Ⅲ-nitride nanostructures for optical gas detection and pH sensing

機譯：Ⅲ型氮化物納米結構，用于光學氣體檢測和pH傳感

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The paper presents a novel concept for the realization of optochemical sensor systems which are capable of operating in harsh environments. Key components in such sensors are nanostructures formed from gallium nitride (GaN) and its alloys with aluminum (Al) and indium (In). Nanostructures of this kind emit an efficient, visible-light photoluminescence (PL) which can be excited with low-cost ultraviolet light sources and which extends up to temperatures in the order of 200°C. When exposed to various chemical environments, changes in the PL intensity occur which constitute valuable sensor signals. Due to the all-optical approach, the PL can be excited and its chemically-induced changes be read out without requiring electrical wiring at the point of measurement. The present paper presents this innovative sensor concept, the nanostructures and optochemical transducer structures that form its material base, as well as several applications of such transducers in the fields of gas and fluid sensing. The applications addressed here range from the sensing of ppb concentrations of H_2, NO_2 and O_3 in gaseous environments to the pH monitoring in aqueous solutions.

機譯：本文提出了一種實現(xiàn)在惡劣環(huán)境下工作的光化學傳感器系統(tǒng)的新穎概念。這種傳感器的關鍵組件是由氮化鎵（GaN）及其與鋁（Al）和銦（In）的合金形成的納米結構。這種納米結構發(fā)出有效的可見光光致發(fā)光（PL），可以用低成本的紫外光源激發(fā)該發(fā)光體，并可以擴展到200°C左右的溫度。當暴露于各種化學環(huán)境中時，PL強度會發(fā)生變化，從而構成有價值的傳感器信號。由于采用了全光學方法，PL可以被激發(fā)，并且可以讀出其化學誘導的變化，而無需在測量點進行電氣布線。本文介紹了這種創(chuàng)新的傳感器概念，形成其材料基礎的納米結構和光化學換能器結構，以及此類換能器在氣體和流體傳感領域的幾種應用。此處涉及的應用范圍從在氣體環(huán)境中檢測H_2，NO_2和O_3的ppb濃度到水溶液中的pH監(jiān)測。

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來源
《Micro- and nanotechnology sensors, systems, and applications V ; Flexible electronics》|2013年|87250K.1-87250K.13|共13頁
會議地點 Baltimore MD(US)
作者
Sumit Paul; Konrad Maier; Aparna Das; Florian Furtmayr; Andreas Helwig; Jorg Teubert; Eva Monroy; Gerhard Mueller; Martin Eickhoff;
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作者單位

EADS Innovation Works, 81663 Munich, Germany;

EADS Innovation Works, 81663 Munich, Germany;

NAC,SP2M,NPSC, CEA-Grenoble, 38054 Grenoble;

I. Physikalisches Institut, Justus-Liebig- Universitat Giessen ,35392 Giessen, Germany;

EADS Innovation Works, 81663 Munich, Germany;

I. Physikalisches Institut, Justus-Liebig- Universitat Giessen ,35392 Giessen, Germany;

NAC,SP2M,NPSC, CEA-Grenoble, 38054 Grenoble;

EADS Innovation Works, 81663 Munich, Germany;

I. Physikalisches Institut, Justus-Liebig- Universitat Giessen ,35392 Giessen, Germany;

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原文格式 PDF
正文語種 eng
中圖分類
關鍵詞
Ⅲ-nitride semiconductors; nanowires; nano-heterostructures; quantum dots; photoluminescence; gas sensor; fluid sensor;

機譯：Ⅲ族氮化物半導體；納米線;納米異質(zhì)結構；量子點;光致發(fā)光氣體傳感器流體傳感器;

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1. Structural and optical characterization of mechanically milled Mg-TiO2 and nitrided Mg-TiOx-N-y nanostructures: Possible candidates for gas sensing application [J] . Bolokang A. S., Dhonge B. P., Swart H. C., Applied Surface Science . 2016,第jana1ptaB期

機譯：機械研磨的Mg-TiO2和氮化的Mg-TiOx-N-y納米結構的結構和光學表征：氣體傳感應用的可能候選者
2. Surface Morphology Effect on the Optical Properties of III-Nitrides Nanostructures for Photo-Sensing Applications [J] . S. M. Thahab Sensor Letters: A Journal Dedicated to all Aspects of Sensors in Science, Engineering, and Medicine . 2018,第1期

機譯：表面形態(tài)對光傳感應用III-氮化物納米結構的光學性質(zhì)
3. Comparative optical spectroscopy gallium-nitride and aluminum-nitride nanostructures of deposited onto silicon substrate [J] . Xiao Mufei Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic . 2016,第10期

機譯：比較光學光譜法沉積在硅襯底上的氮化鎵和氮化鋁納米結構
4. Ⅲ-nitride nanostructures for optical gas detection and pH sensing [C] . Sumit Paul, Konrad Maier, Aparna Das, Conference on micro- and nanotechnology sensors, systems, and applications V . 2013

機譯：Ⅲ-氮化物納米結構，用于光學氣體檢測和pH感測
5. Optical spectroscopy of wide-band-gap semiconductors: Raman and photoluminescence of gallium nitride, zinc oxide and their nanostructures . [D] . Wang, Dake. 2006

機譯：寬帶隙半導體的光譜學：氮化鎵，氧化鋅及其納米結構的拉曼光譜和光致發(fā)光。
6. Gallium Nitride (GaN) Nanostructures and Their Gas Sensing Properties: A Review [O] . Md Ashfaque Hossain Khan, Mulpuri V. Rao 2020

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Ⅲ-nitride nanostructures for optical gas detection and pH sensing

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