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- W2038471885 abstract "Abstract The X-band ODMR of 0.1–10 mol.% C60-doped 2,5-dihexoxy poly (p-phenylenevinylene) (DHOPPV) and 2,5-dibutoxy poly(p-phenylene-acetylene) (DBOPPA) is described. As invariably observed in undoped π-conjugated polymers, it includes a narrow PL-enhancing polaron resonance at g ≊ 2.002, and full- and half-field triplet exciton powder patterns. The polaron resonance is surprisingly weak in undoped DHOPPV, but its intensity increases twentyfold at 0.1 mol.% C60, and then decreases one hundredfold at 10 mol.%. In undoped DBOPPA the narrow resonance is intense and initially decreases with C60 content. C60 doping generally drastically weakens the full- and half-field triplet exciton resonances. The results are discussed in relation to the role of positive (p+) and negative (p−) polarons and bipolarons as nonradiative singlet and triplet quenching centers; the polaron resonance is then attributed to their removal by spin-dependent p+−p− recombination, which may also generate radiative singlet excitons." @default.
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- W2038471885 date "1994-11-01" @default.
- W2038471885 modified "2023-09-23" @default.
- W2038471885 title "X-Band Optically Detected Magnetic Resonance (ODMR) Study of C60-Doped π-Conjugated Polymers" @default.
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- W2038471885 doi "https://doi.org/10.1080/10587259408039263" @default.
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