Why organic solar cell technology instead of perovskites?
When comparing organic and perovskite solar cells for indoor use, key differences include materials, regulations and manufacturing.
Perovskite solar cells are an emerging photovoltaic technology with high performance potential. However, because they contain water soluble lead, they are non-compliant with RoHS for indoor and product-integrated electronics and therefore product containing perovskite solar cells cannot be CE marked.
Moreover, perovskites are hybrid semiconductors, meaning they consist of several different elements that must assemble into a well-defined crystal structure. Doing this defect-free in a homogenous, reproducible way over large areas is challenging, which complicates mass production and impacts performance at volume.
Epishine has chosen to focus on organic solar cell technology designed for indoor environments and regulatory compliance in products used close to people, such as consumer and retail applications. With the ability to produce roll-to-roll, we enable high-volume scalability with reliable output. However, we continue to follow developments in perovskite technology.