Bifacial, Color-Tunable Semitransparent Perovskite Solar Cells for Building-Integrated Photovoltaics.,ACS Applied Materials & Interfaces

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Bifacial, Color-Tunable Semitransparent Perovskite Solar Cells for Building-Integrated Photovoltaics.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-12-20 , DOI: 10.1021/acsami.9b15488
Hao Wang ₁ , Herlina Arianita Dewi ₁ , Teck Ming Koh ₁ , Annalisa Bruno ₁ , Subodh Mhaisalkar _{1,

2} , Nripan Mathews _{1,

2}

Affiliation

Recently, semitransparent perovskite solar cells (ST-PSCs) have received overwhelming attention due to their potential applications in building-integrated photovoltaics (BIPV) and in tandem solar cells. The best ST-PSCs, despite the high efficiency achieved, still show limited bifacial properties and lack esthetic properties. Here, we have demonstrated efficient bifacial colorful ST-PSCs using copper thiocyanate (CuSCN), as a hole-transporting material, in an n-i-p architecture. The n-i-p ST-PSCs exhibit the highest reported bifacial factor of 93.7% and achieve a bifacial equivalent efficiency of 22.1% when illuminated under 1 sun standard conditions on the front side and with a reflected albedo of ∼54.4% from the back side. We have also demonstrated that the colorful appearance of CuSCN-based ST-PSCs can be easily tuned across the entire visible spectrum by tuning either the indium tin oxide (ITO) or the CuSCN thickness without affecting their final efficiency. The wide colorful tunability and excellent bifacial photovoltaic behavior of CuSCN-based ST-PSCs make them a promising candidate for BIPV applications.

中文翻译：

用于建筑集成光伏的双面可彩色可调半透明钙钛矿太阳能电池。

近来，半透明钙钛矿太阳能电池（ST-PSC）由于在建筑集成光伏（BIPV）和串联太阳能电池中的潜在应用而受到了广泛的关注。最好的ST-PSC尽管获得了很高的效率，但仍然显示出有限的双面特性并且缺乏美学特性。在这里，我们展示了在压区体系结构中使用硫氰酸铜（CuSCN）作为空穴传输材料的高效双面彩色ST-PSC。nip ST-PSC的双面系数最高，为93.7％，当在1种阳光标准条件下进行正面照射时，双面等效效率为22.1％，从背面反射的反照率约为54.4％。我们还证明，通过调节铟锡氧化物（ITO）或CuSCN的厚度，可以很容易地在整个可见光谱范围内调节基于CuSCN的ST-PSC的彩色外观，而不会影响其最终效率。基于CuSCN的ST-PSC具有广泛的彩色可调性和出色的双面光伏性能，使其成为BIPV应用的有希望的候选者。

更新日期：2019-12-20

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