研究目的
Investigating the effects of sulfamic acid sodium salt (SAS) as an additive on the performance and stability of CsPbIBr2 perovskite solar cells (PSCs).
研究成果
Incorporating SAS into CsPbIBr2 perovskite significantly improves the photovoltaic performance and moisture stability of PSCs. The additive enhances crystallization, reduces trap-state density, and possibly introduces an additional internal electric field, leading to a champion PCE of 10.57%. The study provides a promising additive for inorganic PSCs and a new perspective on the role of additives in enhancing device performance.
研究不足
The study focuses on the effects of SAS on CsPbIBr2 PSCs, but the long-term stability under operational conditions and the scalability of the fabrication process are not extensively explored. The mechanism of the additional internal electric field effect introduced by SAS requires further validation.
1：Experimental Design and Method Selection:
The study involved incorporating SAS into CsPbIBr2 perovskite precursor solutions at various concentrations (0%,
2：5%, 7%, 9%) and analyzing its effects on crystallization, morphology, and photovoltaic performance. Sample Selection and Data Sources:
CsPbIBr2 perovskite films were prepared on TiO2-coated FTO substrates, with and without SAS, for comparative analysis.
3：List of Experimental Equipment and Materials:
Materials included CsI, PbBr2, DMSO, SAS, spiro-OMeTAD, and others. Equipment included XRD, SEM, UV–vis spectrophotometer, XPS, AFM, and photovoltaic measurement systems.
4：Experimental Procedures and Operational Workflow:
Perovskite films were spin-coated and annealed at 225°C. Devices were fabricated with a structure of FTO/TiO2/perovskite/spiro-OMeTAD/Au and characterized under AM
5：5 illumination. Data Analysis Methods:
Data were analyzed using XRD for crystallinity, SEM for morphology, UV–vis for absorption, and J–V curves for photovoltaic performance.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
