Passivation of high aspect ratio silicon nanowires by using catalytic chemical vapor deposition for radial heterojunction solar cell application

Dong, Guangjiong; Zhou, Yurong; Zhang, Hailong; Liu, Fengzhen; Li, Guangyi; Zhu, Meifang

doi:10.1039/c7ra08343b

Cited by 9 publications

(9 citation statements)

References 28 publications

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“…A champion efficiency of 18.2% was achieved with the 1 vol% concentration of IBTEO addition. Besides the reduced reflectivity (Figure S2), a radial heterojunction 31 is possibly formed due to the improved coverage of PEDOT:PSS on SiNWs, which can be reflected from the significantly improvement of the response in blue wavelength region of the EQE spectra as shown in Figure 4B. Both of the improved light trapping effect and the possible radial carrier collection contribute to the increase of the short circuit current density J SC .…”

Section: Resultsmentioning

confidence: 99%

“…A champion efficiency of 18.2% was achieved with the 1 vol% concentration of IBTEO addition. Besides the reduced reflectivity (Figure S2), a radial heterojunction 31 is show fast deterioration in the beginning 3 h. Only the decay of J SC is relatively less severe. After 300 h, the V OC , J SC , FF, and PCE are respectively reduced by 59%, 16%, 80%, and 93% of the initial values.…”

Section: Characterizationmentioning

confidence: 94%

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Organic/silicon nanowires hybrid solar cells using isobutyltriethoxysilane incorporated poly(3,4‐ethylenedioxythiophene):poly (styrenesulfonate) as hole transport layer

Shen

Sun

Zhou

et al. 2022

Progress in Photovoltaics

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Hybrid heterojunction solar cells (HHSCs) using c‐Si nanowires (SiNWs) as the absorber and poly(3,4‐ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) as the hole selective transport layer (HTL) have been drawing more and more attention due to low cost process as well as high power conversion efficiencies (PCE). However, strong hygroscopicity of the PEDOT:PSS film causes serious degradation of the HHSCs. To improve the stability of the HHSCs, a kind of silane impregnating agent, isobutyltriethoxysilane (IBTEO), was selected as the additive to be added in the PEDOT:PSS solution. The hydrophobicity of the PEDOT:PSS film is much improved by formation of the hydrophobic silicone. The contact area between PEDOT:PSS and SiNWs is dramatically enlarged and more stable Si‐O‐Si bonds were formed at the PEDOT:PSS/SiNWs interface. As a result, the performance and stability of the HHSCs have been significantly improved. A PCE of 18.2% and a FF of 80.5% were obtained for a champion full solution processed PEDOT:PSS/SiNWs HHSC with 1 vol% IBTEO addition. The PCE remains 78% of the initial value after exposed 300 h in the air for the sample with IBTEO added in the PEDOT:PSS solution, while only 7% left for the control device without IBTEO addition.

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Section: Resultsmentioning

confidence: 99%

Section: Characterizationmentioning

confidence: 94%

Organic/silicon nanowires hybrid solar cells using isobutyltriethoxysilane incorporated poly(3,4‐ethylenedioxythiophene):poly (styrenesulfonate) as hole transport layer

Shen

Sun

Zhou

et al. 2022

Progress in Photovoltaics

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“…In 2016, Wang et al [95] fabricated single-wire radial heterojunction solar cells by depositing thin intrinsic and n-type a-Si:H layer on Au-catalyzed vapor-liquid-solid grown p-type Si nanowire and achieved the highest PCE (i.e., 6.3 %) previously recorded for a single Si nanowire. In 2017, Dong et al [109] fabricated radial 2. As presented in Fig.…”

Section: Heterojunction and Homojunction Sinws Solar Cellsmentioning

confidence: 99%

From Crystalline to Low-cost Silicon-based Solar Cells: a Review

Okil

Salem

Abdolkader

et al. 2021

Silicon

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Renewable energy has become an auspicious alternative to fossil fuel resources due to its sustainability and renewability. In this respect, Photovoltaics (PV) technology is one of the essential technologies. Today, more than 90 % of the global PV market relies on crystalline silicon (c-Si)-based solar cells. This article reviews the dynamic field of Si-based solar cells from high-cost crystalline to low-cost cells and investigates how to preserve high possible efficiencies while decreasing the cost. First, we discuss the various types of c-Si solar cells with different device architectures and report recent developments. Next, thin-film solar cells with their recent advancements are given. Then, Si nanowires solar cells and their recent results are discussed. Finally, we present the most encouraging tendencies in achieving low-cost solar cells utilizing cheap materials like heavily doped silicon wafers.

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“…In many emerging applications it is necessary to cover 3D-nanostructures with thin, yet highly conformal films. Examples include transparent contacts for nanowire solar cells 34,35 and coating of nanoparticles for catalysis. 36 The low deposition temperature (which can be as low as room temperature in some cases 37 ) and soft deposition nature of thermal ALD (i.e., the absence of energetic species) makes it also compatible with sensitive materials and devices that can be easily damaged by deposition techniques such as sputtering.…”

Section: Introductionmentioning

confidence: 99%

Atomic layer deposition of Nb-doped TiO2: Dopant incorporation and effect of annealing

Berghuis

Melskens

Macco

et al. 2020

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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Passivation of high aspect ratio silicon nanowires by using catalytic chemical vapor deposition for radial heterojunction solar cell application

Abstract: High aspect ratio silicon nanowires (SiNWs) prepared by metal-assisted chemical etching were passivated by using catalytic chemical vapor deposition (Cat-CVD).

Cited by 9 publications

References 28 publications

Organic/silicon nanowires hybrid solar cells using isobutyltriethoxysilane incorporated poly(3,4‐ethylenedioxythiophene):poly (styrenesulfonate) as hole transport layer

Organic/silicon nanowires hybrid solar cells using isobutyltriethoxysilane incorporated poly(3,4‐ethylenedioxythiophene):poly (styrenesulfonate) as hole transport layer

From Crystalline to Low-cost Silicon-based Solar Cells: a Review

Atomic layer deposition of Nb-doped TiO2: Dopant incorporation and effect of annealing

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