Embed Size (px)
DESCRIPTION
TRPL Up-conversion Photon Counting System. Typical PL response of heavily doped semiconductor samples. PC with LabView. I SF ~ I PL . PL. I PL. PL + Las. GPIB. T 1000 0 C. NL crystal. Las. I Las. PMT. Photoluminescence Up-conversion. Monochromator. PPLN. - PowerPoint PPT Presentation
Citation preview
Heavily doped semiconductor samples for Thermophotovoltaic Applications
Thermophotovoltaic (TPV) generation of electricity offers fundamental advantages relative to other direct energy conversion techniques (e.g., thermoelectric, thermionic)
The most important is the ability to recuperate the low energy waste heat
T1000 0C
h > Eg
TRPL Up-conversion Photon Counting System
PMTPPLN
Reflective objective
BS
Sample
150
fs/1
00 M
Hz
Nd:
glas
s la
ser
SF=PL+Las
PLLas
PC with LabView
GPIB
Monochro
mator
Delay line
ISF~ IPL
IPL
ILas
PL
Las
PL+ Las
NL crystal
Exci
tatio
n pu
lse
Delayed laser pulse
Las
LuminescencePL
delay
Sum frequency radiationSF=PL+ Las
Photoluminescence Up-conversion
Typical PL response of heavily doped semiconductor samples
