Njengoko sonke siyazi, amandla elanga ngowona mthombo wamandla okukhanya. Iiphaneli zeSilicon zinokuguqula ukukhanya kube ngumbane, kwaye iibhetri ze-tandem zelanga ze-lithium zinokwenza oku ngokufanelekileyo ngokufunxa amaza okukhanya okongeziweyo.

Akunjalo kuphela, abaphandi baye baqaphela ukuba usebenzisa ukucwangciswa kwee-double-series, yinkqubo entsha esebenzisa i-silicon yendabuko kunye nolunye uluhlu lwe-peroxide eyenziwe ngokuhlanganiswa “kochungechunge” lweenkqubo ezintsha, ezinokuqokelela amandla amaninzi kwaye bamba Ubuninzi bokuchithwa, kubonakaliswe kwaye kuhlakazeke ukukhanya okuvela emhlabeni (okuthiwa “i-albedo”) ukunyusa ngokubonakalayo uchungechunge lweeseli zelanga.

Ngomhla we-11 kaJanuwari, i-2021, i-International Cooperation Organisation, kubandakanywa nabaphandi abavela kwiYunivesithi yase-King Abdullah yeSayensi kunye neTekhnoloji (KAUST) kunye ne-UT School of Engineering) yapapasha inqaku elithi “Ukusebenza okuphezulu okuSekwe kwi-Band Gap Engineering” kwiphepha leNdalo yeNdalo. I-Peroxide/i-Double Monocrystalline Silicon Solar Cell” (inqaku le-Efficientbifacialmonolithicperovskite/Silicontandemsolarcellsviabandgapineering).

Eli phepha lichaza yonke inkqubo yeqela yokuyila izixhobo zeperoxide/silicon ukodlula imida yokusebenza eyamkelweyo ngoku yolungelelwaniso lothotho.

Amalungu eqela agqibezele olu phando kunye. Phakathi kwabo, uGqr Michele DeBastiani ubeke phambili ingcamango yophando kwaye wenza isixhobo kunye no-alessandro j. Mirabelli.

University of Toronto elektroniki kunye nobunjineli computer postdoctoral oogxa YiHou, Bin Chen kunye Anand S. Subbiah uphuhlise umsantsa peroxide band, ngelixa Erkan Aydin kunye Furkan H. Isikgor waphuhlisa tandem top uqhagamshelwano kunye noyilo.

Ukuqukunjelwa kolu phononongo kukuba i-monolithic peroxide / i-silicon tandem yeseli yelanga ephindwe kabini isebenzisa ukukhanya kwe-albedo kokusingqongileyo, kwaye ukusebenza kungcono kunokwecala elinye le-peroxide / i-silicon tandem yeseli yelanga. Iqela lophando lokuqala lichaze iziphumo zovavanyo lwangaphandle. Phantsi kokukhanya kwelanga okukodwa kwe-AM 1.5g, uguqulo lwamandla oluqinisekisiweyo olunamacala amabini lugqithise kwi-25%, kwaye ukuxinana kokuveliswa kwamandla kwakuphezulu njenge-26 mwcm-2.

Kwangaxeshanye, abaphandi baphonononga umsantsa peroxide band efunekayo ukuze uthelekiso olufanelekileyo lwangoku phantsi kokukhanyisa ezahlukeneyo lokwenyani kunye neemeko albedo, xa kuthelekiswa iimpawu ezi ntsika kabini emacaleni evezwe albedo ezahlukeneyo, kwaye unikeze uthelekiso phakathi kweziphumo ezimbini zokubala amandla. imveliso kwindawo eneemeko ezahlukeneyo zokusingqongileyo.

Ekugqibeleni, iqela lithelekise iindawo zovavanyo lwangaphandle ezinecala elinye kunye necala eliphindwe kabini leentambo ze-peroxidase / i-silicon ukubonisa ixabiso elongezelelweyo le-tandem duality kwiindawo ezinealbedo efanelekileyo.

Umzimba oyintloko weseli entsha ye-tandem yelanga yenziwe ngumaleko wesilicon kunye nomaleko weperoxide. Kwangaxeshanye, zidityaniswe nezinye iikhompawundi ezininzi. Unjingalwazi uStefanu DeWolf uthe. “Owona mceli mngeni mkhulu kukuntsonkotha kwesixhobo se-tandem. Kukho izinto ezili-14 ezibandakanyekayo, kwaye imathiriyeli nganye kufuneka iphuculwe ngokugqibeleleyo ukuze kuthathelwe ingqalelo impembelelo ye-albedo.

utshilo uGqr Michele DeBastiani, umbhali okhokelayo wokufunda. “Ngokusebenzisa i-albedo, ngoku sinokwenza imisinga ephezulu kakhulu kuneembumba zesiqhelo ze-bipolar ngaphandle kokunyuka kweendleko zokuvelisa.” Ababhali bolu phando baquka uNjingalwazi uTed Sargent kunye nomphandi we-postdoctoral uYiHou kwiSebe lezoMbane kunye nobuNjineli beKhompyutha kwiYunivesithi yaseToronto.

uye waqhuba uphando malunga nokubanakho ukuthatha ilanga elingathanga ngqo kwixesha elidlulileyo, kodwa akazange enze iimvavanyo zovavanyo. Ukongeza kwiYunivesithi yezobuNjineli kunye neTekhnoloji, abaphandi baseKing Abdullah University of Science and Technology (KAUST) baphinde basebenzisana nabasebenzisana neKarlsruhe Institute of Technology kunye neYunivesithi yaseBologna ukuxazulula isayensi efunekayo ukubandakanya ukukhanya kwelanga elingathanga ngqo kumandla okuvuna amandla. yeemodyuli zabo kunye nemingeni yobunjineli.

Emva koko, phantsi kweemeko zangaphandle, bavavanya iiseli zelanga ze-tandem ezinamacala aphindwe kabini kwaye baphumelela ukusebenza kakuhle ukodlula naziphi na iiphaneli zelanga ze-silicon.

“Iiseli ze-silicon zelanga ze-bifacial enye zonyusa ngokukhawuleza isabelo sazo kwintengiso ye-PHOTOVOLTAIC kuba zinokubonelela nge-20% yokuphuculwa kokusebenza okuhambelanayo. Ukusebenzisa le ndlela kwiperoxide/silane kunokusebenza ngakumbi kuneeseli zelanga zesilicon zemveli. Kwaye inokunciphisa iindleko zezinto ezingasetyenziswanga. ” UNjingalwazi uStefano DeWolf waqukumbela. UDeWolf kunye noogxa bakhe baphuhlise le teknoloji ngokusebenzisana namaqela aseCanada, eJamani nase-Italy.

Ekuqukunjelweni kwephepha, abaphandi bangqina ngokuvavanywa indlela yokusebenzisa isici esinamacala amabini ukuphucula ukusebenza kwayo yonke iperoxide/isilicon. Ngenxa yokusetyenziswa umsantsa emxinwa peroxide band, izakhiwo isixhobo kunye electrode transparent ngasemva bathembele albedo ukwandisa isizukulwana yangoku yeseli esezantsi kwaye kwangaxeshanye ukwandisa isizukulwana yangoku iseli phezulu peroxide.

Oku kuhambelana kuphunyeziwe kwiiperoxides kunye ne-gap band ye-1.59-1.62 eV. Xa kuthelekiswa nochungechunge lwe-peroxide / i-silicon yecala elinye, umxholo we-bromine ungowona umncinci, ngoko ukuzinza okunxulumene nokwahlulwa kwe-halide kuncitshiswe kakhulu. ingxaki. Iqela livavanye ukusebenza kwesakhiwo se-tandem esinecala eliphindwe kabini kwiimvavanyo zentsimi, kwaye liqikelele ukukhutshwa kwamandla kwi-double-side kunye ne-single-side-side tandem structures phantsi kweemeko zemozulu ezahlukeneyo.

Kuzo zombini iimeko, i-tandem ingcono kunesakhiwo esinecala elinye, esibonisa isithembiso sale teknoloji. Lo msebenzi ubonisa amandla eklasi entsha yeeseli zelanga eziphezulu ezinokusebenzisa ukusebenza okuphezulu kodwa iteknoloji ephantsi kweendleko zokuvala i-gap kunye nomqobo we-30mwcm-2PGD.

Ukusuka apha, uphuculo olongezelelweyo lokusebenza kwezixhobo kunye nokwandiswa kwesikali sobuchwephesha ngamanyathelo alandelayo anengqiqo ukusondeza le teknoloji kwimarike ye-photovoltaic.

UNjingalwazi uChristophe Ballif, umlawuli we-Photovoltaic Laboratory ye-Federal Institute of Technology eLausanne, eSwitzerland, akazange athathe inxaxheba kolu phando. Uthe. “Eli phepha libonelela ngobungqina bokuqala obucacileyo bokulinga isixhobo esinamacala amabini e-tandem. Uhlalutyo lobungakanani bokusebenza okuxelwe ngabaphandi kubaluleke kakhulu ekusekeni izixhobo ezizinzileyo ezifunekayo kule teknoloji ukungena kwimarike enkulu. ”