Deep-UV sensors based on SAW oscillators using low-temperature-grown AlN films on sapphires

High-quality epitaxial AlN films were deposited on sapphire substrates at low growth temperature using a helicon sputtering system. SAW filters fabricated on the AlN films exhibited excellent characteristics, with center frequency of 354.2 MHz, which corresponds to a phase velocity of 5667 m/s. An o...

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Veröffentlicht in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control. - 1986. - 58(2011), 8 vom: 19. Aug., Seite 1688-93
1. Verfasser: Laksana, Chipta (VerfasserIn)
Weitere Verfasser: Chen, Meei-Ru, Liang, Yen, Tzou, An-Jyeg, Kao, Hui-Ling, Jeng, Erik, Chen, Jyh, Chen, Hou-Guang, Jian, Sheng-Rui
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Schlagworte:Letter Research Support, Non-U.S. Gov't
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520 |a High-quality epitaxial AlN films were deposited on sapphire substrates at low growth temperature using a helicon sputtering system. SAW filters fabricated on the AlN films exhibited excellent characteristics, with center frequency of 354.2 MHz, which corresponds to a phase velocity of 5667 m/s. An oscillator fabricated using AlN-based SAW devices is presented and applied to deep-UV light detection. A frequency downshift of about 43 KHz was observed when the surface of SAW device was illuminated by a UV source with dominant wavelength of around 200 nm. The results indicate the feasibility of developing remote sensors for deep-UV measurement using AlN-based SAW oscillators 
650 4 |a Letter 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Chen, Meei-Ru  |e verfasserin  |4 aut 
700 1 |a Liang, Yen  |e verfasserin  |4 aut 
700 1 |a Tzou, An-Jyeg  |e verfasserin  |4 aut 
700 1 |a Kao, Hui-Ling  |e verfasserin  |4 aut 
700 1 |a Jeng, Erik  |e verfasserin  |4 aut 
700 1 |a Chen, Jyh  |e verfasserin  |4 aut 
700 1 |a Chen, Hou-Guang  |e verfasserin  |4 aut 
700 1 |a Jian, Sheng-Rui  |e verfasserin  |4 aut 
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