研究目的
To develop a high-efficiency four-terminal perovskite/silicon tandem solar cell using a sandwiched gold nanomesh as a transparent electrode to overcome the Shockley–Queisser limit.
研究成果
The MoO3/Au/MoO3 multilayer fabricated by thermal evaporation serves as an excellent transparent electrode, leading to a semitransparent perovskite device with an 18.3% efficiency and a four-terminal perovskite/silicon tandem solar cell with a combined efficiency of 27.0%. This work demonstrates a significant advancement in overcoming the Shockley–Queisser limit for solar cells.
研究不足
The study used MAPbI3 as the absorber layer, which features a nonideal bandgap and poor stability for tandem cells compared to FA-based perovskite, limiting the efficiency and stability of the tandem cell.
1：Experimental Design and Method Selection:
The study designed a MoO3/Au/MoO3 multilayer as a transparent electrode for semitransparent perovskite solar cells (Pvs-SCs) to improve conductivity and optical transparency.
2：Sample Selection and Data Sources:
Methylammonium lead triiodide (MAPbI3) was used as the absorber layer, and a heterojunction silicon solar cell was used as the bottom cell.
3：List of Experimental Equipment and Materials:
Materials included methylamine solution, hydroiodic acid, γ-butyrolactone, dimethyl sulfoxide, MoO3, PbI2, spiro-OMeTAD, and ITO glass. Equipment included a thermal evaporator, UV-vis spectrophotometer, and field emission SEM.
4：Experimental Procedures and Operational Workflow:
The perovskite absorber was deposited using a one-step method, and the MoO3/Au/MoO3 electrode was fabricated by thermal evaporation.
5：Data Analysis Methods:
The performance of the solar cells was measured using a Keithley 2400 SourceMeter, and the IPCE was acquired on the NREL measurement system.
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