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碘化铅钙钛矿敏化全固态亚微米薄膜介观太阳能电池，能量转换效率超过 9%。

Lead iodide perovskite sensitized all-solid-state submicron thin film mesoscopic solar cell with efficiency exceeding 9%.

机构信息

School of Chemical Engineering and Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea.

出版信息

Sci Rep. 2012;2:591. doi: 10.1038/srep00591. Epub 2012 Aug 21.

DOI:10.1038/srep00591
PMID:22912919
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3423636/
Abstract

We report on solid-state mesoscopic heterojunction solar cells employing nanoparticles (NPs) of methyl ammonium lead iodide (CH(3)NH(3))PbI(3) as light harvesters. The perovskite NPs were produced by reaction of methylammonium iodide with PbI(2) and deposited onto a submicron-thick mesoscopic TiO(2) film, whose pores were infiltrated with the hole-conductor spiro-MeOTAD. Illumination with standard AM-1.5 sunlight generated large photocurrents (J(SC)) exceeding 17 mA/cm(2), an open circuit photovoltage (V(OC)) of 0.888 V and a fill factor (FF) of 0.62 yielding a power conversion efficiency (PCE) of 9.7%, the highest reported to date for such cells. Femto second laser studies combined with photo-induced absorption measurements showed charge separation to proceed via hole injection from the excited (CH(3)NH(3))PbI(3) NPs into the spiro-MeOTAD followed by electron transfer to the mesoscopic TiO(2) film. The use of a solid hole conductor dramatically improved the device stability compared to (CH(3)NH(3))PbI(3) -sensitized liquid junction cells.

摘要

我们报告了采用纳米颗粒（NPs）的固态介观异质结太阳能电池，这些纳米颗粒为甲胺铅碘（CH（3）NH（3））PbI（3），用作光收集器。钙钛矿 NPs 通过碘化甲胺与 PbI（2）的反应生成，并沉积在亚微米厚的介观 TiO（2）薄膜上，介观 TiO（2）薄膜的孔中渗透有空穴导体螺[MeOTAD]。用标准 AM-1.5 太阳光照射，产生了超过 17 mA/cm（2）的大光电流（J（SC）），开路光电压（V（OC））为 0.888 V，填充因子（FF）为 0.62，功率转换效率（PCE）为 9.7%，这是迄今为止此类电池中报道的最高值。飞秒激光研究结合光致吸收测量表明，电荷分离是通过从激发态的（CH（3）NH（3））PbI（3）NPs 中注入空穴到螺[MeOTAD]中进行的，然后电子转移到介观 TiO（2）薄膜中。与（CH（3）NH（3））PbI（3）敏化的液体结电池相比，使用固体空穴导体显著提高了器件稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/9a4c0f3c08d8/srep00591-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/72fc41984284/srep00591-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/1950688bf11c/srep00591-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/68cafb2d7b0c/srep00591-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/40d0b20f453e/srep00591-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/e1ea0330c59f/srep00591-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/97cdf446a4e6/srep00591-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/9a4c0f3c08d8/srep00591-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/72fc41984284/srep00591-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/1950688bf11c/srep00591-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/68cafb2d7b0c/srep00591-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/40d0b20f453e/srep00591-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/e1ea0330c59f/srep00591-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/97cdf446a4e6/srep00591-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b70/3423636/9a4c0f3c08d8/srep00591-f7.jpg

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