiO2 Pinpoint PFM Ni-FeAlloy PhaseTransition IMT_Bucharest heterojunctions