TY - JOUR
T1 - Stable perovskite solar cells using tin acetylacetonate based electron transporting layers
AU - Abuhelaiqa, Mousa
AU - Paek, Sanghyun
AU - Lee, Yonghui
AU - Cho, Kyung Taek
AU - Heo, Sung
AU - Oveisi, Emad
AU - Huckaba, Aron Joel
AU - Kanda, Hiroyuki
AU - Kim, Hobeom
AU - Zhang, Yi
AU - Humphry-Baker, Robin
AU - Kinge, Sachin
AU - Asiri, Abdullah M.
AU - Nazeeruddin, Mohammad Khaja
N1 - Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019/6
Y1 - 2019/6
N2 - Organic-inorganic lead halide perovskites with over 23% power conversion efficiency have attracted enormous academic and industrial attention due to their low-cost fabrication and high device performance. Self-passivated tin oxide as an electron transport layer has shown potential mainly due to the enhanced electron transfer, stability and reduced hysteresis device features. Here we report on novel, non-colloidal tin oxide precursors based on acetylacetonate (one halide free and two halogenated with Cl and Br respectively). We explore the unique film morphology acquired from the non-colloidal precursors and the improved device performance they yield. Our results show that the halide residue in the films plays an impactful role in the thermal durability of the fabricated SnO2 film, as well as providing a passivation layer. Moreover, our optimized tin oxide films achieved an unprecedented power conversion efficiency of 22.19% in planar perovskite solar cells (21.4% certified by Newport), and once upscaled to large-area modules, 16.7% devices based on a 15 cm2 area were achieved.
AB - Organic-inorganic lead halide perovskites with over 23% power conversion efficiency have attracted enormous academic and industrial attention due to their low-cost fabrication and high device performance. Self-passivated tin oxide as an electron transport layer has shown potential mainly due to the enhanced electron transfer, stability and reduced hysteresis device features. Here we report on novel, non-colloidal tin oxide precursors based on acetylacetonate (one halide free and two halogenated with Cl and Br respectively). We explore the unique film morphology acquired from the non-colloidal precursors and the improved device performance they yield. Our results show that the halide residue in the films plays an impactful role in the thermal durability of the fabricated SnO2 film, as well as providing a passivation layer. Moreover, our optimized tin oxide films achieved an unprecedented power conversion efficiency of 22.19% in planar perovskite solar cells (21.4% certified by Newport), and once upscaled to large-area modules, 16.7% devices based on a 15 cm2 area were achieved.
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U2 - 10.1039/c9ee00453j
DO - 10.1039/c9ee00453j
M3 - Article
AN - SCOPUS:85067394860
SN - 1754-5692
VL - 12
SP - 1910
EP - 1917
JO - Energy and Environmental Science
JF - Energy and Environmental Science
IS - 6
ER -
