Advanced pulsed laser deposition method (eclipse angle)

Abstract

In spite of the advantage of droplet reduction in the pulsed laser deposition (PLD) process, eclipse PLD method has some drawbacks that activated growth species are also shielded by the shadow mask, and deposition rate decreases in low ambient pressure condition. In this study, we proposed new composite shadow mask method named 'eclipse angel PLD method' to overcome this problem. We directly observed the emitting plume propagating through the ring-mask structure and reaching the substrate by the ultra fast camera, and confirmed growth rate enhancement of YBa2Cu3Ox thin films in low ambient oxygen pressure region. Also, did we the effects of Ar addition when are of favor to improve the film qualities of Bi-layered crystals.