Page 8 of the paper you reference mentions Ascent Solar.
NICE!!!!!
Good find!!!
"3. Model Test Verification
3.1. Overview of the Flight Test
An airship flight test was conducted on 7th Aug. at an altitude of 19 km. The length
of the airship is 70 m, and solar cell modules were placed at the top of the airship shown
as Figure 4. Two solar cell modules (#1 and #2, about 1 m2
each) were tested on board
for verification experiments. The solar cell modules are a 10% efficiency flexible thin film
CIGS module produced by Ascent Solar company of America. Table 1 shows the sensors’
parameter and accuracy.
Figure 4. Diagram of solar cell modules layout.
Energies 2021, 14, 1228 9 of 14
Table 1. Table of sensors’ parameter and accuracy.
Type Measuring Range A
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