In this project, ANU will be working with Jinko Solar to develop new approaches for perovskite-silicon tandem solar cells. ANU has recently achieved a world record efficiency for perovskite-silicon tandems, and together with Jinko Solar they will build on this work to produce larger, more efficient and more stable solar cells that have the potential for commercialisation.
The efficiency of standard silicon solar cells is limited due to the way they absorb light. This project will work to develop innovative, high efficiency solar cells using a combination of perovskite materials and silicon. Using perovskites will allow higher efficiency by making better use of blue light in the solar spectrum.
Increasing the efficiency of solar cells is crucial to continuing to reduce their cost, because higher efficiency systems require less area for a given output power, and hence less glass and other materials. Standard silicon solar cells have limited potential for further increases in efficiency. Combining silicon with other materials such as perovskites is very promising for achieving cost reductions. Perovskites are particularly exciting because they are a low cost material that can be used to make high efficiency solar cells.
Katika mradi huu, ANU itafanya kazi na Jinko Solar kuendeleza mbinu mpya kwa perovskite-silicon tandem solar cells. ANU hivi karibuni imepata rekodi ya ulimwengu ya ufanisi wa tandem ya perovskite-silicon, na pamoja na Jinko Solar watajenga kazi hii ili kuzalisha seli za jua kubwa, bora na thabiti zaidi ambazo zina uwezo wa kibiashara. Ufanisi wa seli za jua za kawaida za silicon ni mdogo kwa sababu ya jinsi wanavyopunguza nuru. Mradi huu utafanya kazi ya kuendeleza ubunifu, ufanisi wa juu wa seli za jua kwa kutumia mchanganyiko wa vifaa vya perovskite na silicon. Kutumia perovskites itaruhusu ufanisi wa juu kwa kufanya matumizi bora ya mwanga wa bluu katika wigo wa jua. Kuongeza ufanisi wa seli za jua ni muhimu kwa kuendelea kupunguza gharama zao, kwa sababu mifumo ya ufanisi wa juu inahitaji eneo kidogo kwa nguvu ya pato, na kwa hivyo glasi kidogo na vifaa vingine. Chembe za kawaida za jua za silicon zina uwezo mdogo wa kuongeza ufanisi zaidi. Kuchanganya silicon na vifaa vingine kama vile perovskites ni kuahidi sana kwa ajili ya kufikia kupunguza gharama. Perovskites ni nyenzo ya bei nafuu ambayo inaweza kutumika kwa ajili ya kutengeneza seli za jua.