The roles of graphene and its derivatives in perovskite solar cells: A review

Gong, Kaiwen; Hu, Jichao; Cui, Nan; Li, Lianbi; Long, Gen; Lin, Shang

doi:10.1016/j.matdes.2021.110170

Cited by 35 publications

(22 citation statements)

References 111 publications

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“…[16][17][18] Monolayer graphene (MLG) is a strictly 2D crystal of carbon atoms that exhibits excellent conductivity, extraordinary optical transmittance, high flexibility, and stability. [19,20] In addition, high-quality crack-free MLG has a super-clean surface and homogeneousness with a six-member ring structure composed of carbon atoms. [21] A prior study indicated that MLG induces the crystallization of P3HT films, where the particular crystalline mosaic with π-π stacking oriented homogeneously at various angles inside the film favors the creation of a continuous pathway of interconnected crystallites for charge transport.…”

Section: Introductionmentioning

confidence: 99%

Crack‐Free Monolayer Graphene Interlayer for Improving Perovskite Crystallinity and Energy Level Alignment in Efficient Inverted Perovskite Solar Cells

Sun

et al. 2022

Solar RRL

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Inverted planar perovskite solar cells (PSCs) have intrigued great promise in negative hysteresis, simple fabrication process, and flexible substrate implementation, in which the shared hole transport materiel is NiOx. However, the low‐temperature solution processing of the NiOx film is usually accompanied by defect formation, which deteriorates the perovskite quality and device performance. Meanwhile, the energy‐level offset between the NiOx and perovskite films is relatively large, limiting the interfacial charge transport. To suppress those setbacks, a defect‐free monolayer graphene sheet is transferred onto the NiOx film surface as a template for van der Waals epitaxial growth of perovskite films for the first time, leading to enhancing crystallinity with a large grain size of perovskite layer, 0.20 eV energy level offset drop, and accelerating charge transfer for the devices. Finally, the power conversion efficiency of 19.21% without hysteresis is achieved, exceeding 18.35% of the control device.

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Section: Introductionmentioning

confidence: 99%

Crack‐Free Monolayer Graphene Interlayer for Improving Perovskite Crystallinity and Energy Level Alignment in Efficient Inverted Perovskite Solar Cells

Sun

et al. 2022

Solar RRL

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“…Graphene is an attractive candidate for a new generation of transparent conductive electrodes (TCEs) with huge impact in different research field domains, such as displays, touch screens, or solar cells, and it is recently setting foot in the commercial market [ 1 , 2 , 3 , 4 ]. Graphene, defined as a single layer (monolayer) of carbon atoms, shows unique characteristics that make it a very versatile material.…”

Section: Introductionmentioning

confidence: 99%

Impact of Graphene Monolayer on the Performance of Non-Conventional Silicon Heterojunction Solar Cells with MoOx Hole-Selective Contact

et al. 2023

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In this work, a new design of transparent conductive electrode based on a graphene monolayer is evaluated. This hybrid electrode is incorporated into non-standard, high-efficiency crystalline silicon solar cells, where the conventional emitter is replaced by a MoOx selective contact. The device characterization reveals a clear electrical improvement when the graphene monolayer is placed as part of the electrode. The current–voltage characteristic of the solar cell with graphene shows an improved FF and Voc provided by the front electrode modification. Improved conductance values up to 5.5 mS are achieved for the graphene-based electrode, in comparison with 3 mS for bare ITO. In addition, the device efficiency improves by around 1.6% when graphene is incorporated on top. These results so far open the possibility of noticeably improving the contact technology of non-conventional photovoltaic technologies and further enhancing their performance.

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“…23,24 Moreover, graphene-based materials are promising as electrodes and charge transport layers in PSCs, thanks to their low cost, high stability, non-toxicity, and remarkable optoelectronic properties. 25,26…”

Section: Introductionmentioning

confidence: 99%

3D graphene: synthesis, properties, and solar cell applications

2023

Chem. Commun.

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The roles of graphene and its derivatives in perovskite solar cells: A review

Cited by 35 publications

References 111 publications

Crack‐Free Monolayer Graphene Interlayer for Improving Perovskite Crystallinity and Energy Level Alignment in Efficient Inverted Perovskite Solar Cells

Crack‐Free Monolayer Graphene Interlayer for Improving Perovskite Crystallinity and Energy Level Alignment in Efficient Inverted Perovskite Solar Cells

Impact of Graphene Monolayer on the Performance of Non-Conventional Silicon Heterojunction Solar Cells with MoOx Hole-Selective Contact

3D graphene: synthesis, properties, and solar cell applications

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