Perovskite Heterostructures by Vapour Deposition

气相沉积钙钛矿异质结构

• 批准号: EP/P006329/1
• 负责人: Michael Johnston
• 金额: $ 144.38万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FP006329%2F1
• 关键词: Perovskite; Heterostructures; Vapour; Deposition

There is currently a pressing global need to reduce emissions of carbon dioxide, and at the same time satisfy the world's growing desire for cheap electricity. Solar cells, which directly convert the Sun's radiation into electricity, offer a realistic method of generating electricity sustainably, on a large scale and at costs similar to and even lower than more polluting conventional forms of power generation (coal, gas, nuclear). Over the past few years a new class of solar cells based on metal-halide perovskite semiconductors has emerged. Power conversion efficiencies for these materials have increased at an unprecedented rate for a new photovoltaics material and now exceed 20%. An intense worldwide research effort into these materials is now underway; however nearly all research is focussed on solution processed perovskites, and most highly efficient solar cells are small area devices not suited to large area deployment. In this project we will build on our early lead in the area of vapour deposited perovskites to develop highly efficient large area perovskite solar cells. Our evaporation technique offers superior film uniformity over large areas and is highly reproducible as compared with more common solution processing methods. Using the vapour deposition route we will develop all-perovskite tandem and multi-junction solar cells to further improve the efficiency for these remarkable devices. We utilise the recently funded EPSRC "National thin-film cluster facility for advanced functional materials" to adapt our advances in perovskite materials and device technologies to current industrial thin-film production methods.

目前，全球迫切需要减少二氧化碳的排放，同时满足世界对廉价电力日益增长的需求。太阳能电池直接将太阳辐射转化为电能，提供了一种可持续发电的现实方法，其大规模和成本与污染更严重的传统发电方式（煤、天然气、核能）相似，甚至更低。在过去的几年里，一种基于金属卤化物钙钛矿半导体的新型太阳能电池已经出现。对于一种新的光伏材料来说，这些材料的功率转换效率以前所未有的速度增长，现在超过了20%。目前，全世界正在对这些材料进行激烈的研究；然而，几乎所有的研究都集中在溶液处理钙钛矿上，而且大多数高效太阳能电池都是小面积设备，不适合大面积部署。在这个项目中，我们将以我们在气相沉积钙钛矿领域的早期领先地位为基础，开发高效的大面积钙钛矿太阳能电池。与更常见的溶液处理方法相比，我们的蒸发技术在大面积上提供了优越的薄膜均匀性，并且具有很高的可重复性。利用气相沉积方法，我们将开发全钙钛矿串联和多结太阳能电池，以进一步提高这些卓越设备的效率。我们利用最近资助的EPSRC“国家先进功能材料薄膜集群设施”来适应我们在钙钛矿材料和器件技术方面的进步，以适应当前的工业薄膜生产方法。

项目成果

Large-Area, Highly Uniform Evaporated Formamidinium Lead Triiodide Thin Films for Solar Cells

• DOI: 10.1021/acsenergylett.7b00967
• 发表时间: 2017-12-01
• 期刊: ACS ENERGY LETTERS
• 影响因子: 22
• 作者: Borchert, Juliane;Milot, Rebecca L.;Johnston, Michael B.
• 通讯作者: Johnston, Michael B.

Understanding Dark Current-Voltage Characteristics in Metal-Halide Perovskite Single Crystals

• DOI: 10.1103/physrevapplied.15.014006
• 发表时间: 2021-01-06
• 期刊: PHYSICAL REVIEW APPLIED
• 影响因子: 4.6
• 作者: Duijnstee, Elisabeth A.;Le Corre, Vincent M.;Snaith, Henry J.
• 通讯作者: Snaith, Henry J.

Bimolecular recombination in methylammonium lead triiodide perovskite is an inverse absorption process.

三二二二二二二二二二何二二二二二二二二二酯铅的双分子重组是一个反吸收过程。

• DOI: 10.1038/s41467-017-02670-2
• 发表时间: 2018-01-18
• 期刊: Nature communications
• 影响因子: 16.6
• 作者: Davies CL;Filip MR;Patel JB;Crothers TW;Verdi C;Wright AD;Milot RL;Giustino F;Johnston MB;Herz LM
• 通讯作者: Herz LM

Efficient energy transfer mitigates parasitic light absorption in molecular charge-extraction layers for perovskite solar cells.

• DOI: 10.1038/s41467-020-19268-w
• 发表时间: 2020-11-02
• 期刊: Nature communications
• 影响因子: 16.6
• 作者: Eggimann HJ;Patel JB;Johnston MB;Herz LM
• 通讯作者: Herz LM

Temperature-Dependent Refractive Index of Quartz at Terahertz Frequencies

• DOI: 10.1007/s10762-018-0538-7
• 发表时间: 2018-12-01
• 期刊: JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
• 影响因子: 2.9
• 作者: Davies, Christopher L.;Patel, Jay B.;Johnston, Michael B.
• 通讯作者: Johnston, Michael B.