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A lithographically aligned palladium nanoribbon (Pd-NRB) array with gaps of less than 40 nm is fabricated on a PET substrate using the direct metal transfer method. The 200 μm Pd-NRB hydrogen gas sensor after bending treatment exhibits an unprecedented sensitivity of 109 % along with fast sensing behavior (80 % response time of 3.6 sec and 80 % recovery time of 8.7 sec) at room temperature.
"Palladium Nanoribbon Array for Fast Hydrogen Gas Sensing with Ultrahigh Sensitivity"
Yusin Pak, Namsoo Lim, Yogeenth Kumaresan, Ryeri Lee, Kihyeun Kim, Tae Heon Kim, Sang-Mook Kim, Jintae Kim, Heon Lee, Moon-Ho Ham, Gun-Young Jung, Adv. Mater., accepted (2015)
