Attempts of Homo p-n Junction Formation in ZnS by Impurity Co-Doping with Vapor Phase Epitaxy

Kishimoto, S; Kato, Akihisa; Naito, Atsushi; Sakamoto, Yoshiki; Iida, S.

doi:10.1002/1521-3951(200201)229:1<391::aid-pssb391>3.0.co;2-k

Cited by 23 publications

(16 citation statements)

References 8 publications

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“…The working oscillation frequencies of QCM crystal are between 7.995 MHz and 7.950 MHz. The density ( ) of the crystal is 2.684 g/cm 3 , and the shear modulus ( ) of quartz is 2.947 × 10 11 g/cm s 2 . A net change of 1 Hz corresponds to 1.34 ng of materials adsorbed or desorbed onto the crystal surface of an area of 0.196 cm 2 .…”

Section: Humidity Sensing Capabilities Of Zns Nanowires Using Qcm Tecmentioning

confidence: 99%

“…The physical and the chemical properties of materials can be tuned and manipulated with changing the dimension of materials. These all reasons increase sensivity and performance of materials as sensor against the humidity and gases [2,3]. Especially, sensing of humidity is an important quantity to control in many manufacturing environments such as food, automotive, electronics and agriculture industries.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of humidity sensing properties of ZnS nanowires synthesized by vapor liquid solid (VLS) technique

Üzar

Okur

Arıkan

2011

Sensors and Actuators A: Physical

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a b s t r a c tZinc sulfide (ZnS) nanostructures were synthesized by vapor-liquid-solid (VLS) method which is based on thermal evaporation. The morphology, chemical composition and crystal structure of ZnS nanostructures were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analyses. The results of these studies revealed that wurtzite ZnS nanowires with diameters in range of 50-400 nm are obtained. In order to investigate the humidity sensing capability, quartz crystal microbalance (QCM) and electrical resistance measurement techniques were carried out at different relative humidity (RH) conditions between 33% and 100% RH at room temperature. QCM results show that the oscillating frequency of ZnS nanowires loaded on QCM crystal decreases in range of 33-84% RH, but increases at 90% and 100% RH. The sensitivity of ZnS nanowires-based sensor (R air /R RH ) increases over 1000 times from 33% to 100% RH. These experimental results show that ZnS nanowires have a great potential for humidity sensing applications at room temperature.

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Section: Humidity Sensing Capabilities Of Zns Nanowires Using Qcm Tecmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of humidity sensing properties of ZnS nanowires synthesized by vapor liquid solid (VLS) technique

Üzar

Okur

Arıkan

2011

Sensors and Actuators A: Physical

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show abstract

“…They can be tuned and manipulated in fascinating ways by controlling the dimension. Therefore, these materials have wide range of potential applications including chemistry, physics, electronics, optics, materials science, biomedical science and nanodevices (Sun et al 1999;Kishimoto et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and investigation of optical properties of ZnS nanostructures

Üzar

Arıkan

2011

Bull Mater Sci

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Structural characterizations of wurtzite zinc sulfide (ZnS) nanostructures synthesized by vapourliquid-solid technique (VLS) were carried out by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analyses. Spectral dependence of photoluminescence (PL) was also carried out for optical characterization. PL results indicate that the bandgap energy of bulk ZnS which is 3·68 eV at room temperature changes from 3·7 eV to 3·72 eV depending on the size of the structures. We also supported these results by calculating the bandgap energies theoretically with using the infinite potential well approximation for 1D structures.

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“…Zinc sulfide, a direct wide band gap transparent semiconductor, is one of the most important materials used in photonics research [9][10][11]. It is also an important material for a variety of applications such as electroluminescent devices, solar cells, and other optoelectronic devices.…”

Section: Introductionmentioning

confidence: 99%