PEDOT:PSS-mediated semiconductor wafer bonding for built-in middle subcells in multijunction solar cells

Okamoto, Kazuya; Kishibe, Kodai; Sano, Naoki; Tanabe, Katsuaki

doi:10.35848/1882-0786/acc0d3

Cited by 4 publications

(3 citation statements)

References 29 publications

(33 reference statements)

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“…Theoretically, the maximum efficiency of a multijunction solar cell is 86%. Multi-junction (MJ, Tandem) III-V compound solar cells are have an efficiency of up to 50% and have potential applications in space and terrestrial fields [81,82].…”

Section: Third Generation Solar Cellmentioning

confidence: 99%

Solar Cells for Ecological Sustainable Development: A Review

Sudha Gulati,

Richa Jain

2023

J. Adv. Zool.

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Solar energy is considered an environmentally friendly and never-ending renewable source of energy. Solar cells are an essential component of ecological sustainability. This energy can be harnessed for generating electricity without any pollutants even in remote areas. This renewable source of energy has been used to eliminate fossil sources. A solar cell converts solar energy into electrical energy through the photovoltaic effect. Scientists and engineers are continuously making efforts to enhance the efficiencies, decrease the cost of solar cells, and devise technology so that the maximum amount of sunlight is converted into electricity. These efforts culminate into four generations of solar cells – first, second, third, and fourth generations. Different models have been employed to conceptually analyze solar cells, which is also beneficial to enhance the performance of the solar cell. In this study, advancement in the generations of solar cells, their types, manufacturing processes, various models, and future aspects have been discussed.

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Section: Third Generation Solar Cellmentioning

confidence: 99%

Solar Cells for Ecological Sustainable Development: A Review

Sudha Gulati,

Richa Jain

2023

J. Adv. Zool.

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“…In the field of organic hole-conducting materials, poly (3,4-ethylenedioxythiophene):poly styrenesulfonate (PEDOT:PSS) has similarly gained a lot of interest. Whether it be used for new flexible or rigid perovskite cells [5][6][7] or in tandem and multijunction cells [8][9][10], PEDOT:PSS has multiple uses ranging from a transparent hole transport layer (HTL),…”

Section: Introductionmentioning

confidence: 99%

Effect of Interfacial Oxide Layers on Self-Doped PEDOT/Si Hybrid Solar Cells

Saha,

Oshima,

Ohori

et al. 2023

Energies

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PEDOT:PSS/Si hybrid photovoltaic cells have been attracting attention as a potential way to simplify the manufacturing process and democratize solar energy production. Control of the PEDOT/Si interface is also one of the primary ways to ensure the improved performance and lifetimes of multijunction devices, such as perovskite/Si tandem solar cells. In this work, the effects of the interfacial silicon oxide layer were investigated by creating a novel and controllable neutral beam oxide interlayer with different thicknesses. A novel self-doped PEDOT (S-PEDOT) was used to improve interfacial contact and avoid the secondary doping of PEDOT:PSS. X-ray photoelectron spectroscopy (XPS) showed that the saturation of interfacial silicon atoms in SiOx-Si bonds as well as a very thin, (~1 nm) damage-free oxide interlayer were the keys to maintaining good passivation with a high tunneling current. Lifetime measurements also showed that the interlayers with the most SiO2 content degraded the least. The degradation of the devices was due to the continued growth of the oxide layer through reactions with silicon sub-oxides and the degradation of S-PEDOT.

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“…The PCE has improved rapidly over the last few years. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] PEDOT:PSS, as a metalloid, forms Schottky junctions when in contact with n-type silicon (n-Si). [21][22][23] Its conductivity and interfacial properties with n-Si determine the hole collection characteristics of the device, which affect the efficiency of the photovoltaic performance.…”

Section: Introductionmentioning

confidence: 99%

Structural Design and Simple Posttreatment of the Hole Transport Layer to Improve Performance of Hybrid Solar Cells

Wang

Jiang

Zhao

et al. 2023

Physica Rapid Research Ltrs

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The performance of organic‐inorganic hybrid solar cells (HSCs) can be improved by modifying the hole transport layer (HTL). Poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is the most active HTL material in organic‐inorganic HSCs and has been widely studied. Nevertheless, charge transfer in PEDOT:PSS is limited and inefficient due to the presence of the weak ionic conductor PSS. Moreover, the working function of the PEDOT:PSS film and the passivation of the PSS at the Si/PEDOT:PSS interface play a crucial role in carrier separation. The focus of this work is to explore a universal modification method to simultaneously achieve improved charge transport and interfacial passivation capability when using PEDOT:PSS as HTL. By combining bilayer design and simple solution posttreatment, the direct current conductivity (σdc) and work function of the HTL based on PEDOT:PSS are increased to 765 S cm−1 and 5.00 eV, respectively. The organic‐inorganic HSCs prepared using this approach achieve a photovoltaic conversion efficiency (PCE) of 12.33%, achieving a 16.54% improvement over untreated devices.

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PEDOT:PSS-mediated semiconductor wafer bonding for built-in middle subcells in multijunction solar cells

Cited by 4 publications

References 29 publications

Solar Cells for Ecological Sustainable Development: A Review

Solar Cells for Ecological Sustainable Development: A Review

Effect of Interfacial Oxide Layers on Self-Doped PEDOT/Si Hybrid Solar Cells

Structural Design and Simple Posttreatment of the Hole Transport Layer to Improve Performance of Hybrid Solar Cells

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