Texturization of silicon wafers with Na2CO3 and Na2CO3/NaHCO3 solutions for heterojunction solar-cell applications
| dc.contributor.author | Barrio, Rocío | |
| dc.contributor.author | González, Nieves | |
| dc.contributor.author | Cárabe, Julio | |
| dc.contributor.author | Gandía, Javier | |
| dc.date.accessioned | 2026-01-20T16:45:00Z | |
| dc.date.available | 2026-01-20T16:45:00Z | |
| dc.date.issued | 2026-01-20 | |
| dc.description.abstract | Theformationofpyramidalstructuresbyanisotropicetchingof/100S-orientedmono crystalline siliconwafer surfaces is an effectivemethod to reduce reflection losses originatingonthefrontsideofconventionalsiliconsolarcellsandsilicon-heterojunction (SHJ)solarcells.Oneofthemostcommonmethodsoftexturizationusedinthesolar-cell industry isbasedonaqueous solutionsofNaOHorKOHand isopropyl alcohol (IPA). However, IPAis toxicandrelativelyexpensive, soeffortsarebeingmadetoreplace it. Among the potential alternatives, solutions based on Na2CO3 and Na2CO3/NaHCO3 mixtureshavebeenproposed. Inthepresent study, solutionsofNa2CO3 andNa2CO3/ NaHCO3mixtureswerepreparedinordertoformpyramidalstructuresonsiliconwafer surfaces. Itwasnotpossibletoobtainuniformandcompletelytexturedsurfacesbyusing aqueoussolutionsconsistingonlyofNa2CO3.NaHCO3mustbeaddedinordertoachieve uniformtexturedsurfaceswithlowhemispherical reflectancesuitableforSHJ solar-cell applications. Textured surfaceswithgooduniformity and lowaveragehemispherical reflectance (15.4%)wereprepared from/100Ssiliconsubstrateswithrelatively low etchingtimes (25min).Goodsurfacepassivation(lifetime4600msandimplicitopen circuitvoltageof690710mV)onthesep-typetexturedwaferswereachieved. | es_ES |
| dc.identifier.doi | https://doi.org/10.1016/j.mssp.2012.08.004 | |
| dc.identifier.issn | 1369-8001 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14855/5536 | |
| dc.language.iso | eng | es_ES |
| dc.rights.accessRights | open access | es_ES |
| dc.subject | Texturization | es_ES |
| dc.subject | solar-cell | es_ES |
| dc.subject | Heterojuction | es_ES |
| dc.subject | Sodium Carbonate | es_ES |
| dc.title | Texturization of silicon wafers with Na2CO3 and Na2CO3/NaHCO3 solutions for heterojunction solar-cell applications | es_ES |
| dc.type | journal article | es_ES |
| dc.type.hasVersion | SMUR | es_ES |
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