前驱体混合比例对CH3NH3PbI3钙钛矿薄膜微观结构及光伏器件性能的影响

季庚午; 张晓楠; 杨迎国; 赵滨; 文闻; 高兴宇

doi:10.11889/j.0253-3219.2016.hjs.39.120101

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前驱体混合比例对CH₃NH₃PbI₃钙钛矿薄膜微观结构及光伏器件性能的影响

同步辐射技术及应用 | 更新时间：2021-05-24

- 前驱体混合比例对CH₃NH₃PbI₃钙钛矿薄膜微观结构及光伏器件性能的影响
  封面论文
- Influences of precursor ratio on microstructure of perovskite CH₃NH₃PbI₃ film and photoelectric conversion properties of perovskite solar cell
- 核技术 2016年39卷第12期文章编号：120101
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800
  2.中国科学院大学北京 100049
  3.中国科学院微观界面物理与探测重点实验室上海 201800
- 作者简介：
  
  [ "季庚午, 男, 1990年出生, 2012年毕业于河海大学, 现为博士研究生, 主要从事钙钛矿薄膜的制备、表征以及性能测试研究", "JI Gengwu, male, born in 1990, graduated from Hohai University in 2012, doctoral student, mainly engaged in the preparation, characterization and performance testing research of perovskite films" ]
  杨迎国, E-mail:yangyingguo@sinap.ac.cn YANG Yingguo, E-mail:yangyingguo@sinap.ac.cn
  高兴宇, E-mail:gaoxingyu@sinap.ac.cn GAO Xingyu, E-mail:gaoxingyu@sinap.ac.cn
- 基金信息：
  
  国家自然科学基金(No.11175239);国家自然科学基金(No.11605278);国家自然科学基金(No.11675252)
- DOI：10.11889/j.0253-3219.2016.hjs.39.120101
  中图分类号： TL99
- 收稿日期：2016-09-18，
  
  修回日期：2016-11-03，
  
  纸质出版日期：2016-12
- 稿件说明：
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季庚午, 张晓楠, 杨迎国, 等. 前驱体混合比例对CH₃NH₃PbI₃钙钛矿薄膜微观结构及光伏器件性能的影响[J]. 核技术, 2016,39(12):120101

Gengwu JI, Xiaonan ZHANG, Yingguo YANG, et al. Influences of precursor ratio on microstructure of perovskite CH₃NH₃PbI₃ film and photoelectric conversion properties of perovskite solar cell[J]. Nuclear techniques, 2016, 39(12): 120101
季庚午, 张晓楠, 杨迎国, 等. 前驱体混合比例对CH₃NH₃PbI₃钙钛矿薄膜微观结构及光伏器件性能的影响[J]. 核技术, 2016,39(12):120101 DOI： 10.11889/j.0253-3219.2016.hjs.39.120101.

Gengwu JI, Xiaonan ZHANG, Yingguo YANG, et al. Influences of precursor ratio on microstructure of perovskite CH₃NH₃PbI₃ film and photoelectric conversion properties of perovskite solar cell[J]. Nuclear techniques, 2016, 39(12): 120101 DOI： 10.11889/j.0253-3219.2016.hjs.39.120101.

摘要

有机-无机杂化钙钛矿太阳能电池具有优异的光电性质、简单的制备工艺等优点，短短几年内其最高光电转换效率已超过21%，成为高效太阳能电池非常有前景的研发热点。一步溶液旋涂法是目前CH

PbI

等钙钛矿材料使用最广泛、最简便的制备方法。在制备中前驱体混合比例尤为关键，在一定程度上决定着薄膜结晶质量、表面形貌以及表面化学成分，并对最终器件效率产生重要影响。利用同步辐射掠入射X射线衍射（Grazing incidence X-ray diffraction，GIXRD）、扫描电子显微镜（Scanning electron microscopy，SEM）和X射线光电子能谱（X-ray photoelectron spectroscopy，XPS）系统地研究了不同前驱体混合比例对CH

PbI

薄膜的结晶机理、表面形貌及化学组分的影响。研究结果表明，增加CH

I的混合比例虽然会增强钙钛矿晶体的织构现象、提升钙钛矿薄膜表面覆盖率，但器件效率大幅下降。XPS结果表明，钙钛矿薄膜中前驱体碘甲胺和碘化铅反应不充分，残余驱体聚集在薄膜表面，这将导致器件载流子传输层/钙钛矿薄膜界面处载流子收集能力的降低，进而导致器件性能的降低。研究结果将为深入理解前驱体比例对高质量钙钛矿薄膜制备以及钙钛矿太阳能电池的光电转换性能和稳定性的影响机制提供必要的实验依据和指导。

Abstract

Background:

Organometal perovskite solar cells (PSCs) have attracted widespread consideration due to their conversion efficiency exceeding 20%. Because their outstanding photoelectric properties and their preparation process are often simple

among which one-step process has been most widely used.

Purpose:

This study aims to determine whether the mixing ratio of the precursor CH

I and PbI

is particularly critical for the preparation of CH

PbI

film

and thus influences the performance of PSCs.

Methods:

Synchrotron-based grazing incidence X-ray diffraction (GIXRD)

scanning electron microscopy (SEM)

and X-ray photoelectron spectroscopy (XPS) were employed to study the microstructure

surface morphology

chemical compositions of CH

PbI

film prepared using one-step process with different precursor (CH

I and PbI

) ratios.

Results:

Results of GIXRD showed that the increase of CH

I portion would reduce the degree of perovskite crystallinity with CH

I and few PbI

residue but enhance their preferential orientation along the out-of-plane direction

especially that of the perovskite (110) plane. In addition

a higher proportion of precursor CH

I improved the surface morphology of the perovskite film with a better coverage as revealed by SEM. On the other hand

XPS results demonstrated that the increasing CH

I portion caused Pb and I to enrich on the surface.

Conclusion:

The present study explored the influence of the mixing ratios of the precursors on the microstructure

surface morphology of perovskite films

as well as the device performance

which would provide experimental basis and guidance for preparing perovskite films for high performance perovskite solar cells with improved stability.

关键词

Keywords

references

A Kojima , K Teshima , Y Shirai , . Organometal halide perovskites as visible-light sensitizers for photovoltaic cells . Journal of the American Chemical Society , 2009 . 131 ( 17 ): 6050 - 6051 . DOI: 10.1021/ja809598r http://doi.org/10.1021/ja809598r .

W S Yang , J H Noh , N J Jeon , . High-performance photovoltaic perovskite layers fabricated through intramolecular exchange . Science , 2015 . 348 ( 6240 ): 1234 - 1237 . DOI: 10.1126/science.aaa9272 http://doi.org/10.1126/science.aaa9272 .

M Saliba , T Matsui , J Y Seo , . Cesium-containing triple cation perovskite solar cells:improved stability, reproducibility and high efficiency . Energy & Environmental Science , 2016 . 9 ( 6 ): 1989 - 1997 . DOI: 10.1039/c5ee03874j http://doi.org/10.1039/c5ee03874j .

Q Dong , Y Fang , Y Shao , . Electron-hole diffusion lengths>175 μm in solution-grown CH3NH3PbI3 single crystals . Science , 2015 . 347 ( 6225 ): 967 - 970 . DOI: 10.1126/science.aaa5760 http://doi.org/10.1126/science.aaa5760 .

S D Stranks , G E Eperon , G Grancini , . Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber . Science , 2013 . 342 ( 6156 ): 341 - 344 . DOI: 10.1126/science.1243982 http://doi.org/10.1126/science.1243982 .

P Gao , M Grätzel , M K Nazeeruddin . Organohalide lead perovskites for photovoltaic applications . Energy & Environmental Science , 2014 . 7 ( 8 ): 2448 - 2463 . DOI: 10.1039/c4ee00942h http://doi.org/10.1039/c4ee00942h .

T C Sum , N Mathews . Advancements in perovskite solar cells:photophysics behind the photovoltaics . Energy & Environmental Science , 2014 . 7 ( 8 ): 2518 - 2534 . DOI: 10.1039/c4ee00673a http://doi.org/10.1039/c4ee00673a .

T B Song , Q Chen , H Zhou , . Perovskite solar cells:film formation and properties . Journal Materials Chemistry A , 2015 . 3 ( 17 ): 9032 - 9050 . DOI: 10.1039/c4ta05246c http://doi.org/10.1039/c4ta05246c .

H S Jung , N G Park . Perovskite solar cells:from materials to devices . Small , 2014 . 11 ( 1 ): 10 - 25 . DOI: 10.1002/smll.201402767 http://doi.org/10.1002/smll.201402767 .

H Zhou , Q Chen , G Li , . Interface engineering of highly efficient perovskite solar cells . Science , 2014 . 345 ( 6196 ): 542 - 546 . DOI: 10.1126/science.1254050 http://doi.org/10.1126/science.1254050 .

J H Im , H S Kim , N G Park . Morphology-photovoltaic property correlation in perovskite solar cells:one-step versus two-step deposition of CH 3 NH 3 PbI 3 . APL Materials , 2014 . 2 ( 8 ): 81510 DOI: 10.1063/1.4891275 http://doi.org/10.1063/1.4891275 .

M Liu , M B Johnston , H J Snaith . Efficient planar heterojunction perovskite solar cells by vapour deposition . Nature , 2013 . 501 ( 7467 ): 395 - 398 . DOI: 10.1038/nature12509 http://doi.org/10.1038/nature12509 .

Q Chen , H Zhou , Z Hong , . Planar heterojunction perovskite solar cells via vapor-assisted solution process . Journal of the American Chemical Society , 2014 . 136 ( 2 ): 622 - 625 . DOI: 10.1021/ja411509g http://doi.org/10.1021/ja411509g .

M M Lee , J Teuscher , T Miyasaka , . Efficient hybrid solar cells based on meso-superstructured organometal halide perovskites . Science , 2012 . 338 ( 6107 ): 643 - 647 . DOI: 10.1126/science.1228604 http://doi.org/10.1126/science.1228604 .

N Pellet , P Gao , G Gregori , . Mixed-organic-cation perovskite photovoltaics for enhanced solar-light harvesting . Angewandte Chemie International Edition , 2014 . 53 ( 12 ): 3151 - 3157 . DOI: 10.1002/anie.201309361 http://doi.org/10.1002/anie.201309361 .

F Hao , C C Stoumpos , R P H Chang , . Anomalous band gap behavior in mixed Sn and Pb perovskites enables broadening of absorption spectrum in solar cells . Journal of the American Chemical Society , 2014 . 136 ( 22 ): 8094 - 8099 . DOI: 10.1021/ja5033259 http://doi.org/10.1021/ja5033259 .

H Yu , F Wang , F Xie , . The role of chlorine in the formation process of "CH 3 NH 3 PbI 3-x Cl x " perovskite . Advanced Functional Materials , 2014 . 24 ( 45 ): 7102 - 7108 . DOI: 10.1002/adfm.201401872 http://doi.org/10.1002/adfm.201401872 .

Z K Wang , M Li , Y G Yang , . High efficiency Pb-In binary metal perovskite solar cells . Advanced Materials , 2016 . 28 6695 - 6703 . DOI: 10.1002/adma.201600626 http://doi.org/10.1002/adma.201600626 .

M Qian , M Li , X B Shi , . Planar perovskite solar cells with 15.75% power conversion efficiency by cathode and anode interfacial modification . Journal of Materials Chemistry A , 2015 . 3 ( 25 ): 13533 - 13539 . DOI: 10.1039/c5ta02265g http://doi.org/10.1039/c5ta02265g .

T Y Yang , W Wen , G Z Yin , . Introduction of the X-ray diffraction beamline of SSRF . Nuclear Science and Techniques , 2015 . 26 ( 2 ): 020101 DOI: 10.13538/j.1001-8042/nst.26.020101 http://doi.org/10.13538/j.1001-8042/nst.26.020101 .

Z Wu , S Bai , J Xiang , . Efficient planar heterojunction perovskite solar cells employing graphene oxide as hole conductor . Nanoscale , 2014 . 6 ( 18 ): 10505 DOI: 10.1039/c4nr03181d http://doi.org/10.1039/c4nr03181d .

Z L Tseng , C H Chiang , C G Wu . Surface engineering of ZnO thin film for high efficiency planar perovskite solar cells . Scientific Reports , 2015 . 5 13211 DOI: 10.1038/srep13211 http://doi.org/10.1038/srep13211 .

J S Yun , A Ho-Baillie , S Huang , . Benefit of grain boundaries in organic-inorganic halide planar perovskite solar cells . The Journal of Physical Chemistry Letters , 2015 . 6 ( 5 ): 875 - 880 . DOI: 10.1021/acs.jpclett.5b00182 http://doi.org/10.1021/acs.jpclett.5b00182 .

Y Yang , S Feng , M Li , . Structure, optical absorption, and performance of organic solar cells improved by gold nanoparticles in buffer layers . ACS Applied Materials & Interfaces , 2015 . 7 ( 44 ): 24430 - 24437 . DOI: 10.1021/acsami.5b07983 http://doi.org/10.1021/acsami.5b07983 .

G E Eperon , V M Burlakov , P Docampo , . Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells . Advanced Functional Materials , 2014 . 24 ( 1 ): 151 - 157 . DOI: 10.1002/adfm.201302090 http://doi.org/10.1002/adfm.201302090 .

J H Scofield . Hartree-Slater subshell photoionization cross-sections at 1254 eV and 1487 eV . Journal of Electron Spectroscopy and Related Phenomena , 1976 . 8 ( 2 ): 129 - 137 . DOI: 10.1016/0368-2048(76)80015-1 http://doi.org/10.1016/0368-2048(76)80015-1 .

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