At present,the development of perovskite solar cells(PSCs)is progressing rapidly,but the issue of poor stability remains a significant challenge.Achieving a stable precursor solution is crucial for the large-scale pro...At present,the development of perovskite solar cells(PSCs)is progressing rapidly,but the issue of poor stability remains a significant challenge.Achieving a stable precursor solution is crucial for the large-scale production of high-quality PSC films.In this study,we successfully developed a strategy to improve the long-term stability of the precursor solution and improve device performance by employing 1-n-butyl-3-methylimidazolium di-n-butyl phosphate(BMIMBP)as an anti-aging additive.The BP−component inhibits the reactivity of I−and formamidinium ion through multiple chemical bonds,thereby stabilizing the precursor solution.In addition,the BMIM+component,which contains an amino group,can form two-dimensional perovskite internally,further enhancing the device stability.This strategy provides valuable guidance for achieving long-term stability in solar cells.展开更多
文摘使用廉价的二乙胺为模板剂,以合适的硅源、磷源、铝源,采用先陈化后晶化的合成方式,合成了SAPO-11分子筛,并研究了不同因素对SAPO-11分子筛合成的影响.结果表明:二乙胺为SAPO-11分子筛合成的合适模板剂,不同的加料方式对分子筛的合成有影响,最佳的陈化时间和晶化时间分别为24 h,36 h.
基金the support from the National Natural Science Foundation of China(NSFC)(U20A20128,52163019 and 51963016)the support from the Natural Science Foundation of Jiangxi Province(20224ACB214006 and 20232ACB204005)。
文摘At present,the development of perovskite solar cells(PSCs)is progressing rapidly,but the issue of poor stability remains a significant challenge.Achieving a stable precursor solution is crucial for the large-scale production of high-quality PSC films.In this study,we successfully developed a strategy to improve the long-term stability of the precursor solution and improve device performance by employing 1-n-butyl-3-methylimidazolium di-n-butyl phosphate(BMIMBP)as an anti-aging additive.The BP−component inhibits the reactivity of I−and formamidinium ion through multiple chemical bonds,thereby stabilizing the precursor solution.In addition,the BMIM+component,which contains an amino group,can form two-dimensional perovskite internally,further enhancing the device stability.This strategy provides valuable guidance for achieving long-term stability in solar cells.
