Effects of Adding PbI2 on the Performance of Hole-Transport Material-Free Mesoscopic Perovskite Solar Cells with Carbon Electrode

Kim, Byol; Ko, Song Guk; Sonu, Kyong Su; Ri, Jin Hyok; Kim, Un Chol; Ryu, Gwon Il

doi:10.1007/s11664-018-6531-z

Cited by 18 publications

(10 citation statements)

References 33 publications

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“…Since the perovskite layer functions as a photosensitizer and a hole conductor in this solar cell structure, we focused on the measurement of the charge transfer resistance at the perovskite/carbon interface and the charge recombination resistance at the TiO 2 /perovskite interface. 35 Figure 8a shows the Nyquist diagram of the PSCs with carbon electrodes fabricated using the DMAPbI 3 solution at different concentrations and the MA* gas. The series resistance (R s ), charge transfer resistance (R ct ), and charge recombination resistance (R rec ) of the device obtained from the equivalent circuit shown in Figure 8a are shown in Table S3.…”

Section: Resultsmentioning

confidence: 99%

“…The HTM-free mesoporous PSCs with carbon electrodes were fabricated according to our previous work. 35 First, fluorine-doped tin oxide (FTO) glass was etched using a CO 2 laser to separate two divided electrodes and subsequently cleaned with ultrasonic waves in detergent, ethanol, and deionized water for 15 min. Then, hydrolysis of the TiCl 4 solution was performed to form a compact TiO 2 layer on the FTO glass substrate, followed by sintering at 500 °C for 30 min.…”

Section: Methodsmentioning

confidence: 99%

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Performance Improvement of Hole-Transport Material-Free Mesoporous Perovskite Solar Cells with Carbon Electrodes Using a Solid–Gas Reaction

Kim¹,

Ryu²,

Ko³

et al. 2021

ACS Appl. Energy Mater.

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Recently, hole-transport material (HTM)-free mesoporous perovskite solar cells (PSCs) with carbon electrodes have attracted great attention due to their high stability and low fabrication cost. However, the power conversion efficiency of HTM-free PSCs with carbon electrodes is not high enough due to the lack of a proper perovskite coating method. In this work, very uniform and dense perovskite films were prepared by the acid−base reaction between the dimethylammonium lead iodide (DMAPbI 3 , so-called HPbI 3 ) solid and the methylamine (CH 3 NH 2 ) gas. The results showed that the contact between the perovskite layer and the porous carbon layer was improved by increasing the concentration of the DMAPbI 3 solution, possibly due to the enhancement of pore filling in the perovskite layer within the mesoporous structure and the increase of the crystal size of the perovskite layer. It was also found that the solid−gas reaction time between DMAPbI 3 and CH 3 NH 2 had a serious influence on the crystallization of the perovskite film. The fabricated HTM-free mesoporous PSCs with carbon electrodes demonstrated a high efficiency of 15.04%, together with a decrease in device hysteresis and improvement in device stability.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Performance Improvement of Hole-Transport Material-Free Mesoporous Perovskite Solar Cells with Carbon Electrodes Using a Solid–Gas Reaction

Kim¹,

Ryu²,

Ko³

et al. 2021

ACS Appl. Energy Mater.

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“…ZrO 2 and carbon pastes except of TiO 2 paste were prepared using our previous method [32]. TiO 2 paste was prepared as following: 5 mL of titanium-butoxide was placed in 100 mL of distilled water and stirred at 1000 rpm for 30 min, followed by adding dropwise of hydrogen peroxide(35%) at a molar ratio of 20/1 (hydrogen peroxide/titanium-butoxide).…”

Section: Device Fabricationmentioning

confidence: 99%

Effect of polystyrene treatment on the efficiency and stability of fully printable mesoscopic perovskite solar cells with carbon electrode

Sonu¹,

Kim²,

Ko³

et al. 2021

J Mater Sci: Mater Electron

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Hole conductor-free, fully printable mesoscopic perovskite solar cells with carbon electrode (PM-PSCs) have a good commercialization prospect because of low-cost production and high power conversion e ciency (PCE). Currently, the problem of improving the stability of perovskite solar cells (PSCs) is very important for commercialization. Interfacial engineering using polymers is an effective method to improve the e ciency and stability of PSCs. We prepared PM-PSCs by treatment with the toluene solution containing PS on the carbon electrode of the PM-PSCs, which would improve the charge transfer and greatly suppressed charge recombination in polystyrene (PS)-treated PM-PSCs, and also could greatly prevent degradation of perovskite into PbI 2 . The PS-treated PM-PSCs showed higher stability to light and moisture than the control, and the PCE was improved from 11.31% (control) to 14.03%.

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“…After drying, the cleaned FTO substrates were immersed in 0.2 M TiCl 4 aqueous solution, kept at 70°C for 1 h, washed with deionized water, and were sintered at 500℃ for 30 min to form compact TiO 2 layers. ZrO 2 and carbon pastes except of TiO 2 paste were prepared using our previous method [32]. TiO 2 paste was prepared as following: 5 mL of titanium-butoxide was placed in 100 mL of distilled water and stirred at 1000 rpm for 30 min, followed by adding dropwise of hydrogen peroxide(35%) at a molar ratio of 20/1 (hydrogen peroxide/titanium-butoxide).…”

Section: Device Fabricationmentioning

confidence: 99%

Effect of Polystyrene Treatment on the Efficiency and Stability of Fully Printable Mesoscopic Perovskite Solar Cells With Carbon Electrode

Sonu

Kim

et al. 2021

Preprint

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Hole conductor-free, fully printable mesoscopic perovskite solar cells with carbon electrode (PM-PSCs) have a good commercialization prospect because of low-cost production and high power conversion efficiency (PCE). Currently, the problem of improving the stability of perovskite solar cells (PSCs) is very important for commercialization. Interfacial engineering using polymers is an effective method to improve the efficiency and stability of PSCs. We prepared PM-PSCs by treatment with the toluene solution containing PS on the carbon electrode of the PM-PSCs, which would improve the charge transfer and greatly suppressed charge recombination in polystyrene (PS)-treated PM-PSCs, and also could greatly prevent degradation of perovskite into PbI2. The PS-treated PM-PSCs showed higher stability to light and moisture than the control, and the PCE was improved from 11.31% (control) to 14.03%.

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Effects of Adding PbI2 on the Performance of Hole-Transport Material-Free Mesoscopic Perovskite Solar Cells with Carbon Electrode

Cited by 18 publications

References 33 publications

Performance Improvement of Hole-Transport Material-Free Mesoporous Perovskite Solar Cells with Carbon Electrodes Using a Solid–Gas Reaction

Performance Improvement of Hole-Transport Material-Free Mesoporous Perovskite Solar Cells with Carbon Electrodes Using a Solid–Gas Reaction

Effect of polystyrene treatment on the efficiency and stability of fully printable mesoscopic perovskite solar cells with carbon electrode

Effect of Polystyrene Treatment on the Efficiency and Stability of Fully Printable Mesoscopic Perovskite Solar Cells With Carbon Electrode

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