Characteristics of a silicon Schottky photodetector produced from colloidal gold nanoparticles

Ismail, Raid A.; Ali, Abdulrahman K.; Hasson, K.I.

doi:10.1049/mnl.2012.0319

Cited by 10 publications

(2 citation statements)

References 14 publications

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“…The concentration of Ag and Au NPs was 0.4 and 0.5 mg mL -1 , respectively. The experimental details of laser ablation process of Au nanoparticles are presented elsewhere (Ismail et al 2012;Yong et al 2006). Incorporating the Ag and Au NPs into the PS matrix was carried out using drop casting technique.…”

Section: Methodsmentioning

confidence: 99%

Preparation and properties of polystyrene incorporated with gold and silver nanoparticles for optoelectronic applications

2017

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In this paper, methyl-orange-doped polystyrene (PS) microspheres covered with gold and silver nanoparticles (NPs) have been synthesized. The optical and structural properties of the porous polystyrene films before and after incorporation of Au and Ag nanoparticles were investigated using X-ray diffraction (XRD), scanning electron microscope (SEM), atomic force microscope (AFM), Fourier transformation infrared spectrophotometer (FT-IR), and UV-Vis spectrophotometer. The optical data showed that the optical energy gap of PS film was increased from 2 to 3.4 eV and to 3.5 eV after being filled with Ag and Au nanoparticles, respectively. The electrical and photoresponse properties of Ag-PS/p-Si and Au-PS/pSi heterojunctions were studied. The rectification characteristics of the junction were improved after nanoparticle incorporation. The photoresponse results confirm the presence of two peaks of response located at 450 and 900 nm. The Au-PS/Si heterojunction gave the best photosensitivity.

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Section: Methodsmentioning

confidence: 99%

Preparation and properties of polystyrene incorporated with gold and silver nanoparticles for optoelectronic applications

2017

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“…RTO system was used to oxidize the porous silicon layer at 700°C for 90 s in static air using bank of halogen lamps with one-side illumination. Pulsed laser ablation technique was used to synthesise gold nanoparticles by irradiating of high purity gold plate in methanol solution by Nd:YAG laser pulses of 25 J/cm 2 laser fluence; the detail of synthesis method was presented elsewhere (Ismail et al 2012). Incorporating the porous silicon samples with Au nanoparticles was carried out using the drop casting technique after 1 h of sonication.…”

Section: Methodsmentioning

confidence: 99%

Preparation and characteristics study of nano-porous silicon UV photodetector

2016

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In this study, influence of rapid thermal oxidation RTO and embedding of gold nanoparticles on the performance of porous silicon photodetector synthesised by anodization technique were investigated. Anodization technique was used to fabricate porous silicon photodetector at 10 mA/cm 2 for 10 min. The structural, morphological, and photoluminescence properties of porous silicon and gold nanoparticles were investigated. Dark and illuminated current-voltage I-V characteristics, linearity, spectral responsivity, detectivity, and pulsed responsivity of photodetector were investigated before and after RTO and after incorporation of gold nanoparticles. The photosensitivity of nano-porous silicon photodetector at 365 nm was increased from 44 to 154 mA/W and to 200 mA/W at 10 V bias after RTO process and incorporating the gold nanoparticles into the silicon matrix, respectively.

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Preparation and Characteristics Study of Polystyrene/Porous Silicon Photodetector Prepared by Electrochemical Etching

Hadi

Ismail

Almashhadani

2019

J Inorg Organomet Polym

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Characteristics of a silicon Schottky photodetector produced from colloidal gold nanoparticles

Cited by 10 publications

References 14 publications

Preparation and properties of polystyrene incorporated with gold and silver nanoparticles for optoelectronic applications

Preparation and properties of polystyrene incorporated with gold and silver nanoparticles for optoelectronic applications

Preparation and characteristics study of nano-porous silicon UV photodetector

Preparation and Characteristics Study of Polystyrene/Porous Silicon Photodetector Prepared by Electrochemical Etching

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