钙钛矿前驱体溶液其实是分散胶体而非纯溶液,胶体颗粒可作为非均相成核点,并在溶液中进一步生长为块状结构,从而影响钙钛矿薄膜的形态和结晶性能。
溶液中的前驱体的纯度会影响钙钛矿薄膜的特性,如晶体生长、电荷载流子动力学和电子/空穴扩散长度等。例如:与高纯的PBI2(99.999%)相比,纯度为98%的PBI2材料结晶度较低,电荷载流子寿命和扩散长度下降,这是因为大体积薄膜中的杂质可作为诱导陷阱,降低光伏性能。因此选择纯度较高的钙钛矿前驱体对光伏器件的研究至关重要。
品名 | CAS | 货号 |
---|---|---|
Aniline hydroiodide, 98%, for perovskite solar cell 苯胺氢碘酸盐 | 45497-73-2 | 1862360 |
Benzylamine hydrobromide, 98%, for perovskite solar cell 苄胺氢溴酸盐 | 37488-40-7 | 1474645 |
Cesium bromide, 99.999%, for perovskite solar cell, superdry 溴化铯 | 7787-69-1 | 988557 |
Cesium carbonate, 99.9% 碳酸铯 | 534-17-8 | 326442 |
Cesium iodide, 99.9%, trace metals basis 碘化铯 | 7789-17-5 | 977246 |
Dimethylamine hydroiodide, 99.8%, for perovskite solar cell 二甲胺氢碘酸盐 | 51066-74-1 | 9005491 |
Formamidine hydroiodide, 99.99%, for perovskite solar cell 甲脒氢碘酸盐 | 879643-71-7 | 956035 |
Formamidine hydrochloride, 99.9%, for perovskite solar cell, purified four times 甲脒盐酸盐 | 6313-33-3 | 921418 |
Lead(II) bromide, 99.999%, for perovskite solar cell use, super dry 二溴化铅 | 10031-22-8 | 961337 |
Lead(II) iodide, 99.999%, for perovskite solar cell, super dry large crystal 碘化亚铅 | 10101-63-0 | 979463 |
Methylamine hydrochloride, 99.9%, for perovskite solar cell, purified four times 甲胺盐酸盐 | 593-51-1 | 948868 |
Propylamine hydroiodide, 98%, for perovskite solar cell 丙胺氢碘酸盐 | 14488-45-0 | 9005528 |
Tin(II) bromide, 99.999%, for perovskite solar cell 溴化锡(II) | 10031-24-0 | 604754 |
品名 | CAS | 货号 |
---|---|---|
Acetonitrile, 99.9%, SuperDry, with molecular sieves, J&KSeal 乙腈 | 75-05-8 | 939631 |
N,N-Dimethylacetamide, 99.8%, SuperDry, J&KSeal N,N-二甲基乙酰胺 | 127-19-5 | 951007 |
N,N-Dimethylformamide, 99.8%, SuperDry, J&KSeal N,N-二甲基甲酰胺 | 68-12-2 | 966438 |
Dimethyl sulfoxide, 99.9%, SuperDry, J&KSeal 二甲基亚砜 | 67-68-5 | 935690 |
Ethyl acetate, 99.9%, SuperDry, with molecular sieves, J&KSeal 乙酸乙酯 | 141-78-6 | 920352 |
n-Hexane, 97.5%, SuperDry, J&Kseal, water:≤50 ppm 正己烷 | 110-54-3 | 947770 |
1-Methyl-2-pyrrolidinone, 99.5%, SuperDry, J&KSeal 1-甲基-2-吡咯烷酮 | 872-50-4 | 917493 |