Low work function intermetallic thin film as a back surface field material for hybrid solar cells

Ge, Kunpeng; Chen, Jianhui; Chen, Bingbing; Shen, Yanjiao; Guo, Jianxin; Li, Feng; Liu, Haixu; Xu, Ying; Mai, Yaohua

doi:10.1016/j.solener.2018.01.058

Cited by 8 publications

(4 citation statements)

References 31 publications

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“…Accordingly, use of an ultralow work function n-type contact, such as the semiconducting polymer TPHP(LiClO 4 ) ( Φ = 2.2 eV), will be necessary. 69 For the hole transport layer, a small work function metal alloy such as MgNd ( Φ = 3.5 eV) may be appropriate, 70 although other contacts without expensive Nd would be preferred.…”

Section: Resultsmentioning

confidence: 99%

Relativistic electronic structure and photovoltaic performance of K₂CsSb

Wu,

Ganose

2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Relativistic electronic structure and photovoltaic performance of K₂CsSb

Wu,

Ganose

2023

J. Mater. Chem. A

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“…Accordingly, ultra-low workfunction electron contact materials such as the semiconducting polymer TPHP(LiClO 4 ) (Φ = 2.2 eV) should be employed [66]. For hole extraction, a low workfunction metal alloy such as MgNd (Φ = 3.5 eV) may be appropriate [67].…”

Section: Band Alignmentmentioning

confidence: 99%

Tilt-induced charge localisation in phosphide antiperovskite photovoltaics

Wu,

Ganose

2023

J. Phys. Mater.

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Antiperovskites are a rich family of compounds with applications in battery cathodes, superconductors, solid-state lighting, and catalysis. Recently, a novel series of antimonide phosphide antiperovskites (A 3SbP, where A = Ca, Sr Ba) were proposed as candidate photovoltaic absorbers due to their ideal band gaps, small effective masses and strong optical absorption. In this work, we explore this series of compounds in more detail using relativistic hybrid density functional theory. We reveal that the proposed cubic structures are dynamically unstable and instead identify a tilted orthorhombic Pnma phase as the ground state. Tilting is shown to induce charge localisation that widens the band gap and increases the effective masses. Despite this, we demonstrate that the predicted maximum photovoltaic efficiencies remain high (24%–31% for 200 nm thin films) by bringing the band gaps into the ideal range for a solar absorber. Finally, we assess the band alignment of the series and suggest hole and electron contact materials for efficient photovoltaic devices.

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“…Lastly, the use of low work function metal is another option for the rear electrode. Sputter-deposited MgNd film capped with Ag was prepared and characterized using UPS in [86]. The work function of intermetallic MgNd was measured to be ~3.5 eV, which is quite low compared with typical rear electrodes of Ag or Al.…”

Section: Interface Engineering For Rear Interfacementioning

confidence: 99%

Recent progress in Si-PEDOT:PSS inorganic–organic hybrid solar cells

Khang¹

2019

J. Phys. D: Appl. Phys.

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In this topical review, the development of Si-PEDOT:PSS inorganic–organic hybrid solar cells is briefly summarized. After an introduction to the typical device structure and relevant operating mechanism, special focus is placed upon ways to enhance solar cell efficiency. The various approaches for improving cell performance have been categorized into three sub-topics: (1) micro-/nano-structuring of the Si surface for effective light manipulation and trapping, (2) interface engineering for efficient charge carrier separation and extraction, with special focus on ‘dopant-free selective contact’ approaches, and (3) electrical optimization of PEDOT:PSS via ‘secondary doping’, including their molecular mechanism and analytical characterization methods. Finally, remaining hurdles to be overcome for hybrid solar cells are discussed, including novel applications of unique inorganic–organic heterojunction structures such as photodetectors and photoanodes in photoelectrochemical cells. Moreover, non-planar, deformable forms of Si-PEDOT:PSS hybrid cells are introduced, which may be very useful devices for various portable, off-grid applications.

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Low work function intermetallic thin film as a back surface field material for hybrid solar cells

Cited by 8 publications

References 31 publications

Relativistic electronic structure and photovoltaic performance of K₂CsSb

Relativistic electronic structure and photovoltaic performance of K₂CsSb

Tilt-induced charge localisation in phosphide antiperovskite photovoltaics

Recent progress in Si-PEDOT:PSS inorganic–organic hybrid solar cells

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Low work function intermetallic thin film as a back surface field material for hybrid solar cells

Cited by 8 publications

References 31 publications

Relativistic electronic structure and photovoltaic performance of K2CsSb

Relativistic electronic structure and photovoltaic performance of K2CsSb

Tilt-induced charge localisation in phosphide antiperovskite photovoltaics

Recent progress in Si-PEDOT:PSS inorganic–organic hybrid solar cells

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Product

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Relativistic electronic structure and photovoltaic performance of K₂CsSb

Relativistic electronic structure and photovoltaic performance of K₂CsSb