SiPerSol · Highly Efficient Yet Stable Triple Junction Silicon Heterojunction/Alloyed Sn-Pb Low Band Gap Perovskite/Halide Engineered I-Br High Band Gap Perovskite Tandem Solar Cell
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2021-08-01 → 2023-07-31
- EU contribution
- €191,149
- Participants
- 1
- Scheme
- MSCA-IF
Lines connect the coordinator with its partners.
Results in brief
Highly Efficient Yet Stable Triple Junction Silicon Heterojunction/Alloyed Sn-Pb Low Band Gap Perovskite/Halide Engineered I-Br High Band Gap Perovskite Tandem Solar Cell
Final report of MSCA fellow-SiPerSol 1. Explanation of the work carried out by the beneficiaries and Overview of the progress • The main purpose of this project is fabricating high performance stable perovskite (PSC)/PSC/silicon heterojunction (SHJ) tandem solar cell with evaporation/solution method. • Simulations were carried out to reach the optimized thicknesses of both top-cell and mid-cell in triple junction devices. • Mid-cell and top-cell PSC devices are fabricated and efficiency of 21% and 20% is obtained, respectively, and device parameters are among the highest values achieved so far by hybrid method. • Tandem devices based on SHJ/mid-cell and SHJ/top-cell are successfully prepared and the efficiencies of >24% and >27% are obtained, respectively. • The results of the project were presented in five different conferences. A manuscript is prepared and will be submitted. The whole process of tandem fabrication was presented to both political and industry decision makers as well as students. The detailed fabrication process was also provided to other team members, one visiting PhD student from Luxemburg University, and one R&D scientist from IPVF, France. 1.1 Objectives A. O1: Deposition of high quality FAPbI3-based perovskite by evaporation-spin coating method was the main purpose of this objective. Stabilizing the α-FAPbI3 phase was the main challenge of this objective. B. O2: Deposition of high bandgap high efficiency CsFAPb(IBrCl)3 perovskite by evaporation-spin coating method was the aim of this objective. Decreasing the Voc-bandgap deficit and inhibiting phase segregation upon light illumination were challenging in this objective. C. O3: Fabricating of highly efficient and stable SHJ/PSC/PSC triple junction tandem solar cells was the main target in this objective. Deposition of top cell on mid cell perovskite, finding proper interconnection without optical and electrical losses, and current matching of all three devices together to achieve very high efficiency was very challenging. D. Training objectives My core and advanced research skills was totally improved through training on various deposition and characterization methods. I also equipped with the knowledge of fabricating highly efficient tandem solar cells. For transferrable skills, I have great experience in working with other researchers from different backgrounds and fields. I also participated in a leadership training course from EPFL, which is also very useful for my career development. My professional network also greatly enhanced by participating in different conferences in the field and presenting the results in different countries along Europe.
Data: CORDIS, © European Union
Project objective
The global warming and air/water pollution are nowadays alarmingly threatening the life on Earth. Utilizing solar cells (SC) as one of the most effective solution can enormously reduce the fossil fuel consumption, and hence CO2 emission. However, the levelized cost of energy of SCs is still not competitive compared to fossil fuels, an obstacle which can be passed by using tandem SCs, most efficient emerging SC technology for this purpose. Combining mature technology of silicon SCs with amazing properties of perovskite SCs has the great potential to pass the 30% efficiency. The main aim of this interdisciplinary research is to fabricate a triple junction textured silicon heterojunction/alloyed Sn-Pb low band gap perovskite/halide engineered I-Br high band gap perovskite tandem solar cell by two-step evaporation/solution method with efficiency of >30% and stability of >1000 h under different stress conditions. SiPerSol will improve the state-of the-art by introducing the successful fabrication method of highly efficient stable low band gap Sn-Pb as well as high band gap I-Br perovskites on textured silicon heterojunction substrate, two major challenges to realize the mammoth potential of this advanced multilayered device. Moreover, it provides deep insights into the functioning of the interfaces and traps. The project will be conducted by Dr. Mohammad Reza Golobostanfard with years of experience on nanomaterial synthesis, analysis, and solution processing of different SC absorbers with supervision of Prof. Ballif and Dr. Jeangros with strong network from academic and non-academic centres in Switzerland and across Europe and more than 30 years of experience in silicon and perovskite SCs at EPFL (home of emerging SCs), PVLAB (well-equipped laboratory with world-class facilities for silicon and perovskite SCs fabrication and analysis). The project results will entirely benefit European industries and beyond by introducing highly efficient yet stable SCs.
Original text from CORDIS.
Participants
- ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE · LausanneCoordinatorSwitzerland
Links
Data: CORDIS, © European Union