1 November 2009 Radiation resistance of a gamma-ray irradiated nonlinear optic chromophore
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Abstract
The radiation resistance of organic electro-optic and optoelectronic materials for space applications is receiving increased attention. An earlier investigation reported that guest-host poled polymer EO modulator devices composed of a phenyltetraene bridge-type chromophore in amorphous polycarbonate (CLD/APC) did not exhibit a decrease in EO response (i.e., an increase in modulation-switching voltage- ) following irradiation by low dose [10-160 krad(Si)] 60Co gamma-rays. To provide further evidences to the observed radiation stability, the post-irradiation responses of 60Co gamma-rays on CLD1/APC thin films are examined by various chemical and spectroscopic methods including: a solubility test, thin-layer chromatography, proton nuclear magnetic resonance spectroscopy, UV-vis absorption, and infra-red absorption. The results indicate that CLD1 and APC did not decompose under gamma-ray irradiation at dose levels ranging from 66-274 krad(Si) and from 61-154 krad(Si), respectively which support the previously reported data.
Cheng Zhang and Edward W. Taylor "Radiation resistance of a gamma-ray irradiated nonlinear optic chromophore," Journal of Nanophotonics 3(1), 031860 (1 November 2009). https://doi.org/10.1117/1.3272920
Published: 1 November 2009
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CITATIONS
Cited by 5 scholarly publications.
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KEYWORDS
Gamma radiation

Polymers

Resistance

Absorption

Chromophores

Chemical analysis

Electro optics

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