Anderson's localization of molecular excitons in substitutionally disordered systems

✍ Scribed by D.D. Smith; R.D. Mead; A.H. Zewail

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 548 KB
• Volume: 50
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)80343-6

✦ Synopsis

We present clear evidence ibr the presence of Anderson's Iocalization in molecular solids.LXagolzal and offkliagortal disorder is intrbduced and controlled by substitutionally disordering the lattice at different temperatures. Optical and optiutly-dctccted magnetic resonance spectroscopy have been used to directly obtain the resonance interactions, the inhomogeteaus site-ener,q fluctuations, and the threshold for r?indcrson's transition. Tfie results on the hvo-dimensional lattice when compared with quasi+~redirnensionai systems indicate that cross chain interactio~ts and p~zono?~-as~j~te~ pmceses are important in determininli: the nature of extended states in disordered systems.