Study of the Color Detection of a-Si:H by Transient Response in the Visible Range (CROSBI ID 94694)
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Podaci o odgovornosti
Gradišnik, Vera ; Pavlović, Mladen ; Pivac, Branko ; Zulim, Ivan
engleski
Study of the Color Detection of a-Si:H by Transient Response in the Visible Range
A new technique of color detection based on time-resolved charge collection during transient response measurement using a hydrogenated amorphous silicon detector has been proposed and experimantally demonstrated. The method based on the material intrinsic wavelength-filtering properties is implemented in color sensing by transient response of a detector to a combination of basic colors light and voltage pulse. Resulting transient responses under different illumination and bias voltage conditions confirm considerable accuracy of proposed method. In particular, the best agreement of measured and calculated transient response curves has been obtained by using the spectral response of all three primary colors in calculations. It was observed that the presence of blue light drastically reduces the transient response to a chromatic light illumination. Finally, a voltage pulse influence to the basic colors transient response was found.
amorphous silicon; color; detectors; thin-film devices; transient analysis; transient response
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