Multicolour PbSe sensors for analytical applications

Sierra, C.; Torquemada, M. C.; Vergara, G.; Rodrigo, M. T.; Gutiérrez, Christopher; Pérez, Gloria; Génova, I.; Catalán, I.; Gomez, Luis J.; Villamayor, V.; Álvarez, M.; Fernández, D.; Magaz, Maria T.; Almazán, R.

doi:10.1016/j.snb.2013.08.094

Cited by 20 publications

(10 citation statements)

References 7 publications

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“…The same linear array was implemented into an hybrid device, which also includes four PbSe detectors, monolithically integrated with their corresponding interference filters, and working in the MWIR spectral range [6].…”

Section: Detector Arraymentioning

confidence: 99%

Chemical Warfare Agents Analyzer Based on Low Cost, Room Temperature, and Infrared Microbolometer Smart Sensors

Corsi

Dundee

Laurenzi

et al. 2012

Advances in Optical Technologies

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Advanced IR emitters and sensors are under development for high detection probability, low false alarm rate, and identification capability of toxic gases. One of the most reliable techniques to identify the gas species is absorption spectroscopy, especially in the medium infrared spectral range, where most of existing toxic compounds exhibit their strongest rotovibrational absorption bands. Following the results obtained from simulations and analysis of expected absorption spectra, a compact nondispersive infrared multispectral system has been designed and developed for security applications. It utilizes a few square millimeters thermal source, a novel design multipass cell, and a smart architecture microbolometric sensor array coupled to a linear variable spectral filter to perform toxic gases detection and identification. This is done by means of differential absorption spectroscopic measurements in the spectral range of the midinfrared. Experimental tests for sensitivity and selectivity have been done with various chemical agents (CAs) gases and a multiplicity of vapour organic compounds (VOCs). Detection capability down to ppm has been demonstrated.

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Section: Detector Arraymentioning

confidence: 99%

Chemical Warfare Agents Analyzer Based on Low Cost, Room Temperature, and Infrared Microbolometer Smart Sensors

Corsi

Dundee

Laurenzi

et al. 2012

Advances in Optical Technologies

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“…They also have great technological use in remote sensing [9], thermography [10], chemical gas sensing [11,12], gas spectroscopy, and pollution control [13,14]. Metal chalcogenide nanostructures have a range of extended applications to fabricate ideal infrared radiation detector devices, infrared radiation emitter devices, and solar control coatings [15,16]. Lead chalcogenides (PbSe, PbTe, PbS) are potent candidates for solid-state basic research due to their high-tech standings in the IR field and their exceptional features [17].…”

Section: Introductionmentioning

confidence: 99%

Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach

et al. 2021

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This research endeavor aimed to synthesize the lead (II) diphenyldiselenophosphinate complex and its use to obtain lead selenide nanostructured depositions and further the impedance spectroscopic analysis of these obtained PbSe nanostructures, to determine their roles in the electronics industry. The aerosol-assisted chemical vapor deposition technique was used to provide lead selenide deposition by decomposition of the complex at different temperatures using the glass substrates. The obtained films were revealed to be a pure cubic phase PbSe, as confirmed by X-ray diffraction analysis. SEM and TEM micrographs demonstrated three-dimensionally grown interlocked or aggregated nanocubes of the obtained PbSe. Characteristic dielectric measurements and the impedance spectroscopy analysis at room temperature were executed to evaluate PbSe properties over the frequency range of 100 Hz–5 MHz. The dielectric constant and dielectric loss gave similar trends, along with altering frequency, which was well explained by the Koops theory and Maxwell–Wagner theory. The effective short-range translational carrier hopping gave rise to an overdue remarkable increase in ac conductivity (σac) on the frequency increase. Fitting of a complex impedance plot was carried out with an equivalent circuit model (Rg Cg) (Rgb Qgb Cgb), which proved that grains, as well as grain boundaries, are responsible for the relaxation processes. The asymmetric depressed semicircle with the center lower to the impedance real axis provided a clear explanation of non-Debye dielectric behavior.

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“…Селенид свинца PbSe благодаря своим электрофизическим и фотоэлектрическим свойствам -один из наиболее востребованных материалов современной оптоэлектроники, тепловизионной техники, а также имеет широкие перспективы использования при создании квантовых точек, полупроводниковых лазеров, приборов аналитического контроля, теплоэлектрогенераторов и преобразователей солнечного излучения [1][2][3][4][5][6][7][8].…”

Section: Introductionunclassified

Влияние комплексной антиоксидантной добавки "сульфит натрия-аскорбиновая кислота" на состав, структуру и полупроводниковые свойства пленки PbSe

Маскаева¹,

Юрк²,

Марков³

et al. 2020

Физика Твердого Тела

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Приведены сравнительные экспериментальные данные по составу, кристаллической структуре, полупроводниковым и фотоэлектрическим свойствам пленок PbSe, осажденных в присутствии сульфита натрия Na2SO3 и комплексной антиоксидантной добавки "сульфит натрия-аскорбиновая кислота" с привлечением методов динамического рассеяния света, растровой электронной и атомно-силовой микроскопии. Установлены существенные изменения морфологии, элементного и фазового состава, периода кристаллической решетки пленок PbSe, синтезированных в присутствии антиоксидантов Na2SO3 и Na2SO3+С6Н8О6 до и после их термоактивации при 653 K. Показано что введение комплексной добавки по сравнению с Na2SO3 повышает однородность, формирующих слой частиц, уменьшает в ней микронапряжения, снижает с 0.349 до 0.308 eV величину термической запрещенной зоны и на 28-30% увеличивает вольт-ваттная чувствительность пленок. Ключевые слова: селенид свинца, тонкие пленки, гидрохимическое осаждение, аскорбиновая кислота, кристаллическая структура, ширина запрещенной зоны.

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Multicolour PbSe sensors for analytical applications

Cited by 20 publications

References 7 publications

Chemical Warfare Agents Analyzer Based on Low Cost, Room Temperature, and Infrared Microbolometer Smart Sensors

Chemical Warfare Agents Analyzer Based on Low Cost, Room Temperature, and Infrared Microbolometer Smart Sensors

Impedance Spectroscopy Analysis of PbSe Nanostructures Deposited by Aerosol Assisted Chemical Vapor Deposition Approach

Влияние комплексной антиоксидантной добавки "сульфит натрия-аскорбиновая кислота" на состав, структуру и полупроводниковые свойства пленки PbSe

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