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Simple and Complex Logical Functions in a SiC Tandem Device

Abstract : In this study we demonstrate the basic AND, OR and NOT logical functions based on SiC technology. The device consists of a p-i’(a-SiC:H)-n/p-i(a-Si:H)-n heterostructure with low conductivity doped layers. Experimental optoelectronic characterization of the fabricated device shows the feasibility of tailoring channel bandwidth and wavelength by optical bias through illumination at the back and front sides. Results show that, front background enhances the light-to-dark sensitivity of the long and medium wavelength range and strongly quenches the others. Back violet background has the opposite behavior; it enhances the magnitude in short wavelength range and reduces it in the long ones. This nonlinearity provides the possibility for selective removal or addition of wavelengths.
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Vitor Silva, Manuel Vieira, Paula Louro, Manuel Barata, Manuela Vieira. Simple and Complex Logical Functions in a SiC Tandem Device. 5th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS), Apr 2014, Costa de Caparica, Portugal. pp.592-601, ⟨10.1007/978-3-642-54734-8_66⟩. ⟨hal-01274828⟩

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