Many technologies in energy, transportation, and telecommunications require large infrastructure systems to deliver benefits to adopters and society. Policymakers seeking to promote the diffusion of infrastructure-dependent technologies are often confronted with the ``chicken-and-egg" problem:...

Alkali metal Na is beneficial to the performance of CuInGaSSe thin film solar cells. This work studies the addition and optimization of a sputtering SiO 2 barrier layer on the SLG to optimize the Na content that diffuses into the absorber layer from the SLG. The resulting Se content and...