Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 6, Pages 5580-5589Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b14662
Keywords
reactive multilayer films; microelectromechanical systems; magnetron sputtering; aluminum/molybdenum trioxide; energetic semiconductor bridge
Funding
- National Natural Science Foundation [U1230115]
- Ordinary University Graduate Student Scientific Research Innovation Projects of Jiangsu Province [KYLX15_0351]
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Reactive multilayer films (RMFs) can be integrated into semiconducting electronic structures with the use of microelectromechanical systems (MEMS) technology and represent potential applications in the advancement of microscale energy-demanding systems. In this study, aluminum/molybdenum trioxide (Al/MoO3)-based RMFs with different modulation periods were integrated on a semiconductor bridge (SCB) using a combination of an image reversal lift-off process and magnetron sputtering technology. This produced an energetic semiconductor bridge (ESCB)-chip initiator with controlled ignition performance. The effects of the Al/MoO3 RMFs with different modulation periods on ignition properties of the ESCB initiator were then systematically investigated in terms of flame duration, maximum flame area, and the reaction ratio of the RMFs. These microchip initiators achieved flame durations of 60-600 mu s, maximum flame areas of 2.85-17.61 mm(2), and reaction ratios of similar to 14-100% (discharged with 47 mu E/30 V) by simply changing,the modulation periods of the Al/MoO3 RMFs. This behavior was also consistent with a one-dimensional diffusion reaction model. The microchip initiator exhibited a high level of integration and proved to have tuned ignition performance, which can potentially be used in civilian and military applications.
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