Solar cells (PV Cells) are expensive and delicate. We want to take maximal steps to keep them safe and undamaged while they’re waiting around before launch. I asked the supplier of our solar cells how they should be store, and she said “nitrogen drying cabinet” and “sulfur-proof paper insulating.” Your job is to
(1) Confirm that that advice is reasonable
(2) Find links for us to buy that stuff
The advice to store PV cells for a CubeSat in a nitrogen drying cabinet with sulfur-proof paper insulation is correct and follows standard practices.
Ideally we would want to store the PV cells in a moisture free non reactive environment as well as minimize its exposure to acidic particles like sulfur.
Storing PV cells in a nitrogen environment helps prevent oxidation and corrosion, which can degrade the cells' performance over time. Nitrogen is an inert gas that displaces oxygen and moisture, creating a dry and non-reactive atmosphere ideal for long-term storage [1].
Additionally, using sulfur-proof paper insulation is recommended because sulfur compounds which are highly acidifying can react with and contaminate the semiconductor materials used in PV cells, reducing their efficiency[2]. Based on my research any acid-free paper/insulation will provide protection against any other acidic particles including sulfur.[3]
By following this storage method, the PV cells' characteristics and performance can be maintained until they are integrated into the CubeSat's solar panels for launch and operation in space.