33.25% Inganci, 96% MPPT Rike Bayan Sa'o'i 1000: All-ALD SnOx/AZO Bilayer Yana Hana Halayen Mu'amala a cikin Perovskite/Silicon Tandems
Gabatarwar Samfur
Tantanin tandem na perovskite/silicon sun riga sun kai inganci 35%. Matsalar ita ce kwanciyar hankali. Waɗannan na'urorin har yanzu suna da nisa daga buƙatun kasuwanci na tsawon shekaru 25, kuma tushen matsalar yana kan mu'amala. Caji yana taruwa a can, kuma wannan taruwa yana haifar da halayen redox da ƙaurawar ion.
Babban amfani da ALD-SnOx electron transport layer yana fuskantar matsalar kauri saboda yawan juriyarsa. Idan ya yi kauri sosai, juriyar jerin tana hawa. Idan ya yi siriri sosai, ba zai iya toshe lalacewar sputter ko yaduwar ion ba. Don nazarin wannan, na'urar gwajin MPPT na perovskite composite ta amfani da hasken rana na LED na AAA-grade a matsayin tushen haske na tsufa na iya sarrafa zafin tantanin halitta ta hanyoyi da yawa da kuma sarrafa yanayin kewaye, tana gudanar da gwaje-gwajen karko na dogon lokaci.
Wannan aikin yana gina bilayer na SnOx/AZO ta hanyar tsarin all-ALD. SnOx mai siriri sosai yana kiyaye daidaiton band, yayin da Layer na AZO mai gudanarwa yana ba da hanya mai ƙarancin juriya kuma yana aiki a matsayin shinge mai yawa. Wannan yana raba cirewar caji da toshewar jiki zuwa ayyuka biyu daban. Tantanin halitta na perovskite mai faɗin band guda ɗaya tare da wannan tsarin ya kai 23.47% inganci, kuma na'urorin tandem sun kai 33.25%. Bayan sa'o'i 1000 na haske mai ci gaba, har yanzu sun riƙe 96% na ingancinsu na farko, wanda ke goyan bayan dabarar mu'amala.
Ma'auni na Fasaha
Ƙayyadaddun Na'urar Gwajin MPPT na Perovskite Composite
| Parameter | Ƙayyadaddun Bayani |
|---|---|
| Matsayin tushen haske | A+AA+ (3A+) na'urar kwaikwayon hasken rana ta LED |
| Rayuwar tushen haske | 10,000 h+ |
| Fitar bakan (mai daidaitawa) | 350-400nm / 400-750nm / 750-1150nm, ana sarrafa kai tsaye |
| Dakin muhalli | Zaɓin zafin jiki da ɗanɗano na yau da kullun, ya dace da ma'aunin ISOS |
| Lantarki load | Samfura da yawa, aiki mai zaman kansa ta tashoshi da yawa |
| Aikace-aikace | Gwajin karko na tantanin halitta guda ɗaya da tandem na Perovskite |
Fa'idodin Fasaha
ALD Bilayer Fabrication da Ayyukan Lantarki
Gwaje-gwajen guda ɗaya sun nuna SnOx yana aiki mafi kyau a zagaye 150. Yin kauri ya ƙara juriya na jerin kuma ya sauke fill factor. Don rage iyakar resistivity, marubutan sun ƙara wani ALD-grown AZO interlayer. An kwatanta tari biyu: 250-cycle SnOx da 100-cycle SnOx tare da 400-cycle AZO.
Ma'aunin J-V ya nuna haɗin SnOx/AZO ya ɗaga aikin na'urar. Binciken matakin makamashi ya gano cewa mafi ƙarancin band conduction yana sauka daga SnOx zuwa AZO zuwa IZO, yana samar da mafi kyawun tsarin band na matakala wanda ke rage shingen cirewa. c-AFM ya nuna SnOx/AZO da AZO zalla suna gudanar da aiki mafi kyau fiye da SnOx zalla. KPFM ya nuna mafi daidaitaccen yanayin saman da ƙarancin lahani akan fim ɗin perovskite na SnOx/AZO. Transient absorption spectroscopy ya tabbatar da saurin cirewa tare da SnOx/AZO.
ALD Layer Yana Hana Lalacewa
Bayan sa'o'i 400 na tsufa a 85°C a ƙarƙashin haske, samfuran SnOx sun nuna ƙarfin shan lead iodide a UV-vis, ƙarfin haɗin Pb⁰ na ƙarfe a XRD, da kuma guraben fuska da asarar girma a cikin SEM. A cikin samfuran SnOx/AZO, waɗannan alamun lalacewa sun yi rauni sosai. TOF-SIMS ya nuna shigar Ag mai yawa a cikin perovskite da kuma yaduwar I⁻ mai tsanani a cikin na'urorin SnOx, yayin da na'urorin SnOx/AZO ba su nuna wani yaduwar ion ba.
Bayan kwanaki 7 a 85% RH, fim ɗin da aka rufe da SnOx ya sami rawaya δ lokaci, amma SnOx/AZO ya kasance baki. Ma'aunin PLQY ya nuna ƙarancin asarar sake haɗuwa mara haske da kuma riƙe PLQY mafi girma bayan tsufa ga SnOx/AZO. KPFM ya nuna babban tsalle a yawan lahani na saman ga samfurin SnOx da ya tsufa, yayin da SnOx/AZO ya ɗan canja.
Aikace-aikacen Samfur
Aiki da Tsayayyen Tantanin Halitta Guda ɗaya
A cikin na'urorin guda ɗaya tare da tsarin ITO / NiOx / Me-4PACz / perovskite / C60 / ALD Layer / Ag, SnOx/AZO champion ya kai 23.47% inganci, VOC 1.27 V, FF 83.92%, JSC 22.07 mA/cm², tare da raguwar hysteresis a fili. Yawan halin yanzu da aka haɗa EQE ya kasance 21.62 mA/cm², sama da na'urar SnOx 20.92 mA/cm². Ƙarfin fitarwa mai daidaitawa ya kasance 23.12%. Makamashin Urbach ya zo a 13.11 meV, ƙasa da na'urar SnOx 16.38 meV.
A kan kwanciyar hankali, bayan sa'o'i 1100 na tsufa mai duhu a 85°C, SnOx/AZO ya riƙe sama da 90% na ingancinsa na farko, yayin da SnOx ya ragu zuwa 85% a sa'o'i 600. A ƙarƙashin 85°C tare da haske, SnOx/AZO ya ci gaba da kasancewa sama da 80% bayan sa'o'i 300, yayin da SnOx ya faɗi ƙasa da 60% bayan sa'o'i 200. A gwajin MPPT, SnOx/AZO ya riƙe 96% bayan sa'o'i 2000, yayin da SnOx ya faɗi zuwa 80% bayan sa'o'i 700.
Ayyuka da Kwanciyar Hankali na Tandem Cell
An haɗa ALD bilayer a cikin na'urar tandem perovskite/TOPCon silicon. HAADF-STEM ya nuna bilayer mai ci gaba, mai yawa tare da SnOx kusan 10 nm da AZO kusan 60 nm, babu pinholes ko delamination. HR-TEM ya tabbatar da cewa SnOx amorphous ne, kuma EDS ya nuna rarraba Zn iri ɗaya a cikin AZO.
Na'urar tandem ta zakara ta kai inganci 33.25%, VOC 1.98 V, JSC 20.83 mA/cm², FF 80.71%, tare da kusan babu hysteresis. EQE ya nuna photocurrents na saman da ƙasa cell na 20.43 da 20.40 mA/cm², daidaitawa mai kyau. Ƙarfin fitarwa mai ƙarfi ya kasance 32.38%.
Bayan sa'o'i 1000 na tsufa mai zafi a 85°C, SnOx/AZO ya riƙe sama da 90% inganci, yayin da SnOx ya faɗi ƙasa da 90% a cikin sa'o'i 400. A gwajin damp-heat (biyu 85), SnOx/AZO ya tsaya sama da 92% bayan sa'o'i 400, yayin da SnOx ya faɗi ƙasa da 80% a cikin sa'o'i 200. Bayan sa'o'i 1000 na haske mai ci gaba, SnOx/AZO ya riƙe sama da 96%, yayin da SnOx ya faɗi ƙasa da 80% a cikin sa'o'i 300.
Takaitaccen Tsarin Aiki
Amfanin bilayer SnOx/AZO ya ta'allaka ne ga abubuwa biyu. Hular AZO mai gudanarwa tana hanzarta fitar da lantarki kuma tana yanke gina cajin mu'amala, wanda ke hana lalacewar mu'amala da ke haifar da amsawa. A lokaci guda, bilayer mai yawa yana aiki azaman shingen ion da danshi mai inganci, yana hana lalacewar azurfa da ke haifar da iodide da ƙaurawar Ag⁺ zuwa cikin perovskite. Fitar da lantarki cikin sauri tare da toshe ion na jiki yana ba da tsarin "rabewar aiki", don haka tasirin biyu suna ƙarfafa juriyar na'urar tare.
Wannan binciken yana amfani da bilayer SnOx/AZO na all-ALD don hana lalacewar mu'amala da ke haifar da amsawa a cikin sel tandem perovskite/silicon. Bilayer yana haɗa daidaitaccen layin band na SnOx tare da babban gudanarwa da aikin shinge mai yawa na AZO, yana yanke tarin caji kuma yana hana yaduwar ion da shigar danshi. Na'urori masu haɗin gwiwa guda ɗaya sun kai 23.47% inganci, na'urorin tandem 33.25%, kuma duka sun kiyaye sama da 96% na ingancin farko bayan sa'o'i 1000 na MPPT. Yana nuna yadda aikin injiniyan mu'amala yake da mahimmanci ga gina perovskite/silicon tandem PV mai inganci da karko, kuma yana nuna hanya ta gaske zuwa sel masu inganci da dorewa.
Mai gwada MPPT na perovskite composite, wanda aka gina a kusa da hasken rana na LED A+AA+ a matsayin tushen haske na tsufa, yana ba da goyon baya mai ƙarfi ga binciken hasken rana na perovskite. Saboda ƙwayoyin perovskite suna da hankali ga haske da zafin jiki, madaidaicin ikon su yana canzawa koyaushe. Mai sarrafa MPPT yana bin diddigin wannan batu a ainihin lokaci, don haka tsarin koyaushe yana fitar da mafi kyawun ikonsa. Wannan yana ƙara yawan samar da makamashi kuma yana inganta kwanciyar hankali da tattalin arzikin tsarin PV gaba ɗaya.
Tushen: Danne Huldar Interfacial a cikin Perovskite/Silicon Tandem Solar Cells ta hanyar All-ALD SnOx/AZO Bilayer
Ra'ayin Ooitech
Abin da ya fito a nan shi ne ra'ayin 'functional decoupling', barin wani siririn Layer ya kula da daidaita band kuma wani ya kula da toshewa, maimakon tilasta wani fim na SnOx guda ɗaya ya yi ayyukan biyu kuma ya rasa ɗaya daga cikinsu. A gefen samarwa, daidaiton tarin ALD a cikin cikakken girman module shine ainihin inda layin sarrafawa da metrology ke da mahimmanci, kuma shine irin cikakken tsari da muke damuwa da shi yayin gina layin module. Idan kuna son ganin ƙarin yadda perovskite da tandem module manufacturing ke haɗuwa a zahiri a filin masana'anta, tashar YouTube ta Ooitech (www.youtube.com/ooitech) tana da daraja a bi.
