초록

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Abstract ▼ AI-Helper

In this paper, photoconductive pure CdSe films and CdSe films doped with various impurities are fabricated by vaccum deposition and subsequent heat treatment in vaccum. The substrate is kept at $200^{\circ}C$ during deposition and temperature generally makes the films more photoconductive...

In this paper, photoconductive pure CdSe films and CdSe films doped with various impurities are fabricated by vaccum deposition and subsequent heat treatment in vaccum. The substrate is kept at $200^{\circ}C$ during deposition and temperature generally makes the films more photoconductive. The photocurrent of the films increase linearly with light illumination. Spectral response of photoconductivity is measured at the wave length range of 380nm to 850nm. The maximum response is found at 700nm in pure CdSe films, but it shifts to the longer wavelength in impurity-doped CdSe films. Photo-response of the pure CdSe films are more sensitive at lower temperature, while the impurity-doped films show the opposite trend.