indirect transition
1.All the films have the same indirect transition bandgap, but those with one time dip have no indirect transition.
2.Theory of Semiconductor、Absorption、Direct transition、Indirect Transition、Emission、Radiation Recombination、Iradiation Recombination、Donor、Acceptor、Exciton、Phonon、Photon、Polarition.
4.The types and Debye temperatures of the phonons participating in the indirect transition have also been determined.
5.The absorption edge below 3 5eV is attributable to indirect transition by studing the ?α 1/2 hν? curve.
6.It is affirmed that the absorption edge below 4. 0 eV is attributable to indirect transition,the significant discussion of three straight-line parts of spectral line are obtained by studing the curve of LiNbO3. The energy gap E, is 3. 38eV.
