The problem with Solyndra wasn't only trying to scale up CIGS to mass fabrication (apparently hard to do) but also their insistence of doing it inside glass tubes (apparently much harder). All other CIGS companies have planar designs and as do this one. That's more promising as I see it.
Although I don't see the point of this project. Solar cells have to be cheap and I don't see how a CMOS compatible many step, large area, process will ever be. Seems like a better idea to just take a standard chip and power it with a standard solar cell than doing this, from a cost perspective.
Although, it's a research paper so I guess the point is to show more what's techically possible than what makes sense. (With the disclaimer that I haven't read the paper myself more than the summary above!)
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.