Muchikamu che tekinoroji ye photovoltaic chiri kushanduka nekukurumidza, HJT (Heterojunction) ne TOPCon (Tunnel Oxide Passivated Contact) ndizvo zvave zviri kutariswa neindasitiri. Zvisinei, nekuunzwa kwezvinhu zve perovskite, HJT yakasanganiswa ne perovskite iri kuwana mukurumbira nekuda kwezvakanaka zvayo zvakasiyana, ichiva nyaya inonyanya kufarirwa muindasitiri yezuva. Chinyorwa chino chinoongorora mabhenefiti e HJT yakasanganiswa ne perovskite kupfuura TOPCon uye kuti musanganiswa uyu uri kuumba sei ramangwana retekinoroji ye photovoltaic.
1. Nhanganyaya yeHJT Technology
HJT inozivikanwa nekushanda kwayo zvakanaka kwe photoelectric conversion uye kushanda kwayo zvakanaka mumamiriro ekunze asina chiedza chakawanda. Inogadzira heterojunction nekuisa silicon thin film isina chimiro pa crystalline silicon substrate, ichideredza kubatanidzwa kwenzvimbo uye kuwedzera voltage ye open-circuit uye short-circuit current ye cell.
2. Matambudziko neTEKINONI YE TOPCon
TOPCon inoita kuti passive surface passivation ikwanise kuitwa nekushandisa oxide layer ne polycrystalline silicon layer pamusoro wesero, zvichideredza kurasikirwa kwe recombination. Zvisinei, kuwana recombination yakanyanya neTOPCon kunosangana nematambudziko, anosanganisira maitiro akaomarara, manejimendi emari, uye kuoma kwekuvandudza mashandiro.
3. Basa reZvishandiso zvePerovskite
Zvinhu zvePerovskite zvakanaka pakusimudzira kushanda zvakanaka kwemasero ezuva nekuda kwehuwandu hwazvo hwekupinza simba, gap inogadziriswa, uye hunhu hwekugadzirisa mhinduro. Nekubatanidza perovskite netekinoroji yeHJT, zvinokwanisika kushandisa kushanda zvakanaka kweHJT uye kuwedzera kugona kwayo kuburikidza nehunhu hweperovskite hwekupinza simba hwakakura.
4. Mabhenefiti eHJT Yakasanganiswa nePerovskite
a. Kushanda Kwakanaka Kwekushandura Photoelectric:Kuwedzerwa kweperovskite kunowedzera zvakanyanya mhinduro yemasero eHJT, zvichiwedzera huwandu hwemasero anotakura akagadzirwa nemufananidzo. Masero eHJT, ane muganho wekushanda kwedzidziso we27.5%, atopfuura matekinoroji ePV echinyakare. Maumbirwo eheterojunction, achichinjana amorphous uye crystalline silicon layers, anowedzera kunyudzwa kwechiedza, achivandudza kushanda kwesimba.
b. Kugadzikana Kuri Nani:Masero eHJT haangopi chete kushanda zvakanaka asiwo kugadzikana kwakanyanya. Hurongwa hweHJT-perovskite tandem hunochengetedza kushanda zvakanaka kwepamusoro-soro pasi pekushanda kwenguva refu, kusiyana neTOPCon-perovskite, iyo, pasinei nemitengo yakaderera yekugadzira, inotambura kuenzana neHJT maererano nekushanda zvakanaka.
c. Maitiro Ekugadzira Akareruka:Kugadziriswa kwezvishandiso zveperovskite kunoderedza mari yekugadzira, zvakakosha pakuderedza mutengo wemagetsi (LCOE). Masero eHJT ane mukana wekugadzira, achishandisa low-temperature chemical vapor deposition (CVD) kuisa amorphous silicon layers, zvichiteverwa ne transparent conductive oxide (TCO) uye p-type kana n-type amorphous silicon layers. Maitiro aya akareruka anoderedza mari uye anovandudza goho remubereko zvichienzaniswa ne TOPCon's high-temperature annealing process, iyo inowedzera mari yekugadzira uye kusiyana kwemhando.
d. Kugadzira Zvisina Kukuvara:Zvinhu zvePerovskite zvinopa nzira yekugadzira ine hushamwari kune nharaunda sezvo zvisingasanganisire zvinhu zvine chepfu kana zvisingawanzoitiki. Kusiyana nezvimwe zvinhu zvePV zvinoda zvinhu zvine njodzi senge lead kana cadmium, perovskites hadzina chepfu yakadaro, zvichideredza njodzi dzezvakatipoteredza uye dzehutano. Uyezve, perovskites hadzivimbi nezvinhu zvisingawanzoitiki, izvo zvinogona kukuvadza nharaunda. Kugadzirwa kwazvo kunodya simba shoma, zvichikonzera kudzikira kwemhepo inoburitsa kabhoni.
Mukupedzisa, kusanganiswa kweHJT neperovskite kunomiririra gwara rinovimbisa rekufambira mberi kwe photovoltaic mune ramangwana, nezvakanaka zvayo mukushanda zvakanaka, kugadzikana, kushanda zvakanaka kwemari, uye kuchengetedzeka kwezvakatipoteredza kupfuura TOPCon muzvinhu zvakawanda.
