Batt R H, Braun C L, Hornig J F
Appl Opt. 1969 Jan 1;8 Suppl 1:20-4.
The quantum efficiency of photoconductivity in anthracene depends on electric field and temperature. Analysis of these results strongly suggests that the generation of free holes and electrons can be described by a model in which, following the initial ionization, most electron-hole pairs are thermalized while still bound by their mutual Coulomb field. The electron and hole may then either recombine or separate as free carriers as they diffuse subject to their mutual Coulomb field and the applied field. Interpreted in the light of this model, the dependence of free carrier quantum yield on temperature and photon energy indicates that the primary ionization process involves energy relaxation and autoionization rather than direct ionization.
蒽中光电导的量子效率取决于电场和温度。对这些结果的分析有力地表明，自由空穴和电子的产生可以用一个模型来描述，在该模型中，初始电离后，大多数电子 - 空穴对在仍受其相互库仑场束缚时被热化。然后，电子和空穴在受其相互库仑场和外加场作用而扩散时，可能会作为自由载流子复合或分离。根据该模型解释，自由载流子量子产率对温度和光子能量的依赖性表明，初级电离过程涉及能量弛豫和自电离，而不是直接电离。
