Graphene and its derivatives for solar cells application

Mahmoudi, Tahmineh; Wang, Yousheng; Hahn, Yoon‐Bong

doi:10.1016/j.nanoen.2018.02.047

Cited by 332 publications

(151 citation statements)

References 158 publications

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“…Synthesis of graphene and its composites are available elsewhere [27][28][29] and summarized in the Experimental Section. Synthesis of graphene and its composites are available elsewhere [27][28][29] and summarized in the Experimental Section.…”

Section: Resultsmentioning

confidence: 99%

SrTiO₃/Al₂O₃‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

Mahmoudi

Wang

Hahn

2019

Advanced Energy Materials

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For practical use of perovskite solar cells (PSCs) the instability issues of devices, attributed to degradation of perovskite molecules by moisture, ions migration, and thermal‐ and light‐instability, have to be solved. Herein, highly efficient and stable PSCs based on perovskite/Ag‐reduced graphene oxide (Ag‐rGO) and mesoporous Al2O3/graphene (mp‐AG) composites are reported. The mp‐AG composite is conductive with one‐order of magnitude higher mobility than mp‐TiO2 and used for electron transport layer (ETL). Compared to the mp‐TiO2 ETL based cells, the champion device based on perovskite/Ag‐rGO and SrTiO3/mp‐AG composites shows overall a best performance (i.e., VOC = 1.057 V, JSC = 25.75 mA cm−2, fill factor (FF) = 75.63%, and power conversion efficiency (PCE) = 20.58%). More importantly, the champion device without encapsulation exhibits not only remarkable thermal‐ and photostability but also long‐term stability, retaining 97–99% of the initial values of photovoltaic parameters and sustaining ≈93% of initial PCE over 300 d under ambient conditions.

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Section: Resultsmentioning

confidence: 99%

SrTiO₃/Al₂O₃‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

Mahmoudi

Wang

Hahn

2019

Advanced Energy Materials

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“…PEDOT: PSS high thermoelectric conduction property is suitable for common HTL materials in both PSC and OSC but poor acidic stability is a tussle. As carrier transport materials, graphene derivative has lot of potential in efficiency progression and environmental stability . Graphene or C 60 SAM's advanced thermoelectric conductive microstructure is shown to improve conduction.…”

Section: Quantum Effect: Esc Contextmentioning

confidence: 99%

“…As carrier transport materials, graphene derivative has lot of potential in efficiency progression and environmental stability. 174,175 Graphene or C 60 SAM's advanced thermoelectric conductive microstructure is shown to improve conduction. Hosting advance conductive conjugate graphene-PEDOT: PSS material as HTL is showed most air stable.…”

Section: Stability-efficiency Trade-offmentioning

confidence: 99%

Emerging solar cells energy trade-off: Interface engineering materials impact on stability and efficiency progress

Ghosh

Biswas

2018

Int J Energy Res

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Summary Emerging solar cell (ESC) carrier's dynamic transfer difficulties and instability at dissimilar material's interface seems to be potential distress. Electrical permittivity influences on photo carrier dynamics of nonpolarized organic and polarized organic‐inorganic perovskite solar cell. ESC electrical efficiency and stability are consider to be managed broadly by carrier accumulation, extraction, and conduction techniques. Active materials optoelectric interaction and carrier accumulation are petite known. Its energetic dealings with dissimilar interface materials how support to faster carrier extraction and conduction are still in haze. In this drill, focus on active to interface materials key properties are imperative to find a way to promote electrical energy conversion and its steadiness. Selected advanced interface engineering materials (IEMs) architectures, conduction, and multifarious relations to active materials for efficient energy transfer ability and stability are reported precisely by the model. The interface structure consistency supports to systematize energy transfer, otherwise, disorder or energy loss is anticipated. Therefore, active material linkage to IEM photophysical, quantum, and choice of materials technologies are focused comprehensively to explore the pathway of ESC stability and efficiency progression.

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“…Encouraged by the results extracted from graphene, researchers turned their attention to graphene-analogous 2D-mats such as molebdinum-disulphide (MoS 2 ), boron nitride (BN), and tungsten disulphide (WS 2 ). Owing to its specific crystalline and chemical structure, these 2D-mats exhibit distinct properties compared to not only host graphene but also relative to each other Zhang et al 2016;Mahmoudi et al 2018;Ikram et al 2020a). Various properties of 2D-mats render them attractive for biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium

et al. 2020

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In this work, boron nitride nanosheets (BNNS) were produced through chemical exfoliation of bulk boron nitride (BN). Furthermore, hydrothermal technique was used to incorporate various concentrations (2.5, 5, 7.5, and 10 wt%) of zirconium (Zr) as a dopant. The prepared undoped and doped BN samples were evaluated for its antimicrobial activity against E. coli and S. aureus. Structural analysis was undertaken using x-ray diffraction which identified the presence of hexagonal BN. FTIR and Raman spectroscopy were utilized to outline IR fingerprint and electronic properties of the synthesized material. Morphological information was obtained through micrographs extracted using field emission scanning electron spectroscope (FESEM) and high resolution transmission electron microscope (HRTEM), while d-spacing was also calculated through HRTEM analysis. Optical properties and emission spectra were examined by applying UV-vis and photoluminescence spectroscope (PL); whereas, band gap analysis was carried out via Tauc plot. Zr-doped BN nanosheets at increasing concentrations (0.5, 1.0 mg/50 μl) revealed enhanced antibacterial activity against E. coli compared to S. aureus (p < 0.05).

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Graphene and its derivatives for solar cells application

Cited by 332 publications

References 158 publications

SrTiO₃/Al₂O₃‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

SrTiO₃/Al₂O₃‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

Emerging solar cells energy trade-off: Interface engineering materials impact on stability and efficiency progress

Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium

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Graphene and its derivatives for solar cells application

Cited by 332 publications

References 158 publications

SrTiO3/Al2O3‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

SrTiO3/Al2O3‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

Emerging solar cells energy trade-off: Interface engineering materials impact on stability and efficiency progress

Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium

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SrTiO₃/Al₂O₃‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency

SrTiO₃/Al₂O₃‐Graphene Electron Transport Layer for Highly Stable and Efficient Composites‐Based Perovskite Solar Cells with 20.6% Efficiency