卤化银中光生载流子的迁移:小极化子输运
Migration of photogenerated charge carriers in silver halides: small polaron transport
摘要:
近半个世纪前,我参加了一个雄心勃勃的研究项目,旨在建立离子盐的光分解机制。我们测量了溴化银中光电子和光空穴的迁移率和寿命,以获得该过程的早期知识。最后一对要研究的量是我们得到结果的扩散系数,这在当时是非常有争议的。现在,我们表明,扩散数据表明形成巡回扬泰勒小极化子作为下一阶段的光载流子在卤化银。
英文摘要:
Nearly half a century ago, I joined an ambitious research project aimed at establishing the mechanism of photodecomposition of ionic salts. We measured the mobilities and lifetimes of photoelectrons and photoholes in silver bromide in order to get an early-stage knowledge of the process. The last pairs of quantities to study were the diffusion coefficients for which we got results, highly controversial at that time. Now we show that the diffusion data suggest the formation of itinerant Jahn Teller small polarons as the next-stage photo-carriers in silver halides.
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