Organic static induction transistor for color sensors

Kudo, Kazuhiro; Shimada, Kazushi; Marugami, K.; Iizuka, Masaaki; Kuniyoshi, Shigekazu; Tanaka, Kuniaki

doi:10.1016/s0379-6779(98)00381-6

Cited by 19 publications

(8 citation statements)

References 6 publications

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“…Among a number of different MPcs, copper(II) phthalocyanine (CuPc) has been most extensively studied. 4,[17][18][19][20][21][22][23][24][25][26] Such studies include the use of CuPc as color sensor, 17 electroluminescent device, 18 interfacial properties, [20][21][22][23] etc. Recently we have reported the surface morphology of CuPc molecules deposited on polycrystalline gold substrates and the formation of CuPc nanostructures (nanoparticles, nanocabbages, nanoribbons and nanoflowers).…”

Section: Introductionmentioning

confidence: 99%

Power spectral density analysis and photoconducting behavior in copper(ii) phthalocyanine nanostructured thin films

Karan

Mallik

2008

Phys. Chem. Chem. Phys.

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Surface morphology of copper(II) phthalocyanine (CuPc) nanostructured thin films deposited on polished silicon surface was characterized by using atomic force microscopy (AFM). Characteristic topographic parameters like fractals contribute substantially to the thin film morphology, which directly or indirectly influences the physical and optical properties. Fractal geometry and scaling concepts can concisely as well as more effectively describe the complex rough surface morphology. The power values of power spectral density (PSD) for the AFM digital data were determined by the fast Fourier transform (FFT) algorithms instead of the root-mean-square (rms) and peak-to-valley value. The PSD provides a more reliable description to the topography than the rms roughness and imparts some useful information of the surface, including fractal contributions. Fractal analyses, including area-perimeter and PSD methods, have been used to evaluate surface morphology of a vacuum deposited CuPc thin film surface formed under various film deposition temperatures. Film deposition temperature has affected the microstructural and related morphological evolutions very differently. The PSD plots are successfully approximated by the k-correlation model. The film growth is interpreted by the bulk and surface diffusion using parameter C of the k-correlation model. The dark and photoconductivity of CuPc nanostructures in Si/CuPc/Ag configuration at different temperatures have been studied and their changes with roughness and temperature have been discussed. A significantly higher value of the rectification ratio (RR) and photoswitching behavior in such configuration have been noticed.

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Section: Introductionmentioning

confidence: 99%

Power spectral density analysis and photoconducting behavior in copper(ii) phthalocyanine nanostructured thin films

Karan

Mallik

2008

Phys. Chem. Chem. Phys.

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“…Among the metal phthalocyanines, copper phthalocyanine (CuPc) has been found to have superior properties [22][23][24][25]. CuPc is a square planar molecule, which in bulk forms a number of different polymorphs with varying molecular arrangement and orientations along the stacking direction [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal annealing on the structural and optical properties of spin coated copper phthalocyanine thin films

Afify

Gadallah

El-Nahass

et al. 2015

Journal of Molecular Structure

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“…Recently, studies on the orientation of substituted Pc's on gold have attracted attention of researchers [20,21]. Among the substituted Pc's, copper (II) ph- * E-mail: vinutvadakel@gmail.com thalocyanine has been found to have superior properties [22][23][24][25] than the others.…”

Section: Introductionmentioning

confidence: 99%

Optical and surface morphological studies on CuPcOC8 thin films prepared by physical vapour deposition

Vadakel

Menon

2013

Mater Sci-Pol

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24-copper octakis (octyloxy) phthalocyanine (CuPcOC 8 ) thin films deposited at room temperature have exhibited a change in their surface morphology with the post deposition annealing temperature under normal atmosphere.These films have been characterised by optical absorption also. SEM images have shown densely packed nano particles and nano-rod like structures on the substrates annealed at different temperatures. The optical transition was found to be direct allowed and the direct energy gap changed with the annealing temperature. The results of optical and surface morphological studies on CuPcOC 8 have been discussed.

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Organic static induction transistor for color sensors

Cited by 19 publications

References 6 publications

Power spectral density analysis and photoconducting behavior in copper(ii) phthalocyanine nanostructured thin films

Power spectral density analysis and photoconducting behavior in copper(ii) phthalocyanine nanostructured thin films

Effect of thermal annealing on the structural and optical properties of spin coated copper phthalocyanine thin films

Optical and surface morphological studies on CuPcOC8 thin films prepared by physical vapour deposition

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