In this project, a thorough investigation of different transparent heterojunctions has been proposed which are utilized in the construction of complete solar cell configurations based on free-standing nano cellulose. Therefore, ultra-lightweight, flexible, and bio-degradable substrates will use to meet the printing technology standards. As a free-standing conducting electrode, cellulose nanocrystals grafted with semi-metallic polyoxometalate clusters will be developed for STPSCs. In addition, lead-free (non-toxic) perovskite synthesis and further device engineering by utilizing novel 2D materials can improve the overall performance, stability, and transparency of the PSCs. Using multiple optimization processes at transparent heterojunction will try to achieve ~30 kW/kg of specific power, that can produce maximum power from negligible weight substrate.

Also, the photodynamics at the novel interfaces will be investigated using the light-matter interaction. These interactions at the novel heterostructure will provide fruitful but elementary information about heterostructures. The other important questions are: how many photons can convert into electrons (electric current)? How much time will be required to separate excitons? What are the factors responsible for carrier recombination? etc. It may be a viable solution for energy generation at a much lower cost than current technologies. Likewise, the optimized flexibility and their optoelectronic parameters may lead to the integration into wearables electronic devices. This work will generate fundamental, scientific, and technological assets for the institute as well as for the NCN.