I looked into the inkjet solar cells, and the idea was abandoned after it took off in 2008. I had honestly never heard of this being done before so it sounded insane to me reading it here.
But yes it appears photo-cells are much less complicated than I thought.
I was thinking of them as analog to the semiconductors used in computers, but even then there's a WIDE berth between the Intel/AMD/ARM chips in computers/phones vs the much simpler IC's in your car's key-fob.

Perskovite is a mineral that was discovered in the Ural mountains of Russia, and Perskovite cells have caused renewed interest in inkjet printing.
A regular Perskovite cell has about 25% solar efficiency, and printing them with inkjets can yield 17% efficiency.
I don't know if it's considered a semiconductor though.
The original pieces I read about inkjet printing of solar cells required making the "ink" from a semiconductor substance. If I'm reading this right Perskovite crystals are somewhat different from traditional semiconductors, but they have properties that can be used for photo-electrolysis, some capacitors, and LED's.
They also require doping with another material.
Doping is a process that also happens in production of traditional semiconductors.

Virtually all circuit-boards today are PCB's or printed-circuit-boards. The older methods still used in prototyping were bread-boards. In the end it's all just circuitry really, but shrinking down the size and refining the materials is how we fit these things into tiny packages. Also, Moore's Law or the shrinking of semiconductor processes has led to them being able to do more cycles-per-second in smaller and smaller packages with less heat generation.
But the beautiful thing is that if we have the knowledge we can buy cheap very-capable products and assemble them into complex functions.
For instance, the Raspberry-Pi created a new market and it was intended for teaching computer science and engineering to high-school students.

I have just finished the greenhouse structure, have just acquired a suitable tank for some fish, and some food grade plastic barrels for filtering waste water through the hydroponic medium. I'm still working on the innards of the system, but hopefully will be up and running sometime this winter.

His neighbors erected a rather large greenhouse in the shape of the half-tube aircraft hanger style. It's probably about 25-ft high, and maybe a little wider across. I think they used the "natural pond" landscape liner inside of wooden square tanks, and they have those blue barrels setup there near them as well.