Preparation and properties of optoelectronic conversion films of perovskite modified by octadecyl-trichloro silane

Zheng, Ronghong; Zhuang, Jia; Liu, Xingchong; Zhao, Shuangshuang; Zhang, Hua; Li, Haoyue; Guo, Zhongli; Wang, Hanyu; Zhu, Mingshan

doi:10.1016/j.orgel.2020.106028

Cited by 3 publications

(2 citation statements)

References 55 publications

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“…From Figure 1e, we can observe that Br 3d peaks in the OTS-treated perovskite film shift toward higher binding energy, which could be ascribed to the formation of hydrogen bonds (Si−OH…Br − ) between hydrolyzed OTS molecules and Br − in perovskite films. [34] Besides, OTS molecules also make Pb 4f peaks shift to higher binding energy (Figure S1, Supporting Information). We speculate that the strong bonding between Pb 2+ in perovskites and OTS molecules or the influence of OTS molecules on the chemical environment of [PbBr 6 ] 4− that may make Pb 4f peaks shift to the higher binding energy.…”

Section: Resultsmentioning

confidence: 99%

“…However, the slightly increased EQE and J SC after OTS treatment (Figure S10, Supporting Information) could be attributed to the improved moisture tolerance of OTS-treated devices when tested in air, since OTS molecules have hydrophobic alkyl chains. [34] We performed photophysical measurements to illustrate the influence of OTS molecules on the performance of FAPbBr 3 PSCs. The steady-state PL and time-resolved PL (TRPL) tests were carried out on FAPbBr 3 films (without or with OTS treatment) directly deposited on bare glasses.…”

Section: Resultsmentioning

confidence: 99%

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Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr₃ Perovskite for Application in Low‐Light Environments

Zheng

Guo

et al. 2023

Adv Funct Materials

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Underwater solar cells (UWSCs) provide an ideal alternative to the energy supply for long‐endurance autonomous underwater vehicles. However, different from conventional solar cells situated on land or above water, UWSCs give preference to use wide bandgap semiconductors (≥1.8 eV) as light absorber to match underwater solar spectra. Among wide bandgap semiconductors, FAPbBr3 perovskite is under prime consideration owing to its matching optical bandgap (≈2.3 eV), outstanding photoelectric properties, easier processability, etc. Unfortunately, for FAPbBr3 solar cells, substantial interface defects greatly limit the charge carrier extraction efficiency, thus limiting the device performance, especially in underwater low‐light environments. This study employs a molecular self‐assembly strategy to effectively eliminate the interfacial defects. As a result, a great improvement in power conversion efficiency (PCE) from 6.44% to 7.49% is obtained, which is among the best efficiency reported for inverted FAPbBr3 solar cells up to date. Besides, a champion PCE of 30% is obtained under 520 nm monochromatic light irradiation (4.8 mW cm−2). These results demonstrate that FAPbBr3 solar cells present a tremendously promising application in UWSCs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr₃ Perovskite for Application in Low‐Light Environments

Zheng

Guo

et al. 2023

Adv Funct Materials

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Study on desorption mechanism and thermal stability of OTS coating as an anti‐relaxation material

Liu,

He,

Liu

et al. 2024

Micro & Nano Letters

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This research explores the desorption mechanism and thermal stability of octadecyltrichlorosilane (OTS, CH3(CH2)17SiCl3) coating on quartz slides and in alkali‐metal vapour cells. The morphological thermal‐changes, energy dissipation diversity, and anti‐relaxation characteristic of OTS coatings before and after exposure to Cs atoms by Fourier transform infrared spectroscopy, water contact angle measurement, atomic force microscopy imaging, collision energy dissipation analysis, and free induction decay of Cs atoms are measured systematically. The results show that the OTS coatings exhibit the best thermal stability under the specific process conditions, and the homogeneous and dense structure makes the adsorption of alkali‐metal atoms more stable, which effectively reduces surface energy dissipation and prolongs the relaxation time of Cs atoms. The study provides certain reference for efficient anti‐relaxation coating fabrication and coated cell application.

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Formation of Wrinkled Nanostructures via Surface–Bulk Curing Disparity in Ethyl Cyanoacrylate: Toward Superhydrophobic Surface Applications

Lee,

Choi,

Jeong

et al. 2024

Nanomaterials

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Superhydrophobic surfaces, known for their exceptional water-repellent properties with contact angles exceeding 150°, are highly regarded for their effectiveness in applications including self-cleaning, antifouling, and ice prevention. However, the structural fragility and weak durability of conventional coating limit their long-term use. In this research, a new approach is proposed for the fabrication of long-lasting superhydrophobic surfaces using ethyl cyanoacrylate (ECA) and a primer. The application of the primer creates a curing rate disparity between the surface and bulk of the ECA layer, resulting in the formation of wrinkled microstructures essential for achieving superhydrophobicity. The fabricated surfaces were further functionalized through plasma treatment and hydrophobic silane (OTS) coating, enhancing their water-repellent properties. This straightforward and scalable method produced surfaces with excellent superhydrophobicity and robust adhesion to substrates. Durability tests, including roller abrasion and microscratch evaluations, indicated that the wrinkled structure and strong substrate adhesion contributed to sustained performance even under mechanical stress. Additionally, mechanical properties were assessed through nanoindentation, demonstrating enhanced resistance to physical damage compared to conventional superhydrophobic coatings. This study highlights the potential of ECA-based superhydrophobic surfaces for applications requiring durability and mechanical stability, such as architectural coatings, automotive exteriors, and medical devices. The approach offers a promising solution to the limitations of existing superhydrophobic technologies and opens new avenues for further research into wear-resistant and environmentally resilient coatings.

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Preparation and properties of optoelectronic conversion films of perovskite modified by octadecyl-trichloro silane

Cited by 3 publications

References 55 publications

Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr₃ Perovskite for Application in Low‐Light Environments

Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr₃ Perovskite for Application in Low‐Light Environments

Study on desorption mechanism and thermal stability of OTS coating as an anti‐relaxation material

Formation of Wrinkled Nanostructures via Surface–Bulk Curing Disparity in Ethyl Cyanoacrylate: Toward Superhydrophobic Surface Applications

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Preparation and properties of optoelectronic conversion films of perovskite modified by octadecyl-trichloro silane

Cited by 3 publications

References 55 publications

Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr3 Perovskite for Application in Low‐Light Environments

Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr3 Perovskite for Application in Low‐Light Environments

Study on desorption mechanism and thermal stability of OTS coating as an anti‐relaxation material

Formation of Wrinkled Nanostructures via Surface–Bulk Curing Disparity in Ethyl Cyanoacrylate: Toward Superhydrophobic Surface Applications

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Product

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Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr₃ Perovskite for Application in Low‐Light Environments

Interface Engineering Enhances the Photovoltaic Performance of Wide Bandgap FAPbBr₃ Perovskite for Application in Low‐Light Environments