Solution-Processed Cu<sub>2</sub>O and CuO as Hole Transport Materials for Efficient Perovskite Solar Cells

Zuo, Chuantian; Ding, Liming

doi:10.1002/smll.201501330

Cited by 476 publications

(310 citation statements)

References 30 publications

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“…In the p-i-n type architecture, a p -type hole transporting layer (HTL) such as CuO, NiO or PEDOT: PSS is deposited on a transparent conductive oxide (TCO) coated glass substrate namely fluorine doped tin oxide (FTO) or indium tin oxide (ITO) coated glasses. This is followed by the deposition of the perovskite active layer which is then coated over by a n -type film of [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM), ZnO, or C60 which acts as an ETL and subsequently a low work-function metal such as aluminum is evaporated to complete the device [24,25,26,27,28,29]. In the n-i-p type architecture, an n -type ETL such as TiO 2 , ZnO, SnO 2 or WO 3 is deposited on a TCO-coated glass substrate which is then followed by perovskite deposition.…”

Section: Architecture and Working Mechanism Of Devicesmentioning

confidence: 99%

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

2017

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The electron diffusion length (Ln) is smaller than the hole diffusion length (Lp) in many halide perovskite semiconductors meaning that the use of ordered one-dimensional (1D) structures such as nanowires (NWs) and nanotubes (NTs) as electron transport layers (ETLs) is a promising method of achieving high performance halide perovskite solar cells (HPSCs). ETLs consisting of oriented and aligned NWs and NTs offer the potential not merely for improved directional charge transport but also for the enhanced absorption of incoming light and thermodynamically efficient management of photogenerated carrier populations. The ordered architecture of NW/NT arrays affords superior infiltration of a deposited material making them ideal for use in HPSCs. Photoconversion efficiencies (PCEs) as high as 18% have been demonstrated for HPSCs using 1D ETLs. Despite the advantages of 1D ETLs, there are still challenges that need to be overcome to achieve even higher PCEs, such as better methods to eliminate or passivate surface traps, improved understanding of the hetero-interface and optimization of the morphology (i.e., length, diameter, and spacing of NWs/NTs). This review introduces the general considerations of ETLs for HPSCs, deposition techniques used, and the current research and challenges in the field of 1D ETLs for perovskite solar cells.

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Section: Architecture and Working Mechanism Of Devicesmentioning

confidence: 99%

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

2017

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“…Perovskite solar cells (PSCs) have attracted considerable research interest because of their excellent photovoltaic performance and simple fabrication process 1, 2. Perovskite materials have many advantages such as excellent charge‐carrier mobility, effective ambipolar charge transfer, and high optical absorption coefficient.…”

Section: Introductionmentioning

confidence: 99%

MgO Nanoparticle Modified Anode for Highly Efficient SnO₂‐Based Planar Perovskite Solar Cells

et al. 2017

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Reducing the energy loss and retarding the carrier recombination at the interface are crucial to improve the performance of the perovskite solar cell (PSCs). However, little is known about the recombination mechanism at the interface of anode and SnO2 electron transfer layer (ETL). In this work, an ultrathin wide bandgap dielectric MgO nanolayer is incorporated between SnO2:F (FTO) electrode and SnO2 ETL of planar PSCs, realizing enhanced electron transporting and hole blocking properties. With the use of this electrode modifier, a power conversion efficiency of 18.23% is demonstrated, an 11% increment compared with that without MgO modifier. These improvements are attributed to the better properties of MgO‐modified FTO/SnO2 as compared to FTO/SnO2, such as smoother surface, less FTO surface defects due to MgO passivation, and suppressed electron–hole recombinations. Also, MgO nanolayer with lower valance band minimum level played a better role in hole blocking. When FTO is replaced with Sn‐doped In2O3 (ITO), a higher power conversion efficiency of 18.82% is demonstrated. As a result, the device with the MgO hole‐blocking layer exhibits a remarkable improvement of all J–V parameters. This work presents a new direction to improve the performance of the PSCs based on SnO2 ETL by transparent conductive electrode surface modification.

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“…1D, 2D and 3D CuO micro/nanostructure have been intensively synthesized [20][21][22][23][24][25][26][27][28][29]30,31]. Most applications of CuO are focused on the catalytic activity for CO oxidation.…”

Section: Introductionmentioning

confidence: 99%

3D hierarchical walnut-like CuO nanostructures: Preparation, characterization and their efficient catalytic activity for CO oxidation

Yao

Zhang

Duan

et al. 2016

Physica B: Condensed Matter

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Solution-Processed Cu₂O and CuO as Hole Transport Materials for Efficient Perovskite Solar Cells

Cited by 476 publications

References 30 publications

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

MgO Nanoparticle Modified Anode for Highly Efficient SnO₂‐Based Planar Perovskite Solar Cells

3D hierarchical walnut-like CuO nanostructures: Preparation, characterization and their efficient catalytic activity for CO oxidation

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Solution-Processed Cu2O and CuO as Hole Transport Materials for Efficient Perovskite Solar Cells

Cited by 476 publications

References 30 publications

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

MgO Nanoparticle Modified Anode for Highly Efficient SnO2‐Based Planar Perovskite Solar Cells

3D hierarchical walnut-like CuO nanostructures: Preparation, characterization and their efficient catalytic activity for CO oxidation

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Solution-Processed Cu₂O and CuO as Hole Transport Materials for Efficient Perovskite Solar Cells

MgO Nanoparticle Modified Anode for Highly Efficient SnO₂‐Based Planar Perovskite Solar Cells