Preparation and Characteristics of MAPbBr3 Perovskite Quantum Dots on NiOx Film and Application for High Transparent Solar Cells

Chen, Lung-Chien; Lee, Kuan-Lin; Huang, Chun-Yuan; Lin, Jing-Wen; Tseng, Zong‐Liang

doi:10.3390/mi9050205

Cited by 18 publications

(13 citation statements)

References 28 publications

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“…Although most early research studies were focused on bulk thin film perovskites, very recently there has been a growing interest in exploring perovskite nanocrystals (NCs) for various applications due to their enhanced stability in the presence of ligands . Several studies have already shown that perovskite NCs possess great potential for solution‐processable photovoltaic devices under ambient atmosphere due to their high environmental and thermodynamic stabilities . Other studies demonstrate the charge transfer dynamics for perovskite NCs in heterojunctions showing great potential for charge extraction in further applications .…”

Section: Responsivity (R) and Detectivity (D*) Of Photodetectors Undementioning

confidence: 99%

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr₃ Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Yao

Bohn

Huang

et al. 2019

Advanced Optical Materials

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These properties have led to an enormous progress in various optoelectronic applications, especially to the impressive advances in the efficiency of photovoltaics that surged from 3.8% to 22% during the past few years. [5][6][7][8][9] Although most early research studies were focused on bulk thin film perovskites, very recently there has been a growing interest in exploring perovskite nanocrystals (NCs) for various applications due to their enhanced stability in the presence of ligands. [10][11][12][13] Several studies have already shown that perovskite NCs possess great potential for solution-processable photovoltaic devices under ambient atmosphere due to their high environmental and thermodynamic stabilities. [14][15][16] Other studies demonstrate the charge transfer dynamics for perovskite NCs in heterojunctions showing great potential for charge extraction in further applications. [17][18][19][20] Most reported perovskite photovoltaic devices are generally fabricated in a layer-by-layer configuration in which the exciton dissociation occurs at the interface of the perovskite NC layer and the respective electron or hole-transport layer. Therefore, the device performance relies on the diffusion of excitons or free carriers in the perovskite NC layer, which is reported as a fatal issue for ligand-capped colloidal NCs. [21][22][23][24] It is worth mentioning that organic semiconductor-based photovoltaic devices also suffer from similar problems. In order to enrich the donor-acceptor interfaces as well as to shrink the exciton diffusion path length, blend structures (donor and acceptor materials are mixed in one layer) have often been employed for achieving highly efficient organic photovoltaic devices. [25][26][27][28] However, it is difficult to fabricate such blend structures based on bulk thin film perovskites which are grown using precursors dissolved in polar solvents such as dimethylformamide and dimethyl sulfoxide. [5][6][7][8][9] In contrast, perovskite NCs fortunately are commonly dispersed in organic solvents in which organic electron-acceptor materials such as the fullerene derivative phenyl-C 61 -butyric acid methyl ester (PCBM) can be dissolved as well. This enables the fabrication of perovskite NC/PCBM blend structures similar to bulk heterojunction configurations in organic photovoltaic devices. Recently, Shen et al. have shown the fabrication of Solution-processable perovskite nanocrystals (NCs) are gaining increasing interest in the field of photovoltaics because of their enhanced stability compared to their thin-film counterparts. However, the charge transfer dynamics in perovskite NC based light-harvesting systems are not well understood. By applying femtosecond differential transmission (DT) spectroscopy the photoinduced charge transfer from inorganic perovskite CsPbBr 3 NCs to the fullerene derivative phenyl-C61-butyric acid methyl ester (PCBM) is investigated for two fundamentally different architectures, namely layer-by-layer heterostructures and blend structures. By varying the thickness ...

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Section: Responsivity (R) and Detectivity (D*) Of Photodetectors Undementioning

confidence: 99%

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr₃ Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Yao

Bohn

Huang

et al. 2019

Advanced Optical Materials

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“…Hybrid organic-inorganic perovskite materials have been widely accepted and applied in solar cells. The power conversion efficiency has evolved from 3.8% in 2009 to a certified value of 22.7% in 2018 [1,2,3,4,5]. Perovskite materials are a versatile material with unique optoelectronic properties, exhibiting strong light absorption, long diffusion length, and high mobility [6].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Efficiency of MAPbI3 Perovskite Solar Cells with FAPbX3 Perovskite Quantum Dots

et al. 2019

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We describe a method to enhance power conversion efficiency (PCE) of MAPbI3 perovskite solar cell by inserting a FAPbX3 perovskite quantum dots (QD-FAPbX3) layer. The MAPbI3 and QD-FAPbX3 layers were prepared using a simple, rapid spin-coating method in a nitrogen-filled glove box. The solar cell structure consists of ITO/PEDOT:PSS/MAPbI3/QD-FAPbX3/C60/Ag, where PEDOT:PSS, MAPbI3, QD-FAPbX3, and C60 were used as the hole transport layer, light-absorbing layer, absorption enhance layer, and electron transport layer, respectively. The MAPbI3/QD-FAPbX3 solar cells exhibit a PCE of 7.59%, an open circuit voltage (Voc) of 0.9 V, a short-circuit current density (Jsc) of 17.4 mA/cm2, and a fill factor (FF) of 48.6%, respectively.

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“…Then, the precursor solution was added into 3 mL of chloroform under vigorous stirring at 90 °C to obtain highly luminescent perovskite QDs with a green color. 40 The perovskite QDs were collected by centrifugation and cleaned several times with hexane to remove the residue. The QDs were suspended in toluene to form a 0.1 wt % solution for the QD layer preparation.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Thereafter, oleic acid (0.4 mL) and oleylamine (0.2 mL) were added to the solution with continuous stirring at 60 °C. Then, the precursor solution was added into 3 mL of chloroform under vigorous stirring at 90 °C to obtain highly luminescent perovskite QDs with a green color . The perovskite QDs were collected by centrifugation and cleaned several times with hexane to remove the residue.…”

Section: Methodsmentioning

confidence: 99%

Recrystallized Perovskite Thin Film via Intense Pulse Light Sintering for Vertical Gradient Band Gap Perovskite Solar Cells

Peng

Chen

et al. 2021

ACS Appl. Energy Mater.

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A wet preparation process was developed to prepare vertical gradient perovskite film (MAPbBr3/MAPbBr3–x I x /MAPbI3) for solar cells. To avoid mutual dissolution, an MAPbBr3 quantum dot (QD) ink was directly inkjet printed on a spin-coated MAPbI3 film to create stacked perovskite layers (MAPbBr3 QD/MAPbI3). Intense pulse light (IPL) was used to sinter the stacked perovskite films. After the IPL sintering process, the grain size in the stacked layers significantly increased from 16 to 30 nm (MAPbBr3 QD) and from 123 to 538 nm (MAPbI3), respectively. Meanwhile, between the stacked layers, a mixed halide perovskite (MAPbBr3– x I x ) film with a gradient was created. The IPL-sintered perovskite films remained stable without phase separation under 15 W/cm2 illimitation for 20 s. The gradient perovskite films were further assembled as an absorber layer in solar cell and exhibited a power conversion efficiency (PCE) of 17.06%. Moreover, the solar cell with vertical gradient showed good moisture stability and exhibited 80% PCE under relative humidity (RH) = 70% for 500 h. In summary, this process can create an interfacial gradient layer between light-absorbing materials and can be further applied to other material systems.

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Preparation and Characteristics of MAPbBr3 Perovskite Quantum Dots on NiOx Film and Application for High Transparent Solar Cells

Cited by 18 publications

References 28 publications

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr₃ Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr₃ Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Enhanced Efficiency of MAPbI3 Perovskite Solar Cells with FAPbX3 Perovskite Quantum Dots

Recrystallized Perovskite Thin Film via Intense Pulse Light Sintering for Vertical Gradient Band Gap Perovskite Solar Cells

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Preparation and Characteristics of MAPbBr3 Perovskite Quantum Dots on NiOx Film and Application for High Transparent Solar Cells

Cited by 18 publications

References 28 publications

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr3 Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr3 Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Enhanced Efficiency of MAPbI3 Perovskite Solar Cells with FAPbX3 Perovskite Quantum Dots

Recrystallized Perovskite Thin Film via Intense Pulse Light Sintering for Vertical Gradient Band Gap Perovskite Solar Cells

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Product

Resources

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Exciton Diffusion Lengths and Dissociation Rates in CsPbBr₃ Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures

Exciton Diffusion Lengths and Dissociation Rates in CsPbBr₃ Nanocrystal–Fullerene Composites: Layer‐by‐Layer versus Blend Structures