کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1265350 972216 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Integrated semiconductor optoelectronic devices for real-time and indicator-free detection of aqueous nitric oxide
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Integrated semiconductor optoelectronic devices for real-time and indicator-free detection of aqueous nitric oxide
چکیده انگلیسی

A real-time and indicator-free sensor specific to nitric oxide (NO) is realized for the first time by integrating a sensing hydrogel film, a top-emitting polymer light-emitting diode (PLED), and a silicon photodetector. The top-emitting PLED is utilized to excite the sensing film specific to NO, and the photoluminescence of the sensing film is transformed into electric signal by the photodetector. The influence of the excitation light on the out-put photocurrent of the photodetector is diminished by two delicately selected organic filters based on their absorption spectra. Lead phthalocyanine is deposited on a top-emitting PLED as a filter for generating an excitation light without overlapping the emission maximum of the sensing hydrogel film. Poly(3-hexylthiophene) is placed in front of the photodetector as another filter to remove the excitation light. This sensor demonstrated a fast photocurrent response to NO with response time within 5 min.

This device is an integrated device consisting of a sensing hydrogel film, a top-emitting polymer light-emitting diode, two organic filters, and a silicon photodectector.Figure optionsDownload as PowerPoint slideResearch highlights
► We realized a real-time and indicator-free sensor specific to nitric.
► The influence of the excitation on the out-put photocurrent is diminished by two organic filters.
► Fast response time of 5 s is achieved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 12, Issue 5, May 2011, Pages 751–755
نویسندگان
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