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RESEARCH PRODUCT
Singlet and triplet excitons in conjugated polymers.
Shuji AbeJ. YuWu-pei Susubject
Condensed Matter::Quantum GasesPhysicsCondensed matter physicsCondensed Matter::OtherElectric potential energyExcitonBinding energyCondensed Matter::Mesoscopic Systems and Quantum Hall EffectMolecular physicssymbols.namesakeTight bindingCoulombsymbolsSinglet stateHamiltonian (quantum mechanics)Biexcitondescription
Exciton states in conjugated polymers are theoretically studied in the Su-Schrieffer-Heeger model supplemented by long-range Coulomb interactions. The relationship between exciton energies and basic interaction parameters is clarified, demonstrating the special nature of one-dimensional excitons. The binding energies of the lowest singlet and triplet excitons depend sensitively upon the on-site Coulomb energy. Relevant experiments in polydiacetylene can be explained by the present model using moderate interaction strength.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-04-15 | Physical review. B, Condensed matter |