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The behavior of InN/InxGa1-xN spherical quantum dots solar cell is investigated, considering the internal electric field induced by the polarization of the junction. In order to determine the position of the intermediate band (IB), we present an efficient numerical technique based on difference finite method to solve the 3D time-independent Schrodinger's equation in spherical coordinates. The resultant n × n Hamiltonian matrix when considering n discrete points in spatial direction is diagonalized in order to calculate energy levels. Thus, the interband and intersubband transitions are determined, taking into consideration the effect of the internal electric field, size dots, interdot distances, and indium content on the energy levels, optical transition, photo-generated current density, open-circuit voltage and power conversion efficiency of the QD-IBSCs.

As emi-classical approach is used to analyse how transverse effects and relaxation due to homogeneous and inhomogeneous broadening affect the dynamics of superfluorescence. Results are discussed in order to match our Te 2 data.

Superfluorescence emitted from the output face of an initially inverted Te/sub 2/ vapor is found to exhibit ringing; when diffraction is not dominant, this is an intrinsic property of superfluorescence, and its aspects are compared to numerical integration of the Maxwell-Bloch equations. >

We report observation of beats in the time-resolved spectra of [sup 125]Te[sub 2] superfluorescence. The results are used to determine hyperfine contributions in the [ital B] 0[sub u][sup +] state.