E bipụtara ya na Ọgọst 9, 2024, na elekere 15:30 nke ụtụtụ EE Times Japan
Otu nnyocha sitere na Mahadum Hokkaido nke Japan ejikọla aka mepụta "transistor oxide thin-film" nke nwere mmegharị elektrọn nke 78cm2/V yana nkwụsi ike dị mma na Mahadum Teknụzụ Kochi. Ọ ga-ekwe omume ịnyagharị ihuenyo nke TV OLED 8K ọgbọ na-abịa.
A na-eji ihe mkpuchi kpuchie elu nke ihe mkpuchi dị gịrịgịrị nke na-arụ ọrụ, nke na-eme ka nkwụsi ike dịkwuo mma nke ukwuu.
N'ọnwa Ọgọstụ afọ 2024, otu ndị nyocha gụnyere Osote Prọfesọ Yusaku Kyo na Prọfesọ Hiromichi Ota nke Ụlọ Ọrụ Nnyocha maka Sayensị Elektrọnik, Mahadum Hokkaido, na mmekorita ya na Prọfesọ Mamoru Furuta nke Ụlọ Akwụkwọ Sayensị na Teknụzụ, Mahadum Teknụzụ Kochi, kwupụtara na ha emepụtala "transistor oxide think-film" nke nwere mmegharị elektrọn nke 78cm2/Vs yana nkwụsi ike dị mma. Ọ ga-ekwe omume ịnyagharị ihuenyo nke TV OLED 8K ọgbọ na-abịa.
TV OLED 4K dị ugbu a na-eji transistors oxide-IGZO thin-film (a-IGZO TFTs) akwọ ihuenyo. Njem eletrọn nke transistor a dị ihe dị ka 5 ruo 10 cm2/Vs. Agbanyeghị, iji chụpụ ihuenyo nke TV OLED 8K nke ọgbọ na-abịa, a chọrọ transistor thin-film oxide nwere ngagharị eletrọn nke 70 cm2/Vs ma ọ bụ karịa.
Osote Prọfesọ Mago na ndị otu ya mepụtara TFT nwere ngagharị elektrọn nke 140 cm2/Vs 2022, site na iji obere ihe nkiri nkeindium oxide (In2O3)maka oyi akwa na-arụ ọrụ. Agbanyeghị, e jighị ya mee ihe n'ụzọ bara uru n'ihi na nkwụsi ike ya (ntụkwasị obi) adịghị mma nke ukwuu n'ihi mmịpụta na mwepụ nke molekul gas n'ikuku.
N'oge a, otu nnyocha ahụ kpebiri iji ihe mkpuchi nchebe kpuchie elu nke obere oyi akwa na-arụ ọrụ nke ọma iji gbochie gas ịbanye n'ikuku. Nsonaazụ nnwale ahụ gosiri na TFT nwere ihe mkpuchi nchebe nkeyttrium oxidenaerbium oxidegosiri nnukwu nkwụsi ike. Ọzọkwa, ngagharị elektrọn ahụ bụ 78 cm2/V, njirimara ya agbanweghịkwa ọbụlagodi mgbe etinyere voltaji nke ±20V ruo awa 1.5, na-adịgide adịgide.
N'aka nke ọzọ, nkwụsi ike emeghị ka ọ ka mma na TFT ndị jiri hafnium oxide ma ọ bụaluminom oxidedị ka ihe nkiri nchebe. Mgbe e ji igwe elektrọn microscope hụ nhazi atọm ahụ, achọpụtara naindium oxide nayttrium oxide e jikọtara nke ọma na ọkwa atọm (mmụba heteroepitaxial). N'ụzọ dị iche, a kwadoro na na TFT ndị nkwụsi ike ha adịchaghị mma, njikọ dị n'etiti indium oxide na ihe nkiri nchebe ahụ adịghị mma.