Toward Efficiency Limits of Crystalline Silicon Solar Cells: Recent Progress in High‐Efficiency Silicon Heterojunction Solar Cells (Adv. Energy Mater. 23/2022)

Sun, Zhaoqing; Chen, Xiaoqing; He, Yongcai; Li, Jingjie; Wang, Jianqiang; Yan, Hui; Zhang, Yongzhe

doi:10.1002/aenm.202270094

Cited by 18 publications

(19 citation statements)

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“…The reader is thus referred to the reviews on the subject. [ 21,22 ] The EC cells with low overpotential are desperately needed, which can be achieved by using high‐efficiency electrocatalysts.…”

Section: Pv‐ec Systemmentioning

confidence: 99%

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Zhao

Yuan

2023

Advanced Energy Materials

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energy system is among the most promising solutions to solve the above issues. Substituting the current energy carrier with a sustainable fuel is one of the crucial points in the system. Hydrogen as a green and high energy density carrier, primarily derived from water, can satisfy the requirement of sustainable development and facilitate environmental protection and energy conservation. Nowadays, hydrogen is mainly produced from numerous nonrenewable energy such as fossil fuels and biomass for practical applications. [1][2][3] Water electrolysis is a hopeful strategy for efficient and sustainable hydrogen production, but not cost-effective due to the need for large electricity consumption. [4,5] It remains challenging to achieve highly effective hydrogen production with lowcost and renewable energy.Sunlight is an endlessly renewable energy source, which can substitute fossil fuels. In this regard, coupling of sunlight and water electrolysis is desperately needed. The photovoltaic module coupled with water electrolyzers (PV-EC) to achieve the direct conversion of solar energy into hydrogen fuel is a good choice for sustainable energy system. The solar-driven water electrolysis can be achieved through the electrical power generated by a photovoltaic system for driving an external water electrolyzer. [6][7][8] The solar cells do not need to immerse into the electrolyte and not be vulnerable to corrosion in this configuration. However, the high cost of solar photovoltaic devices limits its practical applications. Integrated photoelectrochemical (PEC) devices comprising a photovoltaic device and a water electrolyzer in a single device have aroused much attention. [9][10][11] It allows the direct coupling of light absorbers and catalysts, which could reduce the cost and mechanical limitations. One of the most prominent works is the "artificial leaf", which comprises a triple junction and amorphous silicon photovoltaic interfaced to hydrogen-and oxygen-evolving catalyst for achieving an efficiency of 4.7%. [12] Considering the fluctuating output power and intrinsically intermittent nature of solar energy, a rechargeable energy storage device could be introduced to serve as a reservoir to offer a stable electrical output and accommodate solar energy. The PV-ES-EC system can thus be achieved through the fabrication of an efficient energy storage device to couple the photovoltaic device and water electrolyzer.Notably, the above solar-driven water electrolysis systems require highly conductive and stable separators, highly Solar-driven water electrolysis has been considered to be a promising route to produce green hydrogen, because the conventional water electrolysis system is not completely renewable as it requires power from nonrenewable fossil fuel sources. This review emphasizes the strategies for solar-driven water electrolysis, including the construction of photovoltaic (PV)-water electrolyzer systems, PV-rechargeable energy storage devicewater electrolyzer systems with solar energy as the sole input energy, and photo...

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Section: Pv‐ec Systemmentioning

confidence: 99%

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Zhao

Yuan

2023

Advanced Energy Materials

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“…In addition, approximately 20% of the manufacturing costs of HJT solar cells currently originate from metallization, including the Ag paste and screen [36]. To improve photoelectric performance and reduce the manufacturing cost, various metallization technologies have been developed in the PV industry.…”

Section: Hjt Solar Cellsmentioning

confidence: 99%

Review on Metallization Approaches for High-Efficiency Silicon Heterojunction Solar Cells

Zeng

Peng

Wang

et al. 2022

Trans. Tianjin Univ.

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Crystalline silicon (c-Si) heterojunction (HJT) solar cells are one of the promising technologies for next-generation industrial high-efficiency silicon solar cells, and many efforts in transferring this technology to high-volume manufacturing in the photovoltaic (PV) industry are currently ongoing. Metallization is of vital importance to the PV performance and long-term reliability of HJT solar cells. In this review, we summarize the development status of metallization approaches for high-efficiency HJT solar cells. For conventional screen printing technology, to avoid the degradation of the passivation properties of the amorphous silicon layer, a low-temperature-cured (< 250 ℃) paste and process are needed. This process, in turn, leads to high line/contact resistances and high paste costs. To improve the conductivity of electrodes and reduce the metallization cost, multi-busbar, fine-line printing, and low-temperature-cured silver-coated copper pastes have been developed. In addition, several potential metallization technologies for HJT solar cells, such as the Smart Wire Contacting Technology, pattern transfer printing, inkjet/FlexTrailprinting, and copper electroplating, are discussed in detail. Based on the summary, the potential and challenges of these metallization technologies for HJT solar cells are analyzed.

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“…On the other hand, demand for higherefficiency solar cells is expected to keep growing as we move toward a more sustainable energy future. N-type solar cells, such as silicon heterojunction (SHJ) cells, [2][3][4][5][6] play an increasingly important role in the solar industry due to their high efficiency, low degradation rate, and improved performance under high temperatures (>25 °C). However, SHJ solar cells require electrodes composed of transparent conducting oxides (TCO) such as indium tin oxide (ITO) or indium oxide codoped with hydrogen and transition metals.…”

Section: Introductionmentioning

confidence: 99%

Amorphous SnO₂ as Earth‐Abundant Stable Transparent Conductive Oxide and Its Application to Si Heterojunction Solar Cells

2023

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Transparent conductive oxides that contain indium are widely used in various applications including solar cells. However, In is regarded as one of the critical and economically volatile elements, hindering its massive use in production. Herein, the possibility of using amorphous (a‐)SnO2 transparent conductive oxides (TCOs) instead of In2O3‐based TCOs in silicon heterojunction (SHJ) solar cells is explored. Reactive plasma deposition is utilized to fabricate a‐SnO2 thin films suitable for solar cells, demonstrating good electrical conductivity (>1 × 103 S cm−1) and high damp heat stability while maintaining high transparency in the visible and near‐infrared regions. Furthermore, the a‐SnO2 film exhibits a larger optical bandgap than a‐In2O3‐based TCOs. When the a‐SnO2 layer is applied to SHJ solar cells, it is found that the TCO layer shows almost no negative effect on fill factor, open‐circuit voltage, and short‐circuit current density compared to solar cells with indium tin oxide layers. In‐free rear‐junction SHJ solar cells with a‐SnO2 on both sides of the wafer show an efficiency of 22.2%, suggesting the potential of a‐SnO2 as a cost‐effective and sustainable substitute for conventional In2O3‐based TCOs used in solar cells and other applications.

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Toward Efficiency Limits of Crystalline Silicon Solar Cells: Recent Progress in High‐Efficiency Silicon Heterojunction Solar Cells (Adv. Energy Mater. 23/2022)

Cited by 18 publications

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Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Review on Metallization Approaches for High-Efficiency Silicon Heterojunction Solar Cells

Amorphous SnO₂ as Earth‐Abundant Stable Transparent Conductive Oxide and Its Application to Si Heterojunction Solar Cells

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Toward Efficiency Limits of Crystalline Silicon Solar Cells: Recent Progress in High‐Efficiency Silicon Heterojunction Solar Cells (Adv. Energy Mater. 23/2022)

Cited by 18 publications

References 0 publications

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Review on Metallization Approaches for High-Efficiency Silicon Heterojunction Solar Cells

Amorphous SnO2 as Earth‐Abundant Stable Transparent Conductive Oxide and Its Application to Si Heterojunction Solar Cells

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Amorphous SnO₂ as Earth‐Abundant Stable Transparent Conductive Oxide and Its Application to Si Heterojunction Solar Cells