Full-scale chemical and field-effect passivation: 21.52% efficiency of stable MAPbI3 solar cells via benzenamine modification

Wang, Fengyou; Yang, Meifang; Zhang, Yuhong; Du, Jinyue; Yang, Shuo; Yang, Lili; Fan, Lin; Sui, Yongming; Sun, Yunfei; Yang, Jing

doi:10.1007/s12274-021-3286-2

Cited by 24 publications

(29 citation statements)

References 54 publications

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“…Figure 9 depicts the evaluation of response time for G:0 and G:60 devices. To calculate the rise time constant (τ r ) and decay time constant (τ d ), (10) and ( 11) are used. [55] I ¼ I 01 À Ae À t τr (10)…”

Section: Device I-t Analysismentioning

confidence: 99%

“…between the traps and the external active agents. [10] Thus, it decreases the number of electrically active defects and results in decrease in photoexcited charge recombination. [11,12] On the other hand, FEP establishes strong interfacial dipoles by covering the photoabsorber surface with a dielectric film.…”

Section: Introductionmentioning

confidence: 99%

“…FEP is very popular and successfully implemented in silicon solar cells. [10,[13][14][15] In CZTS solar cells, various wide-bandgap thin insulating metal oxide films such as Al 2 O 3 and SnO 2 are incorporated at heterointerface to passivate the CZTS surface defects and electrically active interfacial trap states to mitigate the back interface recombination. [12,16,17] The influence of insulating material Al 2 O 3 has been investigated widely in CZTS solar cells at the front interfacial contact as well as at the back contact of CZTS DOI: 10.1002/pssa.202200001…”

Section: Introductionmentioning

confidence: 99%

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Interface Engineering of CZTS/TiO₂Heterojunction Using Wide‐Bandgap Ga₂O₃Passivation Interlayer for Efficient Charge Extraction

Physics

Ghosh

Kaur

et al. 2022

Physica Status Solidi (a)

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Section: Device I-t Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interface Engineering of CZTS/TiO₂Heterojunction Using Wide‐Bandgap Ga₂O₃Passivation Interlayer for Efficient Charge Extraction

Physics

Ghosh

Kaur

et al. 2022

Physica Status Solidi (a)

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“…Although the stitching effect improves the grain size on the nanoscale, this would still be considered a toxic antisolvent due to the high amount of chlorobenzene. However, modifying CB antisolvent by iodine and/or a small molecule of 4,4-cyclohexylidenebis[ N , N bis(4-methylphenyl)benzenamine] strategy facilitates the growth of high-quality perovskite films, leading to enhancement of the performance and stability of MAPbI 3 solar cell devices. , In addition to the passivation of a perovskite surface with antisolvent modification, the grain boundaries of the perovskite surface can be chemically passivated. This can be accomplished with a thin layer of molybdenum oxide (MoO x ) as a hole transport layer (HTL), which leads to the reduction of the recombination and enhances the efficiency and stability of the perovskite solar cell …”

Section: Introductionmentioning

confidence: 99%

Surface Passivation of Triple-Cation Perovskite via Organic Halide-Saturated Antisolvent for Inverted Planar Solar Cells

Al‐Dainy

Watanabe

Biris

et al. 2021

ACS Appl. Energy Mater.

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Cesium formadinium methylammonium triple-cation (CsFAMA) lead mixed-halide perovskites have been reported to promote unique photovoltaic properties with high efficiency and minimal hysteresis effects. Perovskite film quality is a vital parameter for improving the performance of perovskite solar cells (PSCs). Here, we report the growth of CsFAMA perovskites with microscale grains passivation grain boundaries by mixing HC(NH2)2I (FAI) and CH3NH3Br (MABr) in isopropanol (IPA) as a post-treatment step to cause controlled Ostwald ripening, leading to secondary grain growth. Compared to the conventional preparation of perovskite films with a free organic halide antisolvent, this mixed-cation mixed-halide post-treatment created higher quality perovskite films in terms of morphology, electronic properties, energy level alignment, and carrier recombination, with the band gap adjusted at the optimal concentration. Treatment with the single cation and single halide presented by FAI and/or MABr in IPA treatment was also investigated, and the results showed that multiple band gap perovskite structures were obtained, which could be beneficial for band gap engineering. This method of perovskite preparation was tested in an inverted planar configuration with a hole transport layer (HTL) based on sulfonated poly(thiophene-3-[2-(2-methoxy-ethoxy)ethoxy]-2,5-diyl) (SP3MEET). The efficiency of the PSCs was dramatically boosted from 13.80% with the organic halide-free antisolvent to 17.62% when the mixed-cation mixed-halide approach was used. In addition, the PSCs treated with the mixed-cation mixed-halide solution exhibited excellent reproducibility, with a high fill factor and eliminated hysteresis. The CsFAMA photovoltaic device based on the single organic cation and single halide treatment approach showed power conversion efficiency of 15.82 and 15.90% for the FAI and MABr-treated films, respectively. Characterization of the S-P3MEET as HTLs found that good optoelectronic and morphological properties lead to improve the performance of the inverted PSC. However, with further research to align the energy levels at the S-P3MEET/perovskite interface, greater improvements in the PSCs are expected.

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“…Perovskite solar cells (PSCs) have attracted wide attention in recent years because of their high theoretical conversion efficiency, low raw material cost, simple preparation process, and low energy consumption. − So far, the highest photoelectric conversion efficiency (PCE) of (organic–inorganic) PSCs is 25.6% . However, due to the easy decomposition and aging of its organic components, the stability of the PSCs in high-humidity, high-oxygen, and high-temperature environments still needs to be improved. − In addition, the high cost and instability of organic electron–hole-transport materials have also become the stumbling blocks to the commercialization of PSCs . To improve the stability and reduce the cost of PSCs, the preparation of an electron–hole-transport layer of the PSCs using inorganic materials has become a new research hotspot. − …”

Section: Introductionmentioning

confidence: 99%

Improvement of Thiourea (Lewis Base)-Modified SnO₂ Electron-Transport Layer for Carbon-Based CsPbIBr₂ Perovskite Solar Cells

Zhang

Han

et al. 2021

ACS Appl. Energy Mater.

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In recent years, SnO2 has been widely studied as the electron-transport layer (ETL) of carbon-based CsPbIBr2 perovskite solar cells (PSCs). However, the large lattice mismatch between the SnO2 ETL and the CsPbIBr2 layer and the oxygen vacancy cause nonradiative recombination. Therefore, how to remove the defects between the SnO2 film and the CsPbIBr2 layer is the key to improving the performance. In this paper, thiourea (CH4N2S) is introduced into the SnO2 film as a carrier of S2– (Lewis base), which can capture Pb2+ at the interface between the SnO2 film and the CsPbIBr2 film, so as to reduce the nonradiative recombination between the CsPbIBr2 layer and the ETL and reduce the internal resistance of PSCs. The quality of the perovskite layer is also improved by increasing the size of the crystal, reducing the number of holes, and promoting the transmission ability of the carrier. The results show that the best power conversion efficiency (PCE) obtained by modifying the SnO2 ETL with thiourea (CH4N2S) is 7.18% (41.06% higher than that of the unmodified original PSC). In addition, the PSCs based on the ETL modified by thiourea (CH4N2S) have better stability in the natural environment in contrast to the original PSCs. This paper demonstrated an effective strategy to improve the stability and efficiency of all-inorganic CsPbIBr2 PSCs.

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Full-scale chemical and field-effect passivation: 21.52% efficiency of stable MAPbI3 solar cells via benzenamine modification

Cited by 24 publications

References 54 publications

Interface Engineering of CZTS/TiO₂Heterojunction Using Wide‐Bandgap Ga₂O₃Passivation Interlayer for Efficient Charge Extraction

Interface Engineering of CZTS/TiO₂Heterojunction Using Wide‐Bandgap Ga₂O₃Passivation Interlayer for Efficient Charge Extraction

Surface Passivation of Triple-Cation Perovskite via Organic Halide-Saturated Antisolvent for Inverted Planar Solar Cells

Improvement of Thiourea (Lewis Base)-Modified SnO₂ Electron-Transport Layer for Carbon-Based CsPbIBr₂ Perovskite Solar Cells

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Full-scale chemical and field-effect passivation: 21.52% efficiency of stable MAPbI3 solar cells via benzenamine modification

Cited by 24 publications

References 54 publications

Interface Engineering of CZTS/TiO2Heterojunction Using Wide‐Bandgap Ga2O3Passivation Interlayer for Efficient Charge Extraction

Interface Engineering of CZTS/TiO2Heterojunction Using Wide‐Bandgap Ga2O3Passivation Interlayer for Efficient Charge Extraction

Surface Passivation of Triple-Cation Perovskite via Organic Halide-Saturated Antisolvent for Inverted Planar Solar Cells

Improvement of Thiourea (Lewis Base)-Modified SnO2 Electron-Transport Layer for Carbon-Based CsPbIBr2 Perovskite Solar Cells

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Product

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Interface Engineering of CZTS/TiO₂Heterojunction Using Wide‐Bandgap Ga₂O₃Passivation Interlayer for Efficient Charge Extraction

Interface Engineering of CZTS/TiO₂Heterojunction Using Wide‐Bandgap Ga₂O₃Passivation Interlayer for Efficient Charge Extraction

Improvement of Thiourea (Lewis Base)-Modified SnO₂ Electron-Transport Layer for Carbon-Based CsPbIBr₂ Perovskite Solar Cells