Naslov
Study of the Color Detection of a-Si:H by Transient Response in the Visible Range

Autori
Gradišnik, Vera ; Pavlović, Mladen ; Pivac, Branko ; Zulim, Ivan

Izvornik
IEEE Transactions on Electron Devices (0018-9383) 49 (2002), 4; 550-556

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
amorphous silicon; color; detectors; thin-film devices; transient analysis; transient response

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Elektrotehnika

POVEZANOST RADA