Abstract
Abstract The electronic absorption spectra of thin films of pure poly(methyl methacrylate) (PMMA) and PMMA doped with acceptors, donors, and acceptor-donor systems were recorded in the range 200–900 nm. The acceptors are tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), and chloranil (Chl). The donors consist of two groups. The first group is anthracene (An), rhodamine 6G (Rh 6G), rhodamine B (Rh B), and naphthalene 1,3 diol (Nph). The second group is the substituted phenyl hydrazone (H, CH3, OCH3, and O,P dichloro). Both donors and acceptors absorb with low to medium intensity in the ultraviolet and visible regions from 250 to 600 nm. The electrical resistivity of the sensitive systems was measured and the activation energy was determined.
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