Electrostatic Mechanism of Emission Enhancement in Hybrid Metal-semiconductor Light-emitting Heterostructures Page: 24
The following text was automatically extracted from the image on this page using optical character recognition software:
3.4.2 Angle-Dependent PL
For angle-dependent PL measurements there are two possibilities for measure.
Either the emitted PL spectrum is measured as a function of the angle of incidence of
the excitation source, or as a function of the angle of emission from the sample. The
former should contain some information about the absorption properties of the sample
as a function of the incident angle, whereas the latter should carry more information
about the recombination processes within the system.
In this experiment case I have measured the spectrum as a function of emission
angle since the electron-phonon coupling resulting in phonon replicas is strongly
wavevector dependent . In order to make the measurements, I mounted a fiber
optical waveguide on an arm attached to a goniometer base centered beneath the
X Beam Stop
SSlit . :e
Figure 3.4 Schematic diagram of the angle-dependent PL experiment. A
fiber optical waveguide is mounted along with an iris on an goniometer-
mounted arm centered on the sample. The angle of rotation is measured
relative to the normal of the sample. The fiber then connects directly to
the Triax spectrometer using a fiber mount adapter.
Here’s what’s next.
This dissertation can be searched. Note: Results may vary based on the legibility of text within the document.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Dissertation.
Llopis, Antonio. Electrostatic Mechanism of Emission Enhancement in Hybrid Metal-semiconductor Light-emitting Heterostructures, dissertation, May 2012; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc115113/m1/34/: accessed February 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .