33.25% Ingantacciyar Aiki, 96% MPPT Rike Bayan Sa'o'i 1000: Duk-ALD SnOx/AZO Bilayer Yana Hana Halayen Mahaɗa a cikin Perovskite/Silicon Tandems
Teburin Abubuwan Ciki
Gabatarwar Samfur
Tantanin halitta na perovskite/silicon tandem 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. Wutar lantarki tana taruwa a can, kuma wannan taruwa tana 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 AAA-grade LED solar simulator a matsayin tushen haske na tsufa na iya sarrafa zafin tantanin halitta ta hanyoyi da yawa da kuma sarrafa yanayin da ke kewaye, tana gudanar da gwaje-gwajen karko na dogon lokaci.
Wannan aikin yana gina bilayer na SnOx/AZO ta hanyar all-ALD tsari. SnOx mai siriri sosai yana kiyaye daidaiton band, yayin da conductive AZO Layer ke 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 suna riƙe da 96% na ingancinsu na farko, wanda ke goyan bayan dabarar mu'amala.
Ma'aunin Fasaha
Ƙayyadaddun Na'urar Gwajin MPPT na Perovskite Composite
| Parameter | Ƙayyadaddun Bayanai |
|---|---|
| Matsayin tushen haske | A+AA+ (3A+) LED solar simulator |
| Rayuwar tushen haske | 10,000 h+ |
| Fitar da 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 kwanciyar hankali na Perovskite mai haɗin gwiwa da tandem cell |
Fa'idodin Fasaha
Ƙirƙirar ALD Bilayer da Ayyukan Lantarki
Gwaje-gwajen haɗin gwiwa 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 stacks biyu: 250-cycle SnOx tare da 100-cycle SnOx da 400-cycle AZO.
Ma'aunin J-V ya nuna haɗin SnOx/AZO ya ɗaga aikin na'urar. Binciken matakin makamashi ya gano matakin ƙarancin conduction yana sauka daga SnOx zuwa AZO zuwa IZO, yana samar da mafi kyawun jeri na band ɗin matakala wanda ke rage shingen cirewa. c-AFM ya nuna SnOx/AZO da AZO mai tsabta suna gudanar da aiki sosai fiye da SnOx mai tsabta. KPFM ya nuna mafi daidaiton saman ƙarfin lantarki da ƙarancin lahani a kan fim ɗin perovskite na SnOx/AZO. Binciken sha na wucin gadi ya tabbatar da saurin cirewa tare da SnOx/AZO.
Layer ALD Yana Hana Lalacewa
Bayan sa'o'i 400 na tsufa a 85°C a ƙarƙashin haske, samfuran SnOx sun nuna ƙarfin sha na lead iodide a cikin UV-vis, ƙarfin diffraction na Pb⁰ na ƙarfe a cikin 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 Layer perovskite da kuma yaduwar I⁻ mai tsanani a cikin na'urorin SnOx, yayin da na'urorin SnOx/AZO ba su nuna wani bayyanannen yaduwar ion ba.
Bayan kwanaki 7 a 85% RH, fim ɗin da aka rufe da SnOx ya samar da rawaya δ lokaci, amma SnOx/AZO ya kasance baƙi. 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 da ƙyar ya canza.
Aikace-aikacen Samfur
Aiki da Kwanciyar 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. Matsakaicin halin yanzu na EQE ya kasance 21.62 mA/cm², sama da na'urar SnOx 20.92 mA/cm². Ƙarfin fitarwa mai daidaitacce ya kasance 23.12%. Makamashin Urbach ya zo a 13.11 meV, ƙasa da na'urar SnOx 16.38 meV.
Game da kwanciyar hankali, bayan sa'o'i 1100 na tsufa a cikin 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 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.
Aiki da Kwanciyar Tantanin Halitta Biyu
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 ba shi da tsari, kuma EDS ya nuna rarraba Zn daidai a cikin AZO.
Na'urar tandem mai nasara ta kai ingancin 33.25%, VOC 1.98 V, JSC 20.83 mA/cm², FF 80.71%, ba tare da kusan hysteresis ba. EQE ta nuna photocurrents na saman da kasan cell na 20.43 da 20.40 mA/cm², daidaitawa mai kyau. Ƙarfin fitarwa mai daidaitacce ya kai 32.38%.
Bayan sa'o'i 1000 na tsufa na zafi a 85°C, SnOx/AZO ya riƙe inganci sama da 90%, 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 electron kuma tana yanke tarin cajin fuska, wanda ke hana lalacewar fuska ta hanyar amsawa. A lokaci guda, bilayer mai yawa yana aiki azaman shingen ion da danshi mai tasiri, yana hana lalacewar azurfa ta iodide da kuma shigar Ag⁺ cikin perovskite. Fitar da electron mai sauri tare da toshe ion na jiki yana ba da tsarin "functional decoupling", don haka tasirin biyu suna ƙarfafa dorewar na'urar tare.
Wannan binciken yana amfani da all-ALD SnOx/AZO bilayer don hana lalacewar da ke haifar da mu'amala a cikin perovskite/silicon tandem cells. Bilayer din yana haɗa kyakkyawan daidaiton band na SnOx tare da babban conductivity da aikin shinge mai yawa na AZO, yana yanke tarin caji da hana yaduwar ion da shigar danshi. Na'urorin guda ɗaya sun kai ingancin 23.47%, 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 don gina perovskite/silicon tandem PV mai inganci da karko, kuma yana nuna hanya ta hakika zuwa ga sel masu inganci da dorewa.
Gwajin MPPT na perovskite composite, wanda aka gina a kusa da A+AA+ LED solar simulator a matsayin tushen haske na tsufa, yana ba da goyon baya mai karfi ga binciken perovskite solar cell. Saboda sel na perovskite suna da matukar damuwa ga haske da zafin jiki, maki mafi girman ikonsu yana canzawa akai-akai. Mai sarrafa MPPT yana bin diddigin kuma yana kulle wannan maki a lokaci guda, don haka tsarin yana fitar da mafi kyawun ikonsa koyaushe. Wannan yana kara yawan samar da makamashi kuma yana inganta karko da tattalin arzikin dukkan tsarin PV.
Maganar: Hana Halayen Mu'amala a cikin Perovskite/Silicon Tandem Solar Cells ta hanyar All-ALD SnOx/AZO Bilayer
Ra'ayin Ooitech
Abin da ya fi fito fili a nan shi ne ra'ayin "functional decoupling", wanda ya ba da damar wani siririn Layer guda ya kula da daidaita band, wani kuma ya kula da toshewa, maimakon tilasta wani fim na SnOx guda ya yi ayyukan biyu kuma ya rasa daya daga cikinsu. A bangaren samarwa, daidaiton tarin ALD a kan cikakken girman module shine inda sarrafa layi da metrology suke da muhimmanci, kuma shine irin cikakken bayanin tsari da muke damuwa da shi yayin gina layukan module. Idan kana son ganin yadda aikin kera perovskite da tandem module ke haduwa a filin masana'anta, tashar YouTube ta Ooitech (www.youtube.com/ooitech) tana da daraja a bi ta.
