Bare Solar Panels

Does anyone know a good source for small bare solar panels? I want to build an ultra-light 4 to 5 watt solar panel. I am only looking to get .5 amps out of my panel. Thanks guys

Like these?

:person_facepalming:

Volt ?

Stuff like this, you mean?

https://www.ebay.co.uk/sch/i.html?\_nkw=solar+cell