Sariya-Ka tiɲɛni, Silikoni kulɛrilaman min be se ka kuran lataga

Silikoni sugu kura min sɔrɔla, o ye semi-conducteur ye, Michigan kalansoba sɛgɛsɛgɛrikɛlaw ye-upending assumptions sɔrɔ ko minanw kilasi be insulation dɔrɔn lo kɛ.

Richard Laine, U-M ka kalanfa min be minanw lɔn ani ɛnzeniyɛri ani makromolɛkiliw lɔnni ani ɛnzeniyɛri karamɔgɔ ani min be kalan nin sɛbɛbaga ye.

Silikoni tuluw ni nɛgɛw-polisiloksanw ni silsesquioxanes-ye laada fɛnw ye minw be yɔrɔw latanga, o kɔrɔ ko u be se ka kuran wala funteni jigi. U ka ji-baarakɛcogo b’a to u be se ka kɛ nafaman ye biyɔmedisini minɛnw na, nɛgɛw la, nɛgɛw la ani fɛn wɛrɛw la.

O wagati la, fɛn minw be se ka yɛlɛma yɛlɛma, olu ka teli ka gwɛlɛya. Silikoni min be se ka yɛlɛma yɛlɛma, o be se ka Laine ka elekitoronikifɛnw yɛlɛmayɛlɛma ani silikoni min be sɔrɔ kulɛri sifa caaman na.

Molɛkiliw hakɛ la, silikoniw be kɛ ni kɔkolo ye min be yɛlɛmayɛlɛma silikɔni ni ɔnkisijɛni atɔmuw (Si-O-Si) la ani fɛnɲɛnamafagalanw (karibɔni-basi) kuluw minw nɔrɔnin be silikɔni na. Polimeri cakɛda 3D suguya caaman be bɔ n’u be ɲɔgɔn minɛna, o min be weele ko cross-linking, o min be fɛɛn farikolo cogoyaw yɛlɛma i n’a fɔ fanga wala yɛlɛmani.

Tuma min na u tun be cross-linking structures suguya caaman kalanna silikoni kɔnɔ, ɲininikɛlaw ye kuran yɛlɛmacogo lɔn kopolimɛri kɔnɔ, o min ye polimɛri cakɛda ye min kɔnɔ, yɔrɔ fila be segi ɲɔgɔn kan -cage-structured ani then linear silicones nin koo la.

Kunnafoni min be se ka sɔrɔ, o be bɔ elɛkitoroninw be se ka tagama cogo min na Si-O-Si nɔrɔnanw fɛ ni yɔrɔw ye minw be ɲɔgɔn kunmabɔ. Semi-conducteurs ka cogoya fila lo: dugukolo cogoya, min tɛ kuran lase, ani cogoya min be kuran lase, min b’a lase. O yɛlɛmani cogoya, min be weele fana ko yɛlɛmani cogoya, o be kɛ tuma min na ɛlɛkitoron dɔw be pan ka taga ɛlɛkitoron yɔrɔ wɛrɛ la, min be ɲɔgɔn minɛ minɛnw cɛma i n’a fɔ nɛgɛ.

Ka fara o kan, Si-O-Si nɔrɔli yɔrɔw t’a to o nɔrɔli be kɛ. Degere 110 , u be yɔrɔjan ka bɔ yɔrɔ tilennin dɔ la min be degere 180 bɔ. Nka silikoni kopolimɛri min kɔnɔ, o jɛnkulu ye min sɔrɔ, o jɛɛw daminɛna degere 140 la dugukolo cogoya la-ani u be yɛlɛma ka se degere 150 ma nisɔndiya cogoya la. O tun be se ka siraba dɔ dilan walisa kuran ka charge ka se ka don.

Laine y’a fɔ ko: “O b’a to ɲɔgɔndan dɔ be kɛ elɛkitoroninw ni ɲɔgɔn cɛ cogo dɔ la min ma lawuli nɔrɔnɔrɔ caaman na ani Si-O-Si nɔrɔnanw be o kopolimɛriw kɔnɔ.” "Ni jɔlɔkɔ janya ka jan, a ka nɔgɔ ɛlɛkitoroniw ma ka taga yɔrɔjanw na, o be fanga dɔgɔya min ka kan ka yeelen sama ani ka tila k'a bɔ ni fanga dɔgɔman ye."

Silikɔni kopolimɛriw ka tilancɛ-konduktɛri sifaw fana b’a to a ka ɲɛgɛnw be se ka yɛlɛma. Ɛlɛktɔrɔnw be pan dugukolo ni yɔrɔ minw be yɛlɛma yɛlɛma, u be fotonw wala yeelen misɛnw sama ani k’u bɔ. Yeelen min be bɔ, o be bɔ kopolimɛri ka cakɛda janya lo la, Laine ka jɛnkulu be se k’o min kɔlɔsi. Cakɛda janya min ka jan, o kɔrɔ ko pankurunw ka dɔgɔ ani fotonw ka fanga ka dɔgɔ, o min be silikoni kɛ ni ɲɛgɛn wuleman ye. Cakɛda surunw be pankurunw lo ɲini ka pan ka bɔ elɛkitoroninw na, o kama u be yeelen barikaman bɔ ka taga yɔrɔ min be yɔrɔ bulaman laban na.

Walisa k’a yira ko jɛnɲɔgɔnya min be jɔlɔkɔ janya ni yeelen minɛcogo n’a bɔli cɛ, sɛgɛsɛgɛrikɛlaw ye kopolimɛriw bɔ ɲɔgɔn na minw ka jɔlɔkɔ janya tɛ kelen ye ani k’u labɛn sɛgɛsɛgɛrikɛlanw kɔnɔ k’a ta janya la ka taga a bila surun na. Ka yeelen UV bɔ nɛgɛw kan, o be sankaba dafanin dɔ lawuli sabu u kelen kelen bɛɛ be yeelen minɛ ani k’a bɔ ni fanga sifa caaman ye.

O ɲɛgɛnw minw basiginin be kopolimɛriw ka jɔlɔkɔ janya kan, u ɲɔgɔn tɛ yen sabu fɔɔ ka na se bi ma, u tun b’a lɔn ko silikoniw be gwɛ wala u be gwɛ dɔrɔn sabu u ka yeelenbɔcogo b’a to u tɛ se ka yeelen caaman minɛ.

Zijing (Jackie) Zhang, U-M ka dɔgɔtɔrɔya kalanden min be minanw lɔnniya ani ɛnzeniyɛri la ani min ye kalan sɛbɛbaga ye, ale y’a fɔ ko: “An be minan dɔ ta min bɛɛ tun b’a miiri ko kuran t’a la ani k’a ɲɛnamaya kura di a ma-min be se ka fanga di kuran ma min be se ka yɛlɛma yɛlɛma.”