77 K acre invsstlgated by opt~nl absorption and ESR mcasuremcnts over B wldc range or conccntntions. Abrupt changes of yield and spectral parameters were obscrvcd between I Z and Ia mol% etkmol where a structural tinsICon of the mbture had been reported.
The photoconversion of solvated electrons into trapped electrons in ethanol glass at 6°K
✍ Scribed by Lewis M. Perkey; Farhataziz; Robert R. Hentz
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 398 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
The 7 irradiation of an ethanol glass at 77°K produces solvated electrons (e,) which have an absorption spectrum with hax = 520 nm at 6°K. The conversion of esinto trapped electrons which absorb in the infrared (i.e., electrons in unrelaxed traps denoted by et) has been observed in bleaching es -at 6"K with light of A < 436 nm.
📜 SIMILAR VOLUMES
Photoconductivity of localized electrons, which are not solvated, in r-irradiated ethanol glass at 4 K was studied. Photocurrents of lo-l3 A or larger were stably detected in the wavelength range of 900-2200 nm. The wavelength dependence of the photocurrent reveals that pre-solvated electrons probab
The absorption spectrum ore; in ethanol is composed of 'hrce bands, suggesting the existence of various kinds of traps. The reuapping phenomenon and the increase of the Bz radical were observed after photobleaching e; at 4"K, but not e;. The photc-transition of ei is a bound-free one, but that of e;
## Pulse radiolysis of deuterated aqueous Liclglasses at temperatures in the range 6 K to 70 K show that the yield G(eiR) of infrared absorb-electrons (em) inaeases sharpIy as the temperature is lowered when [LEl] > 10 hf. Under these conditions the yield of visible absorbing electrons (e--,& decr