2D-Antimonene-assisted hetero-epitaxial growth of perovskite films for efficient solar cells

Han, Yu; Zuo, Tiantian; He, Kun; Yang, Lu; Zhan, Shiping; Liu, Zhike; Ma, Zelin; Xu, Jie; Che, Yuhang; Zhao, Wenjing; Yuan, Ningyi; Ding, Jianning; Sun, Jie; He, Xuexia; Liu, Shengzhong

doi:10.1016/j.mattod.2022.10.020

Cited by 12 publications

(18 citation statements)

References 51 publications

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“…The control device delivered a V TFL of 0.237 V and N t of 5.73 × 10 15 cm −3 , while the PSMA enabled devices to show a much smaller V TFL of 0.121 V and N t of 2.93 × 10 15 cm −3 (Figure S7, Supporting Information). [ 33 ] Lower trap density can reduce the nonradiative recombination of charge carriers. These results further verify the effectiveness of our passivation strategy.…”

Section: Resultsmentioning

confidence: 99%

Surface Regulation with Polymerized Small Molecular Acceptor Towards Efficient Inverted Perovskite Solar Cells

Huang

et al. 2023

Advanced Energy Materials

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Optimizing the interface between the perovskite and transport layers is an efficient approach to promote the photovoltaic performance of inverted perovskite solar cells (IPSCs). Given decades of advances in bulk materials optimization, the performance of IPSCs has been pushed to its limits by interface engineering with a power conversion efficiency (PCE) over 25% and excellent stability. Herein, an n‐type polymeric semiconducting material, PY‐IT, that has shown remarkable performance in organic photovoltaics, is introduced as an interface regulator between perovskite and ETL. Encouragingly, this polymerized small molecular acceptor (PSMA) exhibits significant effectiveness in both passivation defects and electron transfer facilitation properties with the merits of strong planarity and rotatable linkers, which significantly optimizes perovskite grain growth orientation and added charge transport channels. As a result, the PSMA‐treated IPSC devices obtain an optimal efficiency of 23.57% with a fill factor of 84%, among the highest efficiency among PSMA‐based IPSCs. Meanwhile, the photo‐stability of PSMA devices is eye‐catching, maintaining ≈80% of its initial PCE after 1000 h of simulated 1‐sun illumination under maximal power point tracking. This work combines the achievements of polymer science and IPSC device engineering to provide a new insight into interface regulation of efficient and stable devices.

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Section: Resultsmentioning

confidence: 99%

Surface Regulation with Polymerized Small Molecular Acceptor Towards Efficient Inverted Perovskite Solar Cells

Huang

et al. 2023

Advanced Energy Materials

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“…Furthermore, the uneven size of perovskite grains, lattice defects, and other imperfections in the preparation process could lead to unsatisfactory perovskite films, resulting in decreased PCE and poor stability of PSCs. Previous research has shown that some materials contain active amino or carboxyl groups, such as organic amine compounds , and organic acid compounds, , which react with defects on the surface of perovskite by forming stable chemical bonds to passivate the defects.…”

Section: Resultsmentioning

confidence: 99%

Multilateral Passivation Strategy in Post-Synthetic Flexible Metal–Organic Frameworks for Enhancing Perovskite Solar Cells

Zhang

Cao

et al. 2023

Inorg. Chem.

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The photovoltaic performance of perovskite solar cells is severely limited by the innate defects of perovskite films. Metal−organic framework (MOF)-based additives with luxuriant skeleton structures and tailored functional groups show a huge potential to solve these problems. Here, a multilateral passivation strategy is performed by introducing two alkyl-sulfonic acid functionalized MOFs, MIL-88B-1,3-SO 3 H and MIL-88B-1,4-SO 3 H, respectively, obtained from MIL-88B-NH 2 through a postsynthetic process, for coordinating the lead defects and inhibiting nonradiative recombination. The flexible MIL-88B-type frameworks endow both functionalized MOFs with excellent electrical conductivity and preferable carrier transport in the hole-transport materials. Compared with the original MIL-88B-NH 2 and MIL-88B-1,4-SO 3 H, MIL-88B-1,3-SO 3 H exhibits optimal steric hindrance and multiple passivation groups (−NH 2 , −NH−, and −SO 3 H), achieving the champion doped device with an enhanced power conversion efficiency (PCE) of 22.44% and excellent stability, which maintains 92.8% of the original PCE under ambient conditions (40% humidity and 25 °C) for 1200 h.

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“…Han et al introduced antimonene nanosheets (ANs) onto the surface of perovskite thin films by electrochemical lithiation intercalation and the ultrasonication method. 85 Due to the good lattice matching between the (012) plane of ANs and the (002) plane of MA 0.15 FA 0.85 PbI 3 perovskite (Figure 9d), ANs can serve as effective heterogeneous nucleation sites, promoting the oriented growth of perovskite along the (002) plane of ANs, resulting in high-quality perovskite films with preferred orientation along the [001] direction and significantly increased grain size. Clear lattice fringes for Sb and perovskite, as well as a coherent interface between the perovskite and ANs, were observed in the HR-TEM images (Figure 9e).…”

Section: Perovskite Solar Cellsmentioning

confidence: 99%

“…Fortunately, the advent of vdW substrates provides a viable solution to this problem. Unlike conventional substrates, vdW substrates such as layered oxides, transition metal disulfides (TMDs), graphene, hexagonal boron nitride, black phosphorus (BP), and antimonene support epitaxial growth of perovskites through weak vdW forces, circumventing the need for lattice matching requirements of conventional substrates. − This offers greater flexibility in the preparation and application of perovskites. Additionally, vdW interfaces possess a unique advantage in enabling the native perovskite to be exfoliated.…”

Section: The Basis Of Epitaxial Growth For Metal Halide Perovskitementioning

confidence: 99%

“…Based on the appropriate valence band and high carrier mobility of antimonene, researchers have attempted to apply it in PSCs. Han et al introduced antimonene nanosheets (ANs) onto the surface of perovskite thin films by electrochemical lithiation intercalation and the ultrasonication method . Due to the good lattice matching between the (012) plane of ANs and the (002) plane of MA 0.15 FA 0.85 PbI 3 perovskite (Figure d), ANs can serve as effective heterogeneous nucleation sites, promoting the oriented growth of perovskite along the (002) plane of ANs, resulting in high-quality perovskite films with preferred orientation along the [001] direction and significantly increased grain size.…”

Section: Application Of Epitaxial Growth In Perovskite Solar Cellsmentioning

confidence: 99%

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Impact and Role of Epitaxial Growth in Metal Halide Perovskite Solar Cells

Han

Xiao

Zhang

et al. 2023

ACS Materials Lett.

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Epitaxial growth technology has garnered widespread attention in the field of perovskite solar cells for its potential to produce high-quality crystals with preferred orientations and superior photoelectric properties. However, achieving rational epitaxial growth in the fabrication process of perovskite solar cells still remains a challenging task. A thorough understanding of the fundamental principles of epitaxial growth and an appreciation of the unique advantages of the main epitaxial strategies are crucial for the effective application of this technique in the realm of metal halide perovskites. Unfortunately, due to the lack of a comprehensive summary of the epitaxial metal halide perovskite solar cells, current researchers have insufficiently explored the application of epitaxial growth methods, leading to a limited understanding of the underlying principles and immature process development. Therefore, this review systematically summarizes the principle of epitaxial growth technologies, the main epitaxial strategies, and the latest research progresses in its application to perovskite solar cells, aiming to assist readers in better understanding and applying this technique in the context of perovskite solar cells.

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2D-Antimonene-assisted hetero-epitaxial growth of perovskite films for efficient solar cells

Cited by 12 publications

References 51 publications

Surface Regulation with Polymerized Small Molecular Acceptor Towards Efficient Inverted Perovskite Solar Cells

Surface Regulation with Polymerized Small Molecular Acceptor Towards Efficient Inverted Perovskite Solar Cells

Multilateral Passivation Strategy in Post-Synthetic Flexible Metal–Organic Frameworks for Enhancing Perovskite Solar Cells

Impact and Role of Epitaxial Growth in Metal Halide Perovskite Solar Cells

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