Photoconductivity of Stibnite (Sb_2S_3)

概要

論文の詳細を見る
We have investigated experimentally the photoconductivity of stibnite, a natural single crystal of Sb_2S_3. The results obtained up to the present are as follows: 1. The maximum spectral sensitivity at room temperature is found at the wavelength of 770mμ and with the rise of temperature it shifts to the longer wavelengt hside. 2. The photo-current when illuminated by illuminant A varies with half power of the light intensity between 1 and 100 feetcandles. 3. The thermal activation energy for the dark current is 0.48 e.v. between room temperature and 200℃, and temperature dependence of the photo-current is also investigated. 4. The time lag of response is about 3m sec, for the base photo-current of 10μA. 5. Moss's constant, n^〓/λ, is calculated to be 82 from our measurements on dielectric constant and refractive index. 6. The crystal is found to be an n-type semiconductor from its rectifying characteristics. 7. The response for X-rays is considerably high, while that for ultra-violet rays, β-rays or γ-rays, is low.
1955-07-05