The radiation induced conductivity (RIC) behaviors in nano-SiO2 deposited polyimide (PI) were investigated using the in situ measurement technique. The results indicate that, by comparison with the case of virgin polyimide, the RIC in nano-SiO2/polyimide shows low steady state values. Moreover, the steady state RIC is a power function of the dose rate with a power index of 0.659, lower than that of 0.76 in the virgin polyimide. The interfacial barrier and trapping effects are the main reasons for the change...
【英文摘要】
The radiation induced conductivity (RIC) behaviors in nano-SiO2 deposited polyimide (PI) were investigated using the in situ measurement technique. The results indicate that, by comparison with the case of virgin polyimide, the RIC in nano-SiO2/polyimide shows low steady state values. Moreover, the steady state RIC is a power function of the dose rate with a power index of 0.659, lower than that of 0.76 in the virgin polyimide. The interfacial barrier and trapping effects are the main reasons for the change...
【基金】
the National Natural Science Foundation of China(Grant No.51273052)
【更新日期】
2013-08-08
【分类号】
TB383.1
【正文快照】
1.IntroductionPolyimide(PI)is widely applied in spacecraft as thermalcontrol layers and isolators of many electronic devices dueto its excellent thermal stabilities and dielectric properties.[1]However,in the low Earth orbit(LEO),atomic oxygen(AO)is the m
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