Textured stainless steel foil as efficient rear reflector for flexible black silicon
This paper reports textured SS foil as an efficient rear reflector for flexible b-Si. Wafer thinning by concentrated potassium hydroxide (KOH) solution followed by metal-assisted chemical etching (MACE) are used to fabricate the flexible b-Si with 67 μm thickness. After the MACE process, the b-Si ex...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379721003491 |
| _version_ | 1819298979335110656 |
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| author | Halo Dalshad Omar Auwal Abdulkadir Md. Roslan Hashim Mohd Zamir Pakhuruddin |
| author_facet | Halo Dalshad Omar Auwal Abdulkadir Md. Roslan Hashim Mohd Zamir Pakhuruddin |
| author_sort | Halo Dalshad Omar |
| collection | DOAJ |
| description | This paper reports textured SS foil as an efficient rear reflector for flexible b-Si. Wafer thinning by concentrated potassium hydroxide (KOH) solution followed by metal-assisted chemical etching (MACE) are used to fabricate the flexible b-Si with 67 μm thickness. After the MACE process, the b-Si exhibit nanowires (NWs) with average diameter of 100 nm and height of 1.25 µm. To texture the stainless steel (SS) foil, wet chemical etching involving hydrofluoric (HF) acid (49%) is used at room temperature for different durations; from 10 to 30 min. When increasing the etching time of the SS foil, the SS foil exhibits formation of random textures with the roughest morphology after being etched for 20 min. At the same etching time, the SS foil also shows the highest root mean square (RMS) surface roughness and peak texture angle with a broad angle distribution. With the textured SS foil, the flexible b-Si demonstrates absorption enhancement of 1.27 at wavelength of 1075 nm due to the enhanced light scattering at the b-Si/textured SS interface. |
| first_indexed | 2024-12-24T05:38:30Z |
| format | Article |
| id | doaj.art-c55b614217b14d268b374eb68d7ea14a |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-24T05:38:30Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-c55b614217b14d268b374eb68d7ea14a2022-12-21T17:12:55ZengElsevierResults in Physics2211-37972021-05-0124104203Textured stainless steel foil as efficient rear reflector for flexible black siliconHalo Dalshad Omar0Auwal Abdulkadir1Md. Roslan Hashim2Mohd Zamir Pakhuruddin3Photovoltaic Materials and Devices, School of Physics, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia; Department of Physics, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region, IraqPhotovoltaic Materials and Devices, School of Physics, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia; Department of Physics, Umaru Musa Yar’adua University, P. M. B. 2218 Katsina, NigeriaPhotovoltaic Materials and Devices, School of Physics, Universiti Sains Malaysia, 11800 Minden, Penang, MalaysiaPhotovoltaic Materials and Devices, School of Physics, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia; Corresponding author.This paper reports textured SS foil as an efficient rear reflector for flexible b-Si. Wafer thinning by concentrated potassium hydroxide (KOH) solution followed by metal-assisted chemical etching (MACE) are used to fabricate the flexible b-Si with 67 μm thickness. After the MACE process, the b-Si exhibit nanowires (NWs) with average diameter of 100 nm and height of 1.25 µm. To texture the stainless steel (SS) foil, wet chemical etching involving hydrofluoric (HF) acid (49%) is used at room temperature for different durations; from 10 to 30 min. When increasing the etching time of the SS foil, the SS foil exhibits formation of random textures with the roughest morphology after being etched for 20 min. At the same etching time, the SS foil also shows the highest root mean square (RMS) surface roughness and peak texture angle with a broad angle distribution. With the textured SS foil, the flexible b-Si demonstrates absorption enhancement of 1.27 at wavelength of 1075 nm due to the enhanced light scattering at the b-Si/textured SS interface.http://www.sciencedirect.com/science/article/pii/S2211379721003491Stainless steelReflectorFlexible black silicon |
| spellingShingle | Halo Dalshad Omar Auwal Abdulkadir Md. Roslan Hashim Mohd Zamir Pakhuruddin Textured stainless steel foil as efficient rear reflector for flexible black silicon Results in Physics Stainless steel Reflector Flexible black silicon |
| title | Textured stainless steel foil as efficient rear reflector for flexible black silicon |
| title_full | Textured stainless steel foil as efficient rear reflector for flexible black silicon |
| title_fullStr | Textured stainless steel foil as efficient rear reflector for flexible black silicon |
| title_full_unstemmed | Textured stainless steel foil as efficient rear reflector for flexible black silicon |
| title_short | Textured stainless steel foil as efficient rear reflector for flexible black silicon |
| title_sort | textured stainless steel foil as efficient rear reflector for flexible black silicon |
| topic | Stainless steel Reflector Flexible black silicon |
| url | http://www.sciencedirect.com/science/article/pii/S2211379721003491 |
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