1. Polū LED chip + melemele ʻōmaʻomaʻo phosphor, me ka polychrome phosphor derivative

ʻO ka ʻōmaʻomaʻo phosphor ʻōmaʻomaʻo melemele e komo i ke kukui uliuli o kekahiNā ʻāpana LEDe hana i ka photoluminescence, a me ka uliuli kukui mai ka LED chips transmits out of the phosphor layer and converges with the yellow green light emitted by the phosphor at like points in space, and the red green blue light is mixed to form white light; Ma kēia ala, ʻaʻole e ʻoi aku ka nui o ka waiwai o ka photoluminescence hoʻololi ʻana o ka phosphor, kekahi o ka pono quantum waho, ʻaʻole ma mua o 75%; ʻO ka helu kiʻekiʻe loa o ka māmā mai ka chip hiki ke hiki wale i kahi 70%. No laila, theoretically, ʻaʻole e ʻoi aku ka nui o ka luminous pono o ka polū keʻokeʻo keʻokeʻo LED ma mua o 340 Lm / W, a hiki i ka CREE i 303 Lm / W i kekahi mau makahiki i hala. Inā pololei nā hopena hōʻike, pono e hoʻolauleʻa.

2. ʻO ka ʻulaʻula ʻōmaʻomaʻo uliuli ʻekolu hui kala kumu RGB LED ʻano, me ka ʻano RGB W LED, etc

ʻO nā ʻekoluhoʻomāmānā diodes, R-LED (ʻulaʻula) + G-LED ('ōmaʻomaʻo) + B-LED (uliuli), ua hui pū ʻia e hana i ke kukui keʻokeʻo ma o ka hoʻohui pono ʻana i ke kukui ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli i hoʻokuʻu ʻia ma ke ākea. I mea e hoʻoulu ai i ke kukui keʻokeʻo luminous kiʻekiʻe ma kēia ʻano, ʻo ka mea mua, ʻo nā LED kala āpau, ʻoi aku nā kukui ʻōmaʻomaʻo, pono e lilo i kumu kukui maikaʻi, ʻo ia ka helu no kahi 69% o "ke kukui keʻokeʻo like". I kēia manawa, ʻoi aku ka kiʻekiʻe o ka māmā māmā o ka LED uliuli a me ka ʻulaʻula LED, me ka hana quantum kūloko ma mua o 90% a me 95% paʻa, akā ʻoi aku ka maikaʻi o ka quantum kūloko o ka LED ʻōmaʻomaʻo. Ua kapa ʻia kēia ʻano o ke kukui ʻōmaʻomaʻo haʻahaʻa o GaN e pili ana i ke kukui ʻōmaʻomaʻo. ʻO ke kumu nui ʻaʻole i loaʻa i ka LED ʻōmaʻomaʻo kāna mea epitaxial ponoʻī. He haʻahaʻa loa ka maikaʻi o nā mea hana phosphorus arsenic nitride series i loko o ka laulā chromatographic ʻōmaʻomaʻo melemele. Eia naʻe, hana ʻia ka LED ʻōmaʻomaʻo i ke kukui ʻulaʻula a i ʻole nā ​​​​mea epitaxial kukui uliuli. Ma lalo o ke kūlana haʻahaʻa haʻahaʻa o kēia manawa, no ka mea, ʻaʻohe phosphor hoʻololi nalowale, ʻoi aku ka maikaʻi o ka ʻōmaʻomaʻo LED ma mua o ke kukui polū + kukui ʻōmaʻomaʻo phosphor. Ua hōʻike ʻia ua hiki i kāna hana kukui i 291Lm/W ma lalo o ka 1mA o kēia manawa. Eia nō naʻe, ma lalo o ke kiʻekiʻe o kēia manawa, ʻoi aku ka nui o ka emi ʻana o ka mālamalama o ke kukui ʻōmaʻomaʻo e ka hopena Droop. Ke piʻi aʻe ka mānoanoa o kēia manawa, e emi koke ana ka pono luminous. Ma lalo o 350mA i kēia manawa, ʻo 108Lm/W ka pono o ka luminous, a ma lalo o ke kūlana 1A, e emi ana ka pono o ka luminous i 66Lm/W.

No ka hui III phosphides, ʻo ka hoʻokuʻu ʻana i ke kukui i ka hui ʻōmaʻomaʻo i lilo i kumu pilikia o ka ʻōnaehana waiwai. Ke hoʻololi nei i ka haku mele ʻana o AlInGaP i mea e hoʻopuka ai i ke kukui ʻōmaʻomaʻo ma kahi o ka ʻulaʻula, ʻalani a melemele paha - no ka lawa ʻole ʻana o ka mea lawe ma muli o ka haʻahaʻa haʻahaʻa o ka ikehu o ka ʻōnaehana mea, kahi e pale ai i ka hoʻohui hou ʻana o ka radiation.

I ka hoʻohālikelike, ʻoi aku ka paʻakikī o ka Group III nitrides e hoʻokō i ka hana kiʻekiʻe, akā ʻaʻole hiki ke hoʻokō ʻia ka paʻakikī. Ke hoʻonuiʻia ke kukui i ke kukui'ōmaʻomaʻo'ōmaʻomaʻo me kēia pūnaewele,ʻo nā meaʻelua e ho'ēmi ai i ka maikaʻi,ʻo ia ka maikaʻi quantum waho a me ka pono uila. ʻO ka emi ʻana o ka pono quantum waho mai ka ʻoiaʻiʻo ʻoiai ʻoi aku ka haʻahaʻa o ka ʻāʻī ʻōmaʻomaʻo, hoʻohana ka LED ʻōmaʻomaʻo i ka uila kiʻekiʻe mua o GaN, kahi e hōʻemi ai i ka helu hoʻololi mana. ʻO ka lua o ka hemahema ʻo ia ka ʻōmaʻomaʻoKe emi iho nei ka LEDme ka piʻi ʻana o ka nui o kēia manawa a paʻa ʻia e ka hopena droop. Hōʻike pū ʻia ka hopena droop i ka LED uliuli, akā ʻoi aku ka koʻikoʻi i ka LED ʻōmaʻomaʻo, e hopena i ka haʻahaʻa haʻahaʻa o ka hana maʻamau. Eia nō naʻe, he nui nā kumu no ka hopena droop, ʻaʻole wale ʻo Auger recombination, akā, dislocation hoʻi, overflow carrier a i ʻole leakage uila. Hoʻonui ʻia ka mea hope e ka volta kiʻekiʻe i loko o ke kahua uila.

No laila, ʻo nā ala e hoʻomaikaʻi ai i ka pono luminous o ka LED ʻōmaʻomaʻo: ma ka ʻaoʻao hoʻokahi, e aʻo pehea e hōʻemi ai i ka hopena Droop e hoʻomaikaʻi ai i ka pono luminous ma lalo o nā kūlana o nā mea epitaxial e loaʻa nei; Ma ka ʻaoʻao ʻē aʻe, hoʻohana ʻia ka LED polū a me ka phosphor ʻōmaʻomaʻo no ka hoʻololi ʻana i ka photoluminescence e hoʻokuʻu i ke kukui ʻōmaʻomaʻo. Hiki i kēia ala ke loaʻa i ke kukui ʻōmaʻomaʻo me ka maikaʻi luminous kiʻekiʻe, hiki ke hoʻokō i ka ʻoi aku ka maikaʻi o ka luminous ma mua o ke kukui keʻokeʻo o kēia manawa. No ke kukui ʻōmaʻomaʻo ʻole. ʻO ka emi ʻana o ka maʻemaʻe kala ma muli o kāna hoʻonui spectral ʻaʻole maikaʻi no ka hōʻike ʻana, akā ʻaʻohe pilikia no ka kukui maʻamau. Hiki ke loaʻa ka ʻōmaʻomaʻo luminous maikaʻi ma mua o 340 Lm / W, akā naʻe, ʻaʻole e ʻoi aku ke kukui keʻokeʻo i hui ʻia ma mua o 340 Lm / W; ʻO ke kolu, e hoʻomau i ka noiʻi a loaʻa i kāu mau mea epitaxial ponoʻī. Ma kēia ala wale nō e hiki ai i kahi ʻōlinolino o ka manaʻolana ma hope o ka loaʻa ʻana o nā kukui ʻōmaʻomaʻo ma mua o 340 Lm/w, ʻoi aku ka kiʻekiʻe o ke kukui keʻokeʻo i hui pū ʻia e ka ʻulaʻula, ka ʻōmaʻomaʻo a me ka uliuli ʻekolu mau LED waihoʻoluʻu mua ma mua o ka palena kūpono māmā o ka puʻupuʻu polū. LED keʻokeʻo o 340 Lm/W.

3. Ultraviolet LED chip + tri kala phosphor

ʻO ka hemahema koʻikoʻi o nā ʻano LED keʻokeʻo ʻelua ma luna nei, ʻo ka hāʻawi ʻole ʻana o ka luminosity a me ka chroma. ʻAʻole ʻike ʻia ke kukui UV i ka maka kanaka. No laila, hoʻopili ʻia ka kukui UV i hoʻokuʻu ʻia mai ka chip e ka tri color phosphor o ka papa hoʻopili, a laila hoʻohuli ʻia mai ka photoluminescence o ka phosphor i ke kukui keʻokeʻo a hoʻokuʻu ʻia i ka lewa. ʻO kēia kāna pono nui loa, e like me ke kukui fluorescent kuʻuna, ʻaʻohe ona kala kala ʻole. Eia nō naʻe, ʻaʻole hiki ke kiʻekiʻe ke kiʻekiʻe o ka mana o ke kukui uila ultraviolet ma mua o ke kumu kumu o ke kukui keʻokeʻo polū, waiho wale i ka waiwai o ke kukui keʻokeʻo RGB ʻano. Eia nō naʻe, ma ka hoʻomohala ʻana i nā phosphors tricolor pono kūpono no ka hoʻoulu ʻana i nā kukui UV hiki ke loaʻa i ke kukui keʻokeʻo ultraviolet me ka ʻoi aku ka maikaʻi o ke kukui like a ʻoi aku paha ma mua o nā LED keʻokeʻo ʻelua i ʻōlelo ʻia ma luna o kēia pae. ʻO ka kokoke loa o ka LED ultraviolet i ke kukui polū, ʻoi aku ka maikaʻi o ia, a ʻo ka LED keʻokeʻo me ka nalu waena a me nā laina ultraviolet hawewe pōkole ʻaʻole hiki ke hiki.