ISayensi ye-UVLED i-UVLED inezi mpawu

I-UVLED, oko kukuthi, i-UV ukukhanya kwe-diode, luhlobo lwe-LED. Yi-chip ye-LED enamandla aphezulu kunye ne-high-power LED chip kunye nomlinganiselo othile we-200nm ukuya kwi-450nm. Imigaqo ephambili yeUVLED zezi ngongoma zilandelayo: 1. Umatshini wokukhupha we-UVLED: Isiphelo sombane weqhina le-PN senza umqobo othile onokubakho. Xa i-voltage ye-bias positive iyancipha, abaninzi abalayishi kwiindawo ze-P kunye ne-N basasazeka kwelinye iqela. Ngenxa yokuba izinga lokufuduka kwe-elektroniki likhulu kakhulu kunezinga lokufuduka kwe-acupoint yomoya, inani elikhulu le-elektroniki lisasazeka kwindawo ye-P, lenze i-injection ye-carrier encinci yendawo ye-P. Ezi electron zixutywe ukusuka emqolombeni kwixabiso, kwaye amandla afunyenwe ngexesha lokudibanisa akhululwa ngendlela yamandla okukhanya. Lo ngumgaqo we-PN knot glow. 2. Ukuphumelela kokukhutshwa kokukhanya kwe-UVLED: Ngokuqhelekileyo kuthiwa yi-quantum yangaphandle ye-quantum yecandelo, bubuchule bangaphakathi be-quantum yecandelo kunye nemveliso yokusebenza kakuhle kwecandelo. 3. Iimpawu ezibonakalayo ze-UVLED: I-UVLED ibonelela ngokukhanya okukhulu kwe-monochrome kunye ne-semi-width enkulu. Njengoko i-gap yamandla ye-semiconductor iyancipha kunye neqondo lokushisa, ubude be-wavelength obukhuphayo buyanda ngokunyuka kweqondo lokushisa kunye nokunyuka kweqondo lokushisa. 4. Iimpawu zesayensi ye-UVLED ye-thermal: Ngaphantsi kombane omncinci, ukunyuka kweqondo lokushisa kwe-LED akubonakali. Ukuba iqondo lobushushu lokusingqongileyo liphezulu, ubude obuphambili be-UVLED buya kuba bomvu, ukuqaqamba kuya kuncipha, kunye nokufana okukhanyayo kunye nokungaguquguquki kuya kuba kubi. 5. Ubomi be-UVLED: Umsebenzi wexesha elide we-UVLED uya kubangela ukuguga, ngakumbi kwii-UVLED zamandla aphezulu, ingxaki yokubola kokukhanya inzima kakhulu. Xa ulinganisa ubomi be-UVLED, akwanelanga ukusebenzisa umonakalo wesibane njengobomi be-UVLED. Kufuneka isetyenziswe ukucacisa ubomi be-LED kunye nepesenti ye-UVLED attenuation ekhulwini. Zininzi iimpawu ze-UVLED, kodwa isishwankathelo esiphambili zezi ngongoma zilandelayo: 1. Akukho nto i-solvent-greenhouse effect 2. Iluncedo kukhuseleko lokusingqongileyo 3. Umhlaba ogxile emsebenzini ongenangcoliseko 4. Imveliso ekhawulezayo 5.. Ukunyanga iqondo lobushushu kwigumbi 6.. Iimveliso zinentsebenzo eyodwa 7. Gcina amandla 8. Ukuhlamba ngokulula 9. Gcina isithuba 10. I-glaos ephezulu 11.... Izinto ezincinane zenkunkuma 12. Ukwahluka kwendlela, ukuguquguquka, ukutshintshwa kwemveliso ngokukhawuleza. Ngenxa yeempawu ezininzi kunye neempawu ze-UVLED, iye yabeka isiseko sokusetyenziswa kamva kokuqina kwe-UV.