SiLENSe5.1 버전이 출시되었습니다.
첨부된 릴리즈노트와 아래 설명 참고하시기 바랍니다.
Please find Release Notes attached. Below, the main improvements are listed in brief:
Physical model:
1. A new model for effect of the composition fluctuations on the emission spectrum is implemented. The model includes new parameter
Usp, which is specified for the QW layer. If a QW consists of several layers, the maximum value of Usp is used for the whole QW.
The model is used only if the checkbox for using composition fluctuation model is checked. Roughly, Usp is the typical energy of
deviation of the energy gap of the QW from the value computed from the layer composition. Such a deviation changes the shape of
the emission spectrum to a more realistic view. As the model broadens the spectrum, a lower value of uniform spectrum broadening
to be used in "Global Parameters" tab (see Eq. (8.14)). The model is used in updated SQW, SQW-relaxed, and MQW examples. The
default values are Usp = 25 meV and gamma_uniform = 5 meV. Since the impact of the fluctuations strongly depends on the growth,
users are welcome to change the above parameters to fit their experimental spectrum shape.
2. The model for composition fluctuations effect on the IQE is slightly changed compared to version 5.0 . In version 5.1,
fluctuations do not effect the recombination on defects other than dislocations (i.e. do not change the lifetimes directly
specified by the user). So, some difference in the results compared to version 5.0 is possible.
3. User can change the power law for dependence of the radiative and Auger recombination constants (B, Cn, Cp). Default settings
exactly reproduce version 5.0 .
User interface:
4. 4 new columns are added in "List of Results" table: the J_SRH and J_Auger represent the current density converted into the SRH
and Auger recombination, respectively, the non-ideality factor "m" is calculated according to Eq. (7.4) of Physics Summary, and
the peak wavelength of the emission spectrum "Peak WL". Since spectrum computations are required to compute the wavelength, the
user needs use "Run -> Update Peak Wavelength" menu item (or the respective button from the toolbar) to see the wavelength. It may
look inconvenient, but we decided to go this way to avoid situation when visualization of the table is delayed because of
automatic computation of the spectra (the computational time for spectra may be considerable). As the peak wavelength is
calculated for some bias, it is stored and close\open of the table will not clear the peak wavelength.
5. Export of all results in a single file (List of Results window, "Export -> All Results in Single File" menu item or the
respective button) is introduced by request of some customers.