Recent progress in low dimensional (quasi-2D) and mixed dimensional (2D/3D) tin-based perovskite solar cells,Sustainable Energy & Fuels

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Recent progress in low dimensional (quasi-2D) and mixed dimensional (2D/3D) tin-based perovskite solar cells
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-11-2 , DOI: 10.1039/d0se01520b
Malouangou Maurice Davy _{1,

2,

3,

4,

5} , Tsiba Matondo Jadel _{1,

2,

3,

4,

5} , Chen Qin _{1,

2,

3,

4,

5} , Bai Luyun _{1,

2,

3,

4,

5} , Guli Mina _{1,

2,

3,

4,

5}

Affiliation

Low dimensional (quasi-2D) and mixed dimensional (2D/3D) halide perovskites have emerged in the field of perovskite solar cells. They are more stable than their 3D homologs. However, most of the high efficiency perovskite solar cells contain lead, which is toxic; this toxicity impedes the deployment of this technology through mass production and commercialization. Much effort has been made to reduce the toxicity in perovskite solar cells, which is conducive to the development of environmentally friendly halide perovskite solar cells. Moreover, Sn is currently the most promising element to replace lead and develop lead free perovskite solar cells. Indeed, the high sensitivity of Sn²⁺ cations towards moisture and oxygen was a huge challenge for preparing stable solar cells. However, this issue has been solved by incorporating organic ammonium cations with different sizes and functional groups, which not only reduce the dimensions from 3D to quasi-2D but also improve their environmental stability. Quasi-2D perovskites have been actively explored to overcome the poor environmental stability of perovskite solar cells, owing to the hydrophobic nature of the large organic cations. Another important approach consisted of appropriately tuning the number of alkyl ammonium cations in the 3D perovskite precursor solution and providing mixed 2D/3D perovskites, which was also shown to be an effective method to produce stable and efficient perovskite solar cells by remarkably blocking the intrusion of moisture from the external atmosphere into the vulnerable 3D perovskite part. In this paper, we provide a brief review of recent advancements in two (quasi 2D) and mixed dimensional (2D/3D) Sn-based perovskite solar cells.

中文翻译：

低尺寸（准2D）和混合尺寸（2D / 3D）锡基钙钛矿太阳能电池的最新进展

在钙钛矿太阳能电池领域中出现了低维（准2D）和混合维（2D / 3D）卤化物钙钛矿。它们比3D同源物更稳定。但是，大多数高效钙钛矿太阳能电池都含有铅，这种铅是有毒的。这种毒性阻碍了通过大规模生产和商业化应用该技术。为了降低钙钛矿太阳能电池中的毒性已经做出了很多努力，这有助于开发环境友好的卤化物钙钛矿太阳能电池。此外，锡是目前最有希望替代铅并开发无铅钙钛矿太阳能电池的元素。确实，Sn ²⁺的高灵敏度水分和氧气中的阳离子是制备稳定太阳能电池的巨大挑战。但是，通过引入具有不同尺寸和官能团的有机铵阳离子已解决了该问题，这不仅将尺寸从3D减小到准2D，而且还改善了其环境稳定性。由于大型有机阳离子的疏水性，已经积极探索准2D钙钛矿来克服钙钛矿太阳能电池不良的环境稳定性。另一个重要的方法包括适当调整3D钙钛矿前体溶液中烷基铵阳离子的数量，并提供混合的2D / 3D钙钛矿，通过显着地阻止水分从外部大气侵入易受伤害的3D钙钛矿部件，这也被证明是生产稳定，高效的钙钛矿太阳能电池的有效方法。在本文中，我们简要概述了两种（准2D）和混合尺寸（2D / 3D）锡基钙钛矿太阳能电池的最新进展。

更新日期：2020-12-17

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