2021 Fiscal Year Research-status Report
Development of Chalcogenide Perovskites(ABS3) for Pb-free, Stable and Efficient Perovskite Solar Cells
| Project/Area Number |
21K05218
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| Research Institution | Toin University of Yokohama |
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Principal Investigator |
Jena Ajay・Kumar 桐蔭横浜大学, 工学研究科, 特任助教 (00750936)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | BaZrS3 / solid-state synthesis / solvothermal synthesis |
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| Outline of Annual Research Achievements |
Synthesis of BaZrS3
1.Solid-state synthesis of BaZrS3: grinding BaS and ZrS2 together with and without thiourea (TU) and heating the mix powder at around 250oC-350oC, black powder resulted. However, XRD analysis showed no peaks matching with BaZrS3.
2.Solvothermal synthesis: BaCl2, ZrCl4 and thiourea in different solvent systems and at different temperatures. BaCl2 +Z2Cl4+ TU in hexane (autoclave): XRD shows no peaks matching with BZrS3. BaCl2 +Z2Cl4+ TU in Ethanol and water (in an autoclave): black color but amorphous powder was obtained. BaCl2+ZrCl4+TU in ethylene diamine (EDA) (autoclave): black powder but amorphous BaS + ZrS + EDA + ethylene dithiol (EDT) (autoclave, 180oC) :black powder but amorphous. BaCl2+ ZrCl4 +TU in DMSO (autoclave, 230oC/40h): black powder but amorphous
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| Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
because of COVID and special care taken about the sulfur compounds releasing during the reactions.
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| Strategy for Future Research Activity |
Detailed characterization of BaZrS3 powder (amorphous) synthesized by solvothermal method and removal of residual TU byproducts.
Thermal annealing to convert the amorphous powder to crystalline
BaZrS3 thin film formation
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| Causes of Carryover |
could not perform experiments as planned because of COVID-19
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