Ka indasteri ea photovoltaic, perovskite e 'nile ea e-ba tlhokahalo e chesang lilemong tsa morao tjena.Lebaka leo ka lona e hlahileng e le "e ratoang" tšimong ea lisele tsa letsatsi ke ka lebaka la maemo a eona a ikhethang.Calcium titanium ore e na le lintho tse ngata tse babatsehang tsa photovoltaic, mokhoa o bonolo oa ho lokisetsa, le mefuta e mengata ea lihlahisoa tse tala le lintho tse ngata.Ho phaella moo, perovskite e ka boela ea sebelisoa ho limela tsa matla a fatše, lifofane, kaho, lisebelisoa tsa ho fehla matla a marang-rang le masimo a mang a mangata.
Ka la 21 Hlakubele, Ningde Times e ile ea etsa kopo ea patent ea "calcium titanite solar cell le mokhoa oa eona oa ho lokisa le sesebelisoa sa matla".Lilemong tsa morao tjena, ka tšehetso ea maano le mehato ea malapeng, indasteri ea ore ea calcium-titanium, e emetsoeng ke lisele tsa letsatsi tsa calcium-titanium ore, e tsoetse pele haholo.Joale perovskite ke eng?Joang indasteri ea perovskite?Ke liphephetso life tse ntseng li tobana le tsona?Moqolotsi oa litaba oa Science and Technology Daily o ile a buisana le litsebi tse amehang.
Perovskite ha se calcium kapa titanium.
Seo ho thoeng ke perovskites ha se calcium kapa titanium, empa ke lentsoe le tloaelehileng bakeng sa sehlopha sa "ceramic oxides" se nang le sebopeho se tšoanang sa kristale, se nang le mokhoa oa molek'hule ABX3.A e emetse "large radius cation", B bakeng sa "metal cation" le X bakeng sa "halogen anion".A e emetse "large radius cation", B e emetse "metal cation" mme X e emetse "halogen anion".Li-ion tsena tse tharo li ka bonts'a lintho tse ngata tse makatsang tsa 'mele ka tlhophiso ea likarolo tse fapaneng kapa ka ho lokisa sebaka se pakeng tsa tsona, ho kenyelletsa empa li sa felle feela ho insulation, ferroelectricity, antiferromagnetism, giant magnetic effect, joalo-joalo.
"Ho ea ka sebopeho sa mantlha sa thepa, li-perovskite li ka aroloa ka mekhahlelo e meraro: li-perovskite tse rarahaneng tsa metal oxide, li-organic hybrid perovskites le inorganic halogenated perovskites."Luo Jingshan, moprofesa oa Sekolo sa Boitsebiso ba Elektronike le Boenjiniere ba Optical Univesithing ea Nankai, o hlahisitse hore li-titanite tsa calcium tse sebelisoang hona joale ho photovoltaics hangata ke tse peli tsa morao-rao.
perovskite e ka sebelisoa mafapheng a mangata a kang limela tsa matla a lefats'e, sefofane, kaho, le lisebelisoa tsa ho fehla matla a motlakase.Har'a bona, tšimo ea photovoltaic ke sebaka se ka sehloohong sa kopo ea perovskite.Mehaho ea titanite ea calcium e qapiloe haholo ebile e na le ts'ebetso e ntle haholo ea photovoltaic, e leng tataiso e tummeng ea lipatlisiso tšimong ea photovoltaic lilemong tsa morao tjena.
Indasteri ea perovskite e ntse e eketseha, 'me likhoebo tsa malapeng li hlōlisana bakeng sa moralo.Ho tlalehoa hore likarolo tsa pele tsa 5,000 tsa li-module tsa calcium titanium ore tse rometsoeng ho tloha Hangzhou Fina Photoelectric Technology Co., Ltd;Renshuo Photovoltaic (Suzhou) Co., Ltd. e boetse e potlakisa kaho ea mohala o moholo ka ho fetisisa lefatšeng oa 150 MW oa calcium titanium ore laminated pilot;Kunshan GCL Photoelectric Materials Co. Ltd. Mohala oa tlhahiso ea mojule oa calcium-titanium ore photovoltaic oa 150 MW o phethiloe mme o kentsoe tšebetsong ka Tšitoe 2022, 'me boleng ba tlhahiso ea selemo le selemo bo ka fihla li-yuan tse limilione tse 300 kamora ho fihlela tlhahiso.
Calcium titanium ore e na le melemo e totobetseng indastering ea photovoltaic
Ka indasteri ea photovoltaic, perovskite e 'nile ea e-ba tlhokahalo e chesang lilemong tsa morao tjena.Lebaka leo ka lona e hlahileng e le "e ratoang" tšimong ea lisele tsa letsatsi ke ka lebaka la maemo a eona a ikhethang.
"Ntlha ea pele, perovskite e na le lisebelisoa tse ngata tse ntle tsa optoelectronic, tse kang lekhalo la lihlopha tse feto-fetohang, coefficient e phahameng ea ho monya, matla a tlaase a tlamang a exciton, ho tsamaea ka thepa e phahameng, mamello e phahameng ea bokooa, joalo-joalo;ea bobeli, mokhoa oa ho lokisetsa perovskite o bonolo 'me o ka finyella translucency, ultra-lightness, ultra-thinness, flexibility, joalo-joalo Qetellong, lihlahisoa tse tala tsa perovskite li fumaneha hohle ebile li ngata.Luo Jingshan o hlahisitsoe.'Me ho lokisoa ha perovskite ho boetse ho hloka bohloeki bo fokolang ba lisebelisoa tse tala.
Hona joale, tšimo ea PV e sebelisa palo e kholo ea lisele tsa letsatsi tse thehiloeng ka silicon, tse ka aroloa ka silicon ea monocrystalline, polycrystalline silicon, le lisele tsa letsatsi tsa amorphous silicon.Theoretical photoelectric conversion pole ea lisele tsa crystalline silicon ke 29.4%, 'me tikoloho ea hona joale ea laboratori e ka fihla boholo ba 26.7%, e leng haufi haholo le siling ea phetoho;hoa hlokomeleha esale pele hore phaello e fokolang ea ntlafatso ea theknoloji le eona e tla fetoha e nyenyane le e nyenyane.Ka lehlakoreng le leng, matla a phetoho ea photovoltaic ea lisele tsa perovskite e na le palo e phahameng ea theory ea 33%, 'me haeba lisele tse peli tsa perovskite li kenngoa holimo le fatše hammoho, katleho ea phetoho ea khopolo-taba e ka fihla ho 45%.
Ho phaella ho "katleho", ntlha e 'ngoe ea bohlokoa ke "litšenyehelo".Ka mohlala, lebaka leo ka lona litšenyehelo tsa moloko oa pele oa libeteri tse tšesaane tsa filimi li ke keng tsa theoha ke hore mehloli ea cadmium le gallium, e leng lintho tse sa tloaelehang lefatšeng, e nyenyane haholo, 'me ka lebaka leo, indasteri e ntlafala haholoanyane. ke hore, ha tlhokahalo e kholoanyane, theko ea tlhahiso e phahame, 'me ha e e-s'o ka e khona ho ba sehlahisoa se tloaelehileng.Lisebelisoa tse tala tsa perovskite li ajoa ka bongata lefatšeng, 'me theko e boetse e theko e tlaase haholo.
Ho feta moo, botenya ba tšepe ea calcium-titanium ore bakeng sa libeteri tsa calcium-titanium ore ke li-nanometer tse makholo a seng makae feela, hoo e ka bang 1/500th ea li-wafers tsa silicon, ho bolelang hore tlhoko ea thepa e nyane haholo.Ka mohlala, tlhokahalo ea hona joale ea lefats'e ea lisebelisoa tsa silicon bakeng sa lisele tsa silicon tsa crystalline ke lithane tse ka bang 500,000 ka selemo, 'me haeba kaofela ha tsona li nkeloa sebaka ke lisele tsa perovskite, ho tla hlokahala lithane tse ka bang 1,000 feela tsa perovskite.
Mabapi le litšenyehelo tsa tlhahiso, lisele tsa silicon tsa crystalline li hloka ho hloekisoa ha silicon ho 99.9999%, kahoo silicon e lokela ho futhumatsoa ho likhato tse 1400 tsa Celsius, e qhibilihe ka metsi, e huloa ka melamu e chitja le lilae, ebe e bokelloa ka liseleng, bonyane ka lifeme tse 'nè le tse peli. ho isa matsatsing a mararo lipakeng, le tšebeliso e kholo ea matla.Ka lehlakoreng le leng, bakeng sa tlhahiso ea lisele tsa perovskite, ho hlokahala feela ho sebelisa mokelikeli oa motheo oa perovskite ho substrate ebe o emela crystallization.Ts'ebetso eohle e kenyelletsa feela khalase, filimi e khomarelang, perovskite le lisebelisoa tsa lik'hemik'hale, 'me e ka phethoa fekthering e le' ngoe, 'me ts'ebetso eohle e nka metsotso e ka bang 45 feela.
"Lisele tsa letsatsi tse lokiselitsoeng ho tloha perovskite li na le katleho e ntle ea phetoho ea photoelectric, e fihlileng ho 25.7% mothating ona, 'me e ka nka sebaka sa lisele tsa letsatsi tse thehiloeng ka silicon nakong e tlang hore e be khoebo e ka sehloohong."Luo Jingshan o boletse.
Ho na le mathata a mararo a maholo a hlokang ho rarolloa ho khothaletsa kholo ea indasteri
Ho nts'etsopele ea indasteri ea chalcocite, batho ba ntse ba hloka ho rarolla mathata a 3, e leng botsitso ba nako e telele ba chalcocite, ho lokisetsa sebaka se seholo le chefo ea loto.
Ntlha ea pele, perovskite e amehile haholo ka tikoloho, 'me lintho tse kang mocheso, mongobo, leseli le mojaro oa potoloho li ka lebisa ho senyeha ha perovskite le ho fokotsa matla a lisele.Hona joale boholo ba li-modules tsa laboratori tsa perovskite ha li kopane le maemo a machaba a IEC 61215 bakeng sa lihlahisoa tsa photovoltaic, leha e le hore ha li fihlele lilemo tse 10-20 tsa bophelo ba lisele tsa letsatsi tsa silicon, kahoo litšenyehelo tsa perovskite li ntse li se na thuso tšimong e tloaelehileng ea photovoltaic.Ho phaella moo, mokhoa oa ho senyeha ha perovskite le lisebelisoa tsa oona o rarahane haholo, 'me ha ho na kutloisiso e hlakileng ea ts'ebetso tšimong, leha e le hore ha ho na tekanyo e kopanetsoeng ea tekanyo, e leng kotsi ho lipatlisiso tsa botsitso.
Taba e ’ngoe e khōlō ke mokhoa oa ho li lokisetsa ka tekanyo e khōlō.Hajoale, ha lithuto tsa ntlafatso ea lisebelisoa li etsoa ka laboratoring, sebaka sa leseli se sebetsang sa lisebelisoa tse sebelisoang hangata se tlase ho 1 cm2, mme ha ho tluoa sethaleng sa ts'ebeliso ea khoebo ea likarolo tse kholo, mekhoa ea ho lokisa laboratori e hloka ho ntlafatsoa. kapa ho nkeloa sebaka.Mekhoa e ka sehloohong e sebetsang hona joale bakeng sa ho lokisetsa lifilimi tse kholo tsa perovskite ke mokhoa oa tharollo le mokhoa oa vacuum evaporation.Mokhoa oa tharollo, mahloriso le karo-karolelano ea tharollo ea selelekela, mofuta oa solvent, le nako ea polokelo li na le tšusumetso e kholo ho boleng ba lifilimi tsa perovskite.Mokhoa oa Vacuum evaporation o lokisa boemo bo botle le ho laoleha ha lifilimi tsa perovskite, empa ho boetse ho le thata ho fumana kamano e ntle pakeng tsa li-precursors le substrates.Ho phaella moo, hobane lera la lipalangoang tsa tefiso ea sesebelisoa sa perovskite le lona le hloka ho lokisoa sebakeng se seholo, mohala oa tlhahiso o nang le deposition e tsoelang pele ea lera ka 'ngoe e hloka ho thehoa tlhahiso ea indasteri.Ka kakaretso, ts'ebetso ea ho lokisa libaka tse kholo tsa lifilimi tse tšesaane tsa perovskite e ntse e hloka ntlafatso e eketsehileng.
Qetellong, chefo ea loto le eona ke taba e tšoenyang.Nakong ea ts'ebetso ea botsofali ea lisebelisoa tsa morao-rao tse phahameng tsa perovskite, perovskite e tla senyeha ho hlahisa li-ion tsa mahala le li-monomers tse etellang pele, tse tla ba kotsi ho bophelo bo botle hang ha li kena 'meleng oa motho.
Luo Jingshan o lumela hore mathata a kang botsitso a ka rarolloa ka ho paka lisebelisoa."Haeba nakong e tlang, mathata ana a mabeli a rarolloa, ho boetse ho na le ts'ebetso ea ho itokisa ba hōlileng tsebong, e ka boela ea etsa lisebelisoa tsa perovskite ka khalase e khanyang kapa ea etsa ka holim'a mehaho ho finyella ho kopanya ha mohaho oa photovoltaic, kapa ho etsoa lisebelisoa tse phutholohang tse phutholohang bakeng sa sebaka sa sefofane le sepakapaka. masimo a mang, e le hore perovskite sepakapakeng ntle le metsi le oksijene tikoloho ho phetha karolo e phahameng. "Luo Jingshan o kholisehile ka bokamoso ba perovskite.
Nako ea poso: Apr-15-2023