کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
546550 1450485 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Porous silicon optical cavity structure applied to high sensitivity organic solvent sensor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سخت افزارها و معماری
پیش نمایش صفحه اول مقاله
Porous silicon optical cavity structure applied to high sensitivity organic solvent sensor
چکیده انگلیسی

The present work reports the thermal annealing process, the number of layer and electrochemical process effect in the optical response quality of Bragg and microcavity devices that were applied as organic solvent sensors. These devices have been obtained by using porous silicon (PS) technology. The optical characterization of the Bragg reflector, before annealing, showed a broad photonic band-gap structure with blue shifted and narrowed after annealing process. The electrochemical process used to obtain the PS-based device imposes the limit in the number of layers because of the chemical dissolution effect. The interface roughness minimizations in the devices have been achieved by using the double electrochemical cell setup. The microcavity devices showed to have a good sensibility for organic solvent detection. The thermal annealed device showed better sensibility feature and this result was attributed to passivation of the surface devices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronics Journal - Volume 39, Issues 3–4, March–April 2008, Pages 499–506
نویسندگان
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