Photovoltaic performance of c-Si wafer reclaimed from end-of-life solar cell using various mixing ratios of HF and HNO3

Lee, Jun-Kyu; Lee, Jin-Seok; Ahn, Young-Soo; Kang, Gi‐Hwan; Song, Hee‐eun; Lee, Jeong-In; Kang, Min‐Gu; Cho, Churl-Hee

doi:10.1016/j.solmat.2016.10.034

Cited by 44 publications

(17 citation statements)

References 27 publications

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“…However, the surface condition of the reclaimed wafer was altered by the posttreatment process for reclaiming the c‐Si wafer from the recovered unbroken solar cell. Hence, the textured pyramids of the REW solar cell were smaller than those of the COW solar cell, thereby explaining the large reflectance compared with the COW solar cell . As a result, the external quantum efficiency of the REW solar cell was lower than that of the COW solar cell, which reduced the J sc of the REW solar cell.…”

Section: Resultsmentioning

confidence: 99%

“…Except for the cleaning process, the chemical etching process comprised only one step: the simultaneous removal of unnecessary components, such as the front and back electrodes, antireflection (AR) coating layer, emitter layer, and back surface field layer. The experimental procedure of the chemical etching process was discussed in detail in our previous research …”

Section: Methodsmentioning

confidence: 99%

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Simple pretreatment processes for successful reclamation and remanufacturing of crystalline silicon solar cells

Lee

Ahn

et al. 2017

Progress in Photovoltaics

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This study presents an effective method for recovering unbroken solar cells from photovoltaic (PV) modules. The combustion process is effective at removing ethylene vinyl acetate (EVA) in PV modules. However, the solar cell tends to break during the combustion process. We verify that the breakage mechanisms of the solar cell in the module are related to the thermal changes of EVA during the heat treatment process, that is, generated gases form bubbles behind the glass, and the thermal deformation of the rear EVA applies stress to the solar cell. This study investigates the simple pretreatments of glass cracking and EVA patterning to prevent the breakage behavior. An unbroken solar cell was successfully recovered from the module after complete EVA removal using the combustion process. The recovered solar cell was immersed in a mixed acid solution of HNO 3 and HF to reclaim the crystalline silicon wafer, which subsequently underwent the solar cell manufacturing process. The PV performances of the solar cells based on the reclaimed wafer and a commercial wafer were evaluated and compared. The PV performance of the solar cell manufactured from the reclaimed wafer was measured at 18.5%, whereas that from the commercial wafer-based solar cell was measured at 18.7%. Consequently, the considered pretreatment processes yielded solar cells acceptable for use in the PV industry.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Simple pretreatment processes for successful reclamation and remanufacturing of crystalline silicon solar cells

Lee

Ahn

et al. 2017

Progress in Photovoltaics

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“…4,5 Moreover, EoL PV modules are officially regarded as waste electrical and electronic equipment (WEEE) by the European Union (EU) commission, which means that waste PV modules must be collected and recycled by appropriate ways. [5][6][7] PV modules contain valuable materials such as silicon (Si), silver (Ag), aluminum (Al), copper (Cu), and gallium (Ga) and hazardous materials such as lead (Pb) and cadmium (Cd), which are harmful to humans. 8,9 From the economic efficiency aspect, it is quite signicant to recycle valuable materials, especially silicon, which can ensure the sustainability of the supply chain in the long term and reduce the energy payback time (EPBT).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it has been reported that the unbroken wafers are almost identical to commercial virgin wafers. 6,7 So far, most research works have focused on the chemical leaching method to recycle clean silicon wafers by removing silver, aluminum, the anti-reection (AR) coating and n-p connector. 6,7,[17][18][19][20][21] However, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…6,7 So far, most research works have focused on the chemical leaching method to recycle clean silicon wafers by removing silver, aluminum, the anti-reection (AR) coating and n-p connector. 6,7,[17][18][19][20][21] However, as shown in Fig. 2, in the silicon recycling process, the aluminium alloy outline border, the TPT backing materials, the junction box and the tempered glass should be removed from the crystalline silicon solar panel beforehand.…”

Section: Introductionmentioning

confidence: 99%

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Pyrolysis-based separation mechanism for waste crystalline silicon photovoltaic modules by a two-stage heating treatment

et al. 2019

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Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices

Pang

Bachmatiuk

Yin

et al. 2017

Advanced Energy Materials

448

253

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Black phosphorus was first synthesized by Bridgman in 1914 [1] but has been less intensively studied in the past century due The successful isolation of phosphorene (atomic layer thick black phosphorus) in 2014 has currently aroused the interest of 2D material researchers. In this review, first, the fundamentals of phosphorus allotropes, phosphorene, and black phosphorus, are briefly introduced, along with their structures, properties, and synthesis methods. Second, the readers are presented with an overview of their energy applications. Particularly in electrochemical energy storage, the large interlayer spacing (0.53 nm) in phosphorene allows the intercalation/deintercalation of larger ions as compared to its graphene counterpart. Therefore, phosphorene may possess greater potential for high electrochemical performance. In addition, the status of lithium ion batteries as well as secondary sodium ion batteries is reviewed. Next, each application for energy generation, conversion, and storage is described in detail with milestones as well as the challenges. These emerging applications include supercapacitors, photovoltaic devices, water splitting, photocatalytic hydrogenation, oxygen evolution, and thermoelectric generators. Finally the fast-growing dynamic field of phosphorene research is summarized and perspectives on future possibilities are presented calling on the efforts of chemists, physicists, and material scientists

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Photovoltaic performance of c-Si wafer reclaimed from end-of-life solar cell using various mixing ratios of HF and HNO3

Cited by 44 publications

References 27 publications

Simple pretreatment processes for successful reclamation and remanufacturing of crystalline silicon solar cells

Simple pretreatment processes for successful reclamation and remanufacturing of crystalline silicon solar cells

Pyrolysis-based separation mechanism for waste crystalline silicon photovoltaic modules by a two-stage heating treatment

Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices

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