Статья

Unveiling the Relationship between the Perovskite Precursor Solution and the Resulting Device Performance

Jincheol KimAustralian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable and Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaByung‐wook ParkSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of KoreaJongho BaekARC Centre of Excellence in Advanced Molecular Imaging, University of New South Wales, Sydney, NSW 2052, AustraliaJae Sung YunAustralian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable and Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaHyoung Woo KwonSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of KoreaJan SeidelSchool of Materials Science and Engineering, University of New South Wales, Sydney, 2052, AustraliaHanul MinSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of KoreaSimao CoelhoARC Centre of Excellence in Advanced Molecular Imaging, University of New South Wales, Sydney, NSW 2052, AustraliaSean LimElectron Microscope Unit, University of New South Wales, Sydney, NSW 2052, AustraliaShujuan HuangAustralian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable and Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaKatharina GausARC Centre of Excellence in Advanced Molecular Imaging, University of New South Wales, Sydney, NSW 2052, AustraliaMartin A. GreenAustralian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable and Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaTae Joo ShinUNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of KoreaAnita Ho‐BaillieAustralian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable and Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaMin Gyu KimBeamline Research Division, Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaSang Il SeokSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea

2020en

ABI

Аннотация

For the fabrication of perovskite solar cells (PSCs) using a solution process, it is essential to understand the characteristics of the perovskite precursor solution to achieve high performance and reproducibility. The colloids (iodoplumbates) in the perovskite precursors under various conditions were investigated by UV-visible absorption, dynamic light scattering, photoluminescence, and total internal reflection fluorescence microscopy techniques. Their local structure was examined by in situ X-ray absorption fine structure studies. Perovskite thin films on a substrate with precursor solutions were characterized by transmission electron microscopy, X-ray diffraction analysis, space-charge-limited current, and Kelvin probe force microscopy. The colloidal properties of the perovskite precursor solutions were found to be directly correlated with the defect concentration and crystallinity of the perovskite film. This work provides guidelines for controlling perovskite films by varying the precursor solution, making it possible to use colloid-engineered lead halide perovskite layers to fabricate efficient PSCs.

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Идентификаторы

DOI: 10.1021/jacs.0c00411

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar