Cov kws tshawb fawb tsim 3-D cov qauv luam tawm nrog ua- hauv nano-wrinkles rau kev tswj hwm saum npoo
Wuhan, Tuam Tshoj - Pab pawg tshawb fawb ntawm Huazhong University of Science thiab Technology tau tsim cov laser tshiab-raws li 3D- luam tawm txoj hauv kev los tsim peb -dimensional micro- cov qauv uas nqa cov qauv nanoscale wrinkle ntawm lawv qhov chaw, qhib txoj kev tshiab rau siab -.
Nyob rau hauv txoj kev tshawb no, pab neeg no qhia txog ib tug "laser direct sib dhos" txoj kev uas siv ib femtosecond laser los tsim polymer micro-voxels uas spontaneously tsim nanowrinkles vim muaj kev ntxhov siab tsis sib haum thaum photopolymerisation.
Cov yam ntxwv tseem ceeb ntawm kev siv tshuab muaj xws li:
A ib zaug - khoom, ib - cov txheej txheem: Tag nrho cov microstructure-xws li nws cov wrinkles- yog tsim nyob rau hauv ib lub laser ib zaug- sau ntawv dhau, tsis tas yuav tsum tau cais templateing los yog ncej-wrinkling kauj ruam.
Kev daws teeb meem siab thiab geometric kev ywj pheej: Txoj kev ua rau cov neeg siv khoom tsim -tsim architectures hauv 3-D nrog cov txheej txheem wrinkle (xws li hierarchical lossis patterned wrinkles) thoob plaws qhov chaw.
Tswj wrinkle wavelength mus txog kaum ntawm nanometers: Cov kws sau ntawv qhia tias qhov wrinkle wavelengths tuaj yeem kho tau (hauv qab ~ 40 nm) los ntawm kev tswj cov laser thiab cov khoom tsis.
Kev siv dav: Raws li cov wrinkles tau tsim nyob rau hauv lub sij hawm luam ntawv, cov txiaj ntsig architectures tuaj yeem ua ke macro-puab tsim thiab nanoscale nto zoo nkauj nyob rau hauv ib kauj ruam- cog lus rau kev siv hauv optics, sensing, micro-fluidics, thiab cov khoom siv kho tshuab qhov chaw qhov chaw, lub teeb - teeb meem kev cuam tshuam lossis kev coj cwj pwm tsis zoo.
Pab neeg tshawb fawb tau qhia txog kev muaj peev xwm los ntawm kev luam ntawv micro-cib, kab sib chaws, thiab txawm tias cov duab kos duab (piv txwv li micro- teev cov cim ntawm lub tsev kawm ntawv) npog nrog nanowrinkles, ua pov thawj ob qho tib si cov txheej txheem nyuaj thiab kev tswj kom zoo nkauj.
Raws li cov kws sau ntawv, qhov kev tsim kho tshiab loj nyob hauv kev sib txuas cov khoom siv ntxiv ntawm micro-architectures nrog rau hauv -situ nanostructuring- zoo sib koom ua ke 3-D luam ntawv nrog nanoscale qauv hauv kev sib koom ua ke. Qhov no tuaj yeem ua kom yooj yim rau kev tsim cov chaw ua haujlwm, qhov twg ib txwm cais lithography lossis tus kheej-wrinkling cov kauj ruam yuav xav tau.
Tej zaum qhov cuam tshuam ntawm kev ua haujlwm suav nrog kev txhim kho kev ua haujlwm ntawm microdevices (piv txwv li los ntawm kev txhim kho qhov chaw saum npoo los yog txhim kho lub teeb tawg), kev ua haujlwm tau zoo hauv micro-robots lossis biomedical scaffolds (qhov chaw zoo nkauj cuam tshuam rau ntawm tes), thiab kev ywj pheej tsim tshiab hauv metamaterials lossis photonic architectures.
Cov kws sau ntawv xaus lus tias lawv lub tswv yim "muab cov txheej txheem thoob ntiaj teb rau kev tsim ua ze li ntawm nanowrinkled architectures" thiab "ua kom yooj yim rau lub tswv yim tshiab hauv micro / nano-additive manufacturing".
