Exciton is an electron-hole pair with Coulomb interaction,which represents the binding energy of the two particles.The electron and hole in exciton may have either the opposite or the parallel spin directions,correspo...Exciton is an electron-hole pair with Coulomb interaction,which represents the binding energy of the two particles.The electron and hole in exciton may have either the opposite or the parallel spin directions,corresponding to bright(emissive)singlet exciton or dark(non-emissive)triplet exciton,respectively.Triplet states lie below but are three times abundant than singlet states.展开更多
文摘Exciton is an electron-hole pair with Coulomb interaction,which represents the binding energy of the two particles.The electron and hole in exciton may have either the opposite or the parallel spin directions,corresponding to bright(emissive)singlet exciton or dark(non-emissive)triplet exciton,respectively.Triplet states lie below but are three times abundant than singlet states.
