1. Maitiro ekushandisa madope eSE Laser
Chinangwa:Maitiro eSelective Emitter (SE) laser doping anovandudza emitter layer paN-type TOPCon cell kuderedza kuramba kusangana uye kuvandudza mashandiro ekushandura.
Maitiro:Simba reLaser rinonyungudutsa pamusoro pesilicon, zvichiita kuti maatomu eboron (B) ari mugirazi reborosilicate apinde nekukurumidza musilicon, zvichigadzira layer ine doped yakawanda. Kuisa dope yakawanda panzvimbo dzekubatana kunoderedza kuramba kwekubatana, nepo kuisa dope yakareruka kune dzimwe nzvimbo kunoderedza kurasikirwa kwe recombination, pakupedzisira kuvandudza kushanda zvakanaka ne 0.2%-0.4%.
2. Kuumbwa kweTunnel Oxide nePolycrystalline Silicon Layers
Chinangwa:Matanda aya ari kumashure kwesilicon wafer anoita kuti pave nechimiro chekubatana chisina kubatwa, chakakosha pakuderedza kubatanidzwa kwesimbi uye kuwedzera kushanda zvakanaka.
Maitiro:Nzira yePlasma Enhanced Chemical Vapor Deposition (PECVD) inofarirwa neindasitiri inoisa 1-2nm silicon oxide film uye 100-150nm doped amorphous silicon layer, iyo inoumba crystallize panguva yekunamirwa kuti iite polycrystalline layer. PECVD inopa kukurumidza kwekuisa, kusvibiswa kwakaderera, uye mutengo wakaderera, zvichiita kuti ive sarudzo inoshanda yekugadzira zvakawanda.
3. Kuputira Kunodzivirira Kupenya (ARC)
Chinangwa:Chimiro che dielectric chine layer yakawanda (SiOx/SiONx/SiNx) chinoderedza kurasikirwa kwemaziso uye chinowedzera kupinza chiedza, zvichiwedzera photocurrent uye kushanda zvakanaka.
Mamwe Mabhenefiti:Iyo ARC inopa kufambisa pamusoro nekuderedza mwero wekudzokororwa kwenzvimbo, kuwedzera hupenyu hwemasero, uye kudzivirira zvidimbu zvakamboiswa (senge alumina iri pamberi) kubva mukukuvadzwa nekusvibiswa.
4. Kupfura Kunokonzerwa neLaser (LIF)
Chinangwa:LIF inoshandiswa kudhinda mushure mechidzitiro kuti iwedzere kubatana pakati pesimbi nesilicon. Maitiro aya anowedzera kubatana kwe ohmic uye anoderedza kuramba kwekubatana, zvichivandudza kubuda kwemagetsi.
Mhedzisiro:LIF yakaratidzwa kuti inowedzera kushanda kwekushandura ne 0.2% kana kupfuura, zvichiita kuti ive chinhu chinokosha pakugadzira TOPCon.
Matanho aya makuru anoratidza matekiniki epamusoro ekugadzira mu tekinoroji yeTOPCon, zvichibvumira kushanda zvakanaka uye kugadzikana kwakanyanya mukushanda kwemaseru ezuva.
