0.76% absolute efficiency increase for screen-printed multicrystalline silicon solar cells with nanostructures by reactive ion etching

Chen, Wenhua; Hong, Franklin Chau Nan

doi:10.1016/j.solmat.2016.05.046

Cited by 42 publications

(13 citation statements)

References 21 publications

(23 reference statements)

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“…Scalable fabrication of b‐Si at a low cost is critical for industrial applications in silicon solar cells but remains a major challenge. Over the past decades, reactive ion etching, [ 23–27 ] electrochemical etching, [ 28–30 ] laser micro structuring, [ 15,31–34 ] and metal‐assisted chemical etching (MacEtch or MACE), [ 16,17,35–41 ] have been developed for the micro/nanostructuring of silicon surfaces for b‐Si fabrication. To date, one of the strongest trends in b‐Si production is the utilization of metal‐catalyzed etching of silicon in oxidizing HF solutions owing to the following advantages: simplicity, rapidity, versatility, and scalability.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Assisted Chemical Etching of Silicon in Oxidizing HF Solutions: Origin, Mechanism, Development, and Black Silicon Solar Cell Application

Huo

Wang

et al. 2020

Adv Funct Materials

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Metal-assisted chemical etching (MacEtch) of silicon in oxidizing hydrofluoric acid (HF) solutions has emerged as a prominent top-down micro/nanofabrication approach for a wide variety of silicon micro/nanostructures. The popularity of the process is due to its simplicity, rapidity, versatility, and scalability. In recent years, there has been a surge of interest in developing MacEtch silicon micro/nanostructures for advanced energy conversion and storage applications, such as photovoltaic devices, thermoelectric devices, lithiumion rechargeable batteries, and supercapacitors. Particularly, MacEtch has emerged as a powerful surface micro/nanostructuring method for low-cost and scalable production of commercial black silicon (b-Si) with excellent light trapping properties. This review on MacEtch processing of silicon in oxidizing HF solutions provides a critical description of its history and origin including how it evolved into what it is today, the understanding of its mechanism and important technical advances in the field. As regards MacEtch-fabricated b-Si, its initial discovery and further improvements to its large-scale deployment in silicon photovoltaic industry are traced. Some fundamental challenges and perspectives in this exciting field are also discussed.

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Section: Introductionmentioning

confidence: 99%

Metal‐Assisted Chemical Etching of Silicon in Oxidizing HF Solutions: Origin, Mechanism, Development, and Black Silicon Solar Cell Application

Huo

Wang

et al. 2020

Adv Funct Materials

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“…A rich variety of optical structures can increase the transmittance property of the film, such as pyramid, inverted pyramid, sub-wavelength grating, nanowire array, biomimetic and so on (Chen and Hong, 2016;Haase and Stiebig, 2007;Esteban et al, 2010;Huang et al, 2012). For a randomly textured surface, the increased transmittance is explained by a second reflection of the incident light at the sidewalls.…”

Section: Resultsmentioning

confidence: 99%

Enhancing photovoltaic performance of perovskite solar cells with silica nanosphere antireflection coatings

et al. 2018

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Peer reviewed versionCyswllt i'r cyhoeddiad / Link to publication Dyfyniad o'r fersiwn a gyhoeddwyd / Citation for published version (APA): S. (2018). Enhancing photovoltaic performance of perovskite solar cells with silica nanosphere antireflection coatings. Solar Energy, 169, 128-135. A B S T R A C TOrganic-inorganic halide perovskite solar cells have enormous potential to impact the existing photovoltaic industry. As realizing higher power conversion efficiency (PCE) of the solar cell is still the most crucial task, a great number of schemes were proposed to minimize the carrier loss by optimizing the electrical properties of the perovskite solar cells (PSCs). Here, we focus on another significant aspect that is to minimize the light loss by using an antireflection coating (ARC) component to gain a high PCE for PSC devices. In our scheme, silica nanosphere based ARCs are employed to CH 3 NH 3 PbI 3 PSCs for enhancing the device efficiency. SiO 2 nanosphere based ARCs were grown by spin-coating of an aged silica sol. The microstructure and the thickness of the SiO 2 nanosphere based ARC were controlled by changing the spin-coating speed from 400 to 4000 rpm. The effect of SiO 2 nanosphere based ARCs on the photovoltaic performance of perovskite solar cells is systematically investigated. The optimized SiO 2 nanosphere ARC coating on cleaned glass substrate exhibited a maximum transmittance of 96.1% at λ = 550 nm wavelength, and averagely increased the transmittance by about 3.8% in a broadband of 400-800 nm. The optimized antireflection coating strongly suppressed broadband and wideangle reflectance in typical PSC solar cells, significantly enhancing the omnidirectional photovoltaic (PV) performance of PSCs. As a result, the power conversion efficiency was improved from 14.81% for reference device without SiO 2 nanospheres to 15.82% for the PSC device with the optimized ARC. Also, the PV performance of the PSC device with the optimized SiO 2 nanosphere ARC revealed less angular dependence for incident light.

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“…Importantly, both isotropic and anisotropic etching profiles are obtainable in the process of the reactive ion etching which is thus serving as one of the most important etching techniques in device manufacturing. [ 43,44 ]…”

Section: Fabrication Of Well‐defined Nanostructuresmentioning

confidence: 99%

Well‐Defined Nanostructures for Electrochemical Energy Conversion and Storage

Adekoya

et al. 2020

Advanced Energy Materials

131

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existing energy supply systems mainly based on fossil fuels, the performance of the clean energy (conversion and storage) devices/systems has to be significantly improved. The electrochemical energy conversion and storage usually involves many intricate chemical reactions and physical interactions at the surface and inside of electrodes/electrolytes, and the kinetics and transport behaviors of different carriers (e.g., electrons, holes, ions, molecules) are closely associated with the materials selected for electrodes as well as the structures of electrodes. To this point, material design and structure design for electrodes have been the research focuses for improving the electrochemical performance of energy conversion and storage, which both have gained high attention from academia and industry.Along with researches for finding advanced electrode materials, much recent research efforts have been made for electrode structure design and engineering, especially when traditional macro-scale structured electrodes are showing limitations of achieving satisfying performance for energy conversion and storage. Among these efforts, electrode nanostructuring has been demonstrated as a promising way for realizing highperformance electrochemical energy conversion and storage, which attributes the distinct features of nanostructured materials differing from their bulk material counterparts. The high surface-to-volume ratios of nanostructures give large electrochemical surface areas with much more exposed atoms and hence improve the performance per unit electrode area and/or Electrochemical energy conversion and storage play crucial roles in meeting the increasing demand for renewable, portable, and affordable power supplies for society. The rapid development of nanostructured materials provides an alternative route by virtue of their unique and promising effects emerging at nanoscale. In addition to finding advanced materials, structure design and engineering of electrodes improves the electrochemical performance and the resultant commercial competitivity. Regarding the structural engineering, controlling the geometrical parameters (i.e., size, shape, heteroarchitecture, and spatial arrangement) of nanostructures and thus forming well-defined nanostructure (WDN) electrodes have been the central aspects of investigations and practical applications. This review discusses the fundamental aspects and concept of WDNs for energy conversion and storage, with a strong emphasis on illuminating the relationship between the structural characteristics and the resultant electrochemical superiorities. Key strategies for actualizing well-defined features in nanostructures are summarized. Electrocatalysis and photoelectrocatalysis (for energy conversion) as well as metal-ion batteries and supercapacitors (for energy storage) are selected to illustrate the superiorities of WDNs in electrochemical reactions and charge carrier transportation. Finally, conclusions and perspectives regarding future research, development, and applications of WDNs...

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0.76% absolute efficiency increase for screen-printed multicrystalline silicon solar cells with nanostructures by reactive ion etching

Cited by 42 publications

References 21 publications

Metal‐Assisted Chemical Etching of Silicon in Oxidizing HF Solutions: Origin, Mechanism, Development, and Black Silicon Solar Cell Application

Metal‐Assisted Chemical Etching of Silicon in Oxidizing HF Solutions: Origin, Mechanism, Development, and Black Silicon Solar Cell Application

Enhancing photovoltaic performance of perovskite solar cells with silica nanosphere antireflection coatings

Well‐Defined Nanostructures for Electrochemical Energy Conversion and Storage

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