A room-temperature CuAlO<sub>2</sub>hole interfacial layer for efficient and stable planar perovskite solar cells

Igbari, Femi; Li, Meng; Hu, Yun; Wang, Zhao-Kui; Liao, Liang‐Sheng

doi:10.1039/c5ta07957h

Cited by 125 publications

(86 citation statements)

References 72 publications

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“…Silver nanoparticles or polyethylene oxide (PEO) was used to improve the conductivity of PEDOT:PSS and led to the enhanced short-circuit current density ( J sc ) for inverted Pero-SCs. [ 36,37 ] Adding a layer of p-type material with high work function on the top of PEDOT:PSS is beneficial for photovoltage output. [33][34][35] For example, mixing GeO 2 nanoparticles into PEDOT:PSS led to a rough surface of the HSC.…”

Section: Modifi Ed Pedot:pssmentioning

confidence: 99%

Inverted Perovskite Solar Cells: Progresses and Perspectives

Liu

Chen

et al. 2016

Advanced Energy Materials

409

363

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During the past 6 years, perovskite solar cells have experienced a rapid development and shown great potential as the next‐generation photovoltaics. For the perovskite solar cells with regular structure (n‐i‐p structure), device efficiency has reached over 20% after the intense efforts of researchers from all over the world. Recently, perovskite solar cells with the inverted structure (p‐i‐n structure) have been becoming more and more attractive, owing to their easy‐fabrication, cost‐effectiveness, and suppressed hysteresis characteristics. Some recent progress in their device performance and stability has indicated their promising future. Here, recent developments and future perspectives about inverted perovskite solar cells are reviewed. Interface engineering, film morphology control, device stability, hysteresis phenomena and other research hotspots are discussed to present the roadmap for the development of inverted perovskite solar cells.

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Section: Modifi Ed Pedot:pssmentioning

confidence: 99%

Inverted Perovskite Solar Cells: Progresses and Perspectives

Liu

Chen

et al. 2016

Advanced Energy Materials

409

363

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“…86 To prevent direct contact between the corrosive PEDOT:PSS and the transparent electrode, thin inorganic blocking layers were proposed. 87,88 Such bilayer structures of PEDOT:PSS and the buffer layer were reported to experience less of a performance decrease than pristine PEDOT:PSS. 87,88 The thin interlayer of CuAlO 2 and MoO 3 are credited, respectively, with suppressing corrosion of the transparent indium-tin oxide (ITO) electrode by the acidic PEDOT:PSS.…”

mentioning

confidence: 99%

“…87,88 Such bilayer structures of PEDOT:PSS and the buffer layer were reported to experience less of a performance decrease than pristine PEDOT:PSS. 87,88 The thin interlayer of CuAlO 2 and MoO 3 are credited, respectively, with suppressing corrosion of the transparent indium-tin oxide (ITO) electrode by the acidic PEDOT:PSS. 87,88 In a similar vein, to mitigate this electrode corrosion, GeO 2 was blended into the PEDOT:PSS dispersion prior to its deposition.…”

mentioning

confidence: 99%

“…87,88 The thin interlayer of CuAlO 2 and MoO 3 are credited, respectively, with suppressing corrosion of the transparent indium-tin oxide (ITO) electrode by the acidic PEDOT:PSS. 87,88 In a similar vein, to mitigate this electrode corrosion, GeO 2 was blended into the PEDOT:PSS dispersion prior to its deposition. The reasoning was that GeO 2 due to its alkaline nature in aqueous solutions may be able to buffer the acidity of PEDOT:PSS to mitigate any ITO corrosion.…”

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confidence: 99%

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Research Update: Strategies for improving the stability of perovskite solar cells

et al. 2016

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The power-conversion efficiency of perovskite solar cells has soared up to 22.1% earlier this year. Within merely five years, the perovskite solar cell can now compete on efficiency with inorganic thin-film technologies, making it the most promising of the new, emerging photovoltaic solar cell technologies. The next grand challenge is now the aspect of stability. The hydrophilicity and volatility of the organic methylammonium makes the work-horse material methylammonium lead iodide vulnerable to degradation through humidity and heat. Additionally, ultraviolet radiation and oxygen constitute stressors which can deteriorate the device performance. There are two fundamental strategies to increasing the device stability: developing protective layers around the vulnerable perovskite absorber and developing a more resilient perovskite absorber. The most important reports in literature are summarized and analyzed here, letting us conclude that any long-term stability, on par with that of inorganic thin-film technologies, is only possible with a more resilient perovskite incorporated in a highly protective device design.

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“…However, low FF with 0.47 can be due to incomplete crystallinity of CuCrO2, resulting in lower conductivity. 45 …”

Section: Synthesis and Characterization Of Cucro2 Nanoparticlesmentioning

confidence: 99%

Fabrication of Perovskite Solar Cell Device Using Novel Inorganic P-Type Hole Transport Materials

Cetin¹

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The last decades have seen an exceptionally rapid rise of a novel type of solar cell based on organic-inorganic hybrid perovskite materials. The efficient solid state perovskite solar cells (PSCs) were initially reported in the middle of 2012. Despite of the fact that the perovskite solar cell was a recent technology at that time, perovskite solar cells have experienced unprecedentedly rapid progress by achieving energy conversion efficiency of 16.2% at the end of 2013. The energy conversion efficiency was enhanced by achieving a confirmed value of 17.9% in early 2014. Power conversion efficiency have risen to over 22% from 3% in only a few years.Furthermore, a broad range of various fabrication methods, novel device architectures, and different p and n types semiconductors have been discovered by scientists up to now. This broad diversity explicitly points the fact that power conversion efficiency is still far off from the possible maximum level of power conversion efficiency. In addition to the aim of the maximum achievable power conversion efficiency, the stability issue of PSCs must be well investigated and addressed in order to commercialize highly efficient PSCs. The choice of hole transport materials (HTMs) has been significant impact on the photovoltaic parameters and long term stability of PSCs. This report aims to elucidate the employment of novel inorganic p-type HTMs in PSC devices.3

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A room-temperature CuAlO₂hole interfacial layer for efficient and stable planar perovskite solar cells

Abstract: The fabrication and device parameters of inverted planar heterojunction (PHJ) organic–inorganic lead mixed-halide (CH3NH3PbI3−xClx) perovskite based solar cells (PSCs) using a:CuAlO2 as the hole selective buffer layer between the ITO electrode and PEDOT:PSS were demonstrated.

Cited by 125 publications

References 72 publications

Inverted Perovskite Solar Cells: Progresses and Perspectives

Inverted Perovskite Solar Cells: Progresses and Perspectives

Research Update: Strategies for improving the stability of perovskite solar cells

Fabrication of Perovskite Solar Cell Device Using Novel Inorganic P-Type Hole Transport Materials

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A room-temperature CuAlO2hole interfacial layer for efficient and stable planar perovskite solar cells

Abstract: The fabrication and device parameters of inverted planar heterojunction (PHJ) organic–inorganic lead mixed-halide (CH3NH3PbI3−xClx) perovskite based solar cells (PSCs) using a:CuAlO2 as the hole selective buffer layer between the ITO electrode and PEDOT:PSS were demonstrated.

Cited by 125 publications

References 72 publications

Inverted Perovskite Solar Cells: Progresses and Perspectives

Inverted Perovskite Solar Cells: Progresses and Perspectives

Research Update: Strategies for improving the stability of perovskite solar cells

Fabrication of Perovskite Solar Cell Device Using Novel Inorganic P-Type Hole Transport Materials

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Product

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A room-temperature CuAlO₂hole interfacial layer for efficient and stable planar perovskite solar cells