Infrared emission spectroscopy of YO in the laser ablation deposition process of YBa2Cu3O7−δ thin films

✍ Scribed by E. Aharoni; G. Koren; U.P. Oppenheim

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 335 KB
• Volume: 171
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(90)90453-l

✦ Synopsis

Plume emission spectra in the infrared are reported under the conditions of laser ablation deposition of YBa2Cu307 thin films at the location of the substrates. Two prominent emission peaks of YO at 700 and 815 cm-~ were observed which correspond to the P and R branches of the electronically excited A states. No observable contribution to the infrared emission from the electronic ground state was found. It is suggested that the massive presence of electronically excited fragments at the surface of the growing film facilitates the in situ film deposition at substrate temperatures of ~ 700°C which are significantly lower than the temperatures needed in post-annealed films ( ~ 900 °C).