KR100993692B1 - 옥시질화물 형광체 및 그 제조방법 및 그 옥시질화물 형광체를 이용한 발광장치 - Google Patents
옥시질화물 형광체 및 그 제조방법 및 그 옥시질화물 형광체를 이용한 발광장치 Download PDFInfo
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- KR100993692B1 KR100993692B1 KR20057006594A KR20057006594A KR100993692B1 KR 100993692 B1 KR100993692 B1 KR 100993692B1 KR 20057006594 A KR20057006594 A KR 20057006594A KR 20057006594 A KR20057006594 A KR 20057006594A KR 100993692 B1 KR100993692 B1 KR 100993692B1
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Abstract
Description
|
Ex=400nm | |||
색조 x | 색조 y | 피크 파장(nm) | 입경(㎛) | |
실시예 1 | 0.434 | 0.543 | 561 | 3.5 |
실시예 2 | 0.433 | 0.543 | 561 | 4.0 |
실시예 3 | 0.349 | 0.608 | 539 | 4.0 |
실시예 4 | 0.352 | 0.604 | 539 | 3.5 |
실시예 5 | 0.182 | 0.55 | 509 | 3.5 |
|
Ex=460nm | ||
색조 x | 색조 y | 피크 파장(nm) | |
실시예 1 | 0.437 | 0.545 | 564 |
실시예 2 | 0.434 | 0.546 | 564 |
실시예 3 | 0.347 | 0.616 | 540 |
실시예 4 | 0.351 | 0.614 | 540 |
실시예 5 | 0.214 | 0.623 | 510 |
Ex=400nm 여기 | ||||||
|
Sr/Ca 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 6 | 0/10 | 561 | 0.434 | 0.543 | 100.0 | 100.0 |
실시예 7 | 3/7 | 543 | 0.388 | 0.570 | 111.0 | 106.3 |
실시예 8 | 5/5 | 546 | 0.375 | 0.579 | 135.9 | 128.6 |
실시예 9 | 7/3 | 544 | 0.372 | 0.593 | 148.0 | 131.8 |
실시예 10 | 10/0 | 539 | 0.349 | 0.608 | 145.8 | 127.3 |
Ex=460nm 여기 | ||||||
|
Sr/Ca 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 6 | 0/10 | 564 | 0.437 | 0.545 | 100.0 | 100.0 |
실시예 7 | 3/7 | 549 | 0.391 | 0.578 | 109.4 | 103.1 |
실시예 8 | 5/5 | 545 | 0.378 | 0.588 | 125.4 | 116.9 |
실시예 9 | 7/3 | 545 | 0.371 | 0.600 | 162.8 | 142.7 |
실시예 10 | 10/0 | 540 | 0.347 | 0.616 | 138.8 | 119.2 |
Ex=400nm 여기 | ||||||
|
Sr/Ca 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 11 | 6/4 | 542 | 0.366 | 0.593 | 124.4 | 128.1 |
실시예 12 | 7/3 | 541 | 0.366 | 0.595 | 133.3 | 135.8 |
실시예 13 | 8/2 | 542 | 0.363 | 0.599 | 142.0 | 143.4 |
실시예 14 | 9/1 | 540 | 0.353 | 0.605 | 122.7 | 123.2 |
실시예 15 | 10/0 | 540 | 0.342 | 0.611 | 100.0 | 100.0 |
Ex=460nm 여기 | ||||||
|
Sr/Ca 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 11 | 6/4 | 542 | 0.365 | 0.603 | 134.5 | 137.8 |
실시예 12 | 7/3 | 542 | 0.364 | 0.605 | 148.5 | 151.1 |
실시예 13 | 8/2 | 542 | 0.360 | 0.609 | 156.8 | 158.4 |
실시예 14 | 9/1 | 541 | 0.351 | 0.615 | 125.9 | 126.8 |
실시예 15 | 10/0 | 539 | 0.339 | 0.622 | 100.0 | 100.0 |
Ex=400nm 여기 | ||||||
|
Sr/Ba 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 10 | 10/0 | 539 | 0.349 | 0.608 | 100.0 | 100.0 |
실시예 16 | 8/2 | 549 | 0.388 | 0.581 | 84.3 | 86.6 |
실싱예 17 | 6/4 | 556 | 0.404 | 0.556 | 77.5 | 83.2 |
실시예 18 | 4/6 | 553 | 0.411 | 0.552 | 36.1 | 40.9 |
실시예 19 | 2/8 | 524 | 0.269 | 0.595 | 19.9 | 22.5 |
실시예 20 | 0/10 | 496 | 0.142 | 0.464 | 25.9 | 45.8 |
Ex=460nm 여기 | ||||||
|
Sr/Ba 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 10 | 10/0 | 540 | 0.347 | 0.616 | 100.0 | 100.0 |
실시예 16 | 8/2 | 548 | 0.386 | 0.590 | 95.8 | 97.8 |
실시예 17 | 6/4 | 558 | 0.408 | 0.571 | 87.6 | 92.7 |
실시예 18 | 4/6 | 558 | 0.417 | 0.559 | 47.4 | 53.5 |
실시예 19 | 2/8 | 527 | 0.293 | 0.621 | 13.6 | 15.2 |
실시예 20 | 0/10 | 497 | 0.120 | 0.532 | 37.8 | 64.2 |
Ex=400nm 여기 | ||||||
|
Ca/Ba 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 21 | 8/2 | 570 | 0.456 | 0.502 | 100.0 | 100.0 |
실시예 22 | 6/4 | 593 | 0.508 | 0.462 | 54.5 | 63.2 |
실시예 23 | 4/6 | 542 | 0.353 | 0.425 | 42.6 | 52.1 |
실시예 24 | 2/8 | 493 | 0.254 | 0.389 | 56.4 | 69.2 |
Ex=460nm 여기 | ||||||
|
Ca/Ba 몰비 |
발광 피크 파장 (nm) |
색조 x |
색조 y |
발광 휘도 (%) |
양자 효율 (%) |
실시예 21 | 8/2 | 582 | 0.480 | 0.504 | 100.0 | 100.0 |
실시예 22 | 6/4 | 586 | 0.511 | 0.476 | 70.7 | 79.5 |
실시예 23 | 4/6 | 590 | 0.502 | 0.471 | 24.1 | 29.9 |
실시예 24 | 2/8 | 492 | 0.343 | 0.474 | 7.8 | 12.8 |
전류 If(mA) |
전압 Vf(V) |
방사분석 Radiometric(mW) |
광도 측정 Photometric(Im) |
피크파장 Peak(nm) |
|
발광장치 | 20 | 3.4 | 6.2 | 1.84 | 464 |
색조 x |
색조 y |
색온도 Tcp(K) |
평균 연색성 Ra |
램프 효율 (Im/W) |
0.356 | 0.368 | 4690 | 82.2 | 27.1 |
Ex=400nm | ||||||
Eu의 배합비x |
색조 x | 색조 y | 발광 휘도 Y(%) |
에너지 효율 E(%) | 양자 효율 Q(%) |
|
실시예 31 | 0.01 | 0.333 | 0.614 | 81.0 | 81.7 | 81.0 |
실시예 32 | 0.015 | 0.340 | 0.612 | 87.2 | 87.8 | 87.3 |
실시예 33 | 0.02 | 0.341 | 0.612 | 95.1 | 95.5 | 94.9 |
실시예 34 | 0.025 | 0.345 | 0.609 | 97.3 | 97.5 | 96.9 |
실시예 35 | 0.03 | 0.349 | 0.608 | 97.7 | 98.1 | 97.9 |
실시예 36 | 0.035 | 0.356 | 0.604 | 100.0 | 100.0 | 100.0 |
실시예 37 | 0.04 | 0.356 | 0.604 | 97.9 | 98.4 | 98.5 |
실시예 38 | 0.045 | 0.363 | 0.600 | 97.4 | 97.7 | 97.9 |
실시예 39 | 0.05 | 0.367 | 0.598 | 95.4 | 95.8 | 96.2 |
실시예 40 | 0.07 | 0.378 | 0.590 | 89.0 | 90.1 | 91.2 |
실시예 41 | 0.08 | 0.387 | 0.584 | 89.6 | 91.1 | 92.4 |
실시예 42 | 0.1 | 0.394 | 0.579 | 87.3 | 89.5 | 91.4 |
실시예 43 | 0.12 | 0.405 | 0.571 | 85.5 | 88.1 | 90.4 |
실시예 44 | 0.14 | 0.416 | 0.562 | 84.8 | 88.8 | 91.5 |
실시예 45 | 0.18 | 0.422 | 0.558 | 84.8 | 89.5 | 92.4 |
실시예 46 | 0.18 | 0.425 | 0.556 | 79.9 | 84.3 | 87.0 |
실시예 47 | 0.2 | 0.430 | 0.552 | 72.5 | 76.5 | 79.5 |
실시예 48 | 0.22 | 0.438 | 0.546 | 71.7 | 76.3 | 79.5 |
실시예 49 | 0.24 | 0.442 | 0.543 | 68.8 | 73.7 | 77.0 |
실시예 50 | 0.26 | 0.446 | 0.539 | 61.1 | 66.2 | 69.2 |
실시예 51 | 0.28 | 0.450 | 0.536 | 57.7 | 62.9 | 66.1 |
실시예 52 | 0.3 | 0.449 | 0.537 | 48.3 | 52.9 | 55.4 |
실시예 53 | 0.4 | 0.462 | 0.526 | 38.6 | 43.4 | 45.9 |
실시예 54 | 0.5 | 0.471 | 0.519 | 31.0 | 35.7 | 38.0 |
실시예 55 | 0.6 | 0.476 | 0.514 | 23.0 | 26.9 | 28.7 |
실시예 56 | 0.7 | 0.482 | 0.508 | 16.6 | 20.2 | 21.8 |
Ex=460nm | ||||||
Eu의 배합비x |
색조 x | 색조 y | 발광 휘도 Y(%) |
에너지 효율 E(%) | 양자 효율 Q(%) |
|
실시예 31 | 0.01 | 0.334 | 0.623 | 59.6 | 57.4 | 55.0 |
실시예 32 | 0.015 | 0.339 | 0.620 | 67.0 | 64.6 | 62.2 |
실시예 33 | 0.02 | 0.340 | 0.621 | 81.5 | 78.0 | 75.0 |
실시예 34 | 0.025 | 0.343 | 0.618 | 83.2 | 79.8 | 77.0 |
실시예 35 | 0.03 | 0.347 | 0.616 | 84.3 | 81.0 | 78.1 |
실시예 36 | 0.035 | 0.352 | 0.614 | 94.1 | 89.8 | 86.7 |
실시예 37 | 0.04 | 0.354 | 0.612 | 91.2 | 87.4 | 84.5 |
실시예 38 | 0.045 | 0.358 | 0.610 | 96.3 | 92.2 | 89.2 |
실시예 39 | 0.05 | 0.363 | 0.607 | 96.6 | 92.7 | 89.9 |
실시예 40 | 0.07 | 0.375 | 0.597 | 97.1 | 94.0 | 92.0 |
실시예 41 | 0.08 | 0.380 | 0.593 | 97.7 | 95.0 | 93.0 |
실시예 42 | 0.1 | 0.390 | 0.586 | 97.4 | 95.4 | 94.2 |
실시예 43 | 0.12 | 0.400 | 0.578 | 100.0 | 98.5 | 97.9 |
실시예 44 | 0.14 | 0.408 | 0.571 | 99.6 | 99.1 | 98.7 |
실시예 45 | 0.18 | 0.414 | 0.566 | 99.4 | 100.0 | 100.0 |
실시예 46 | 0.18 | 0.417 | 0.564 | 95.2 | 95.9 | 96.0 |
실시예 47 | 0.2 | 0.424 | 0.559 | 89.3 | 90.2 | 90.8 |
실시예 48 | 0.22 | 0.430 | 0.555 | 91.5 | 93.4 | 94.2 |
실시예 49 | 0.24 | 0.434 | 0.551 | 87.0 | 89.1 | 90.1 |
실시예 50 | 0.26 | 0.438 | 0.547 | 78.2 | 81.0 | 82.1 |
실시예 51 | 0.28 | 0.441 | 0.545 | 73.9 | 77.0 | 78.3 |
실시예 52 | 0.3 | 0.441 | 0.545 | 61.4 | 63.6 | 64.6 |
실시예 53 | 0.4 | 0.453 | 0.535 | 53.3 | 56.3 | 57.7 |
실시예 54 | 0.5 | 0.460 | 0.529 | 43.7 | 46.9 | 48.4 |
실시예 55 | 0.6 | 0.466 | 0.524 | 33.6 | 36.6 | 37.8 |
실시예 56 | 0.7 | 0.471 | 0.518 | 23.4 | 26.5 | 27.6 |
Ex=400nm | ||||
Eu의 배합비 x | 발광 피크 (nm) | 색조 x | 색조 y | |
실시예 57 | 0.01 | 558 | 0.442 | 0.549 |
실시예 58 | 0.02 | 559 | 0.428 | 0.546 |
실시예 59 | 0.03 | 559 | 0.433 | 0.543 |
실시예 60 | 0.06 | 565 | 0.444 | 0.536 |
실시예 61 | 0.09 | 566 | 0.451 | 0.530 |
실시예 62 | 0.12 | 564 | 0.456 | 0.526 |
실시예 63 | 0.15 | 566 | 0.460 | 0.524 |
실시예 64 | 0.2 | 567 | 0.464 | 0.522 |
실시예 65 | 0.3 | 567 | 0.473 | 0.516 |
실시예 66 | 0.4 | 570 | 0.485 | 0.506 |
실시예 67 | 0.5 | 580 | 0.499 | 0.494 |
실시예 68 | 0.6 | 572 | 0.502 | 0.492 |
실시예 69 | 0.7 | 574 | 0.500 | 0.494 |
실시예 70 | 0.8 | 572 | 0.497 | 0.496 |
Eu의 배합비 x |
피크 강도 () | 발광 휘도 Y(%) | 에너지 효율 E(%) | 양자 효율 Q(%) | |
실시예 57 | 0.01 | 99.3 | 99.4 | 98.7 | 98.5 |
실시예 58 | 0.02 | 100.0 | 100.0 | 100.0 | 100.0 |
실시예 59 | 0.03 | 94.3 | 94.1 | 94.6 | 95.0 |
실시예 60 | 0.06 | 76.8 | 76.5 | 78.7 | 79.6 |
실시예 61 | 0.09 | 70.0 | 69.5 | 72.7 | 74.1 |
실시예 62 | 0.12 | 73.1 | 72.7 | 77.2 | 78.8 |
실시예 63 | 0.15 | 74.0 | 72.9 | 77.2 | 79.0 |
실시예 64 | 0.2 | 79.2 | 77.1 | 81.7 | 83.7 |
실시예 65 | 0.3 | 80.2 | 76.6 | 82.0 | 84.3 |
실시예 66 | 0.4 | 71.3 | 67.8 | 76.0 | 79.0 |
실시예 67 | 0.5 | 69.4 | 65.4 | 76.2 | 79.9 |
실시예 68 | 0.6 | 48.7 | 45.1 | 51.7 | 53.9 |
실시예 69 | 0.7 | 49.4 | 45.8 | 51.9 | 54.1 |
실시예 70 | 0.8 | 28.7 | 26.9 | 30.2 | 31.4 |
Ex = 40nm | |||||
Eu의 배합비x |
발광 피크 (nm) |
색조 x | 색조 y | 피크 강도 () |
|
실시예 71 | 0.01 | 495 | 0.090 | 0.458 | 100.3 |
실시예 72 | 0.02 | 496 | 0.101 | 0.485 | 100.0 |
실시예 73 | 0.03 | 497 | 0.116 | 0.507 | 90.1 |
실시예 74 | 0.04 | 498 | 0.113 | 0.504 | 89.2 |
실시예 75 | 0.05 | 499 | 0.132 | 0.521 | 83.6 |
실시예 76 | 0.1 | 498 | 0.247 | 0.477 | 22.5 |
실시예 77 | 0.15 | 518 | 0.289 | 0.556 | 8.4 |
실시예 78 | 0.2 | 531 | 0.317 | 0.599 | 5.7 |
Eu의 배합비x |
발광 휘도 Y(%) |
에너지 효율 E(%) | 양자 효율 Q(%) |
|
실시예 71 | 0.01 | 90.8 | 96.6 | 96.0 |
실시예 72 | 0.02 | 100.0 | 100.0 | 100.0 |
실시예 73 | 0.03 | 102.3 | 96.0 | 96.5 |
실시예 74 | 0.04 | 95.7 | 92.1 | 92.6 |
실시예 75 | 0.05 | 102.9 | 92.9 | 94.1 |
실시예 76 | 0.1 | 54.4 | 42.3 | 45.0 |
실시예 77 | 0.15 | 40.3 | 23.7 | 25.5 |
실시예 78 | 0.2 | 27.7 | 14.2 | 15.3 |
Ex = 460nm | |||
Eu의 배합비x |
발광 피크 (nm) |
피크 강도 () |
|
실시예 71 | 0.01 | 495 | 95.2 |
실시예 72 | 0.02 | 496 | 100.0 |
실시예 73 | 0.03 | 498 | 94.2 |
실시예 74 | 0.04 | 498 | 96.7 |
실시예 75 | 0.05 | 499 | 93.3 |
실시예 76 | 0.1 | 500 | 28.2 |
실시예 77 | 0.15 | 504 | 9.1 |
실시예 78 | 0.2 | 536 | 4.0 |
|
전류 If(mA) |
전압 Vf(V) |
방사 분석 Radiometric(mW) |
광도 측정 Photometric(Im) |
피크 파장 Peak(nm) |
발광장치 | 20 | 3.4 | 6.2 | 1.84 | 464 |
색조 x |
색조 y |
색온도 Tcp(K) |
평균 연색성 Ra |
램프 효율 (Im/W) |
0.356 | 0.368 | 4690 | 82.2 | 27.1 |
|
Eu 농도 (mol) |
색조 x |
색조 y |
발광 휘도 (%) | 양자 효율 (%) |
발광 피크 파장 (nm) |
실시예 83 | 0.03 | 0.106 | 0.471 | 100.0 | 100.0 | 496 |
실시예 84 | 0.05 | 0.121 | 0.481 | 85.5 | 83.9 | 498 |
실시예 85 | 0.10 | 0.247 | 0.477 | 45.2 | 40.1 | 500 |
실시예 86 | 0.15 | 0.289 | 0.556 | 33.4 | 22.8 | 504 |
실시예 87 | 0.20 | 0.317 | 0.599 | 23.0 | 13.7 | 536 |
온도 (℃) |
발광 휘도 (%) |
양자 효율 (%) |
25 | 100.0 | 100.0 |
50 | 97.0 | 97.4 |
100 | 88.8 | 90.2 |
150 | 79.2 | 81.7 |
200 | 64.7 | 68.2 |
발광 특성 (Ex=400nm) |
||||
색조 x |
색조 y |
색온도 (K) |
시감도 효율 (%) | |
비교예 1의 발광 장치 |
0.356 | 0.371 | 4693 | 100 |
실시예 88의 발광 장치 |
0.363 | 0.365 | 4449 | 81.5 |
평균 연색평가수 | 특수 연색평가수 |
|||||||
Ra | R1 | R2 | R3 | R4 | R5 | R6 | R7 | |
비교예 1의 발광 장치 | 76.0 | 74.7 | 90.9 | 92.8 | 60.2 | 69.9 | 82.0 | 78.9 |
실시예 88의 발광 장치 | 88.2 | 94.6 | 89.3 | 84.6 | 85.9 | 92.0 | 86.2 | 84.8 |
특수 연색평가수 | ||||||||
R8 | R9 | R10 | R11 | R12 | R13 | R14 | R15 | |
비교예 1의 발광 장치 | 58.3 | -1.9 | 71.8 | 52.2 | 41.9 | 79.8 | 96.4 | 70.1 |
실시예 88의 발광 장치 | 88.1 | 96.1 | 75.7 | 89.9 | 75.3 | 92.4 | 91.3 | 92.4 |
발광 특성 (Ex=460nm) |
||||
색조 x |
색조 y |
색온도 (K) |
시감도 효율 (%) |
|
비교예 2의 발광 장치 |
0.356 | 0.371 | 4693 | 100 |
실시예 89의 발광 장치 | 0.352 | 0.358 | 4773 | 86.1 |
실시예 90의 발광 장치 | 0.356 | 0.360 | 4643 | 81.8 |
평균 연색 평가수 |
특수 연색평가수 | |||||||
Ra | R1 | R2 | R3 | R4 | R5 | R6 | R7 | |
비교예 2의 발광 장치 |
76.0 | 74.7 | 90.9 | 92.8 | 60.2 | 69.9 | 82.0 | 78.9 |
실시예 89의 발광 장치 | 84.5 | 93.9 | 92.3 | 85.2 | 72.4 | 86.5 | 91.3 | 77.5 |
실시예 90의 발광 장치 | 83.1 | 93.5 | 86.0 | 79.9 | 96.0 | 88.0 | 83.2 | 96.6 |
특수 연색평가수 |
||||||||
R8 | R9 | R10 | R11 | R12 | R13 | R14 | R15 | |
비교예 2의 발광 장치 | 58.3 | -1.9 | 71.8 | 52.2 | 41.9 | 79.8 | 96.4 | 70.1 |
실시예 89의 발광 장치 | 77.1 | 70.7 | 87.0 | 73.8 | 63.1 | 97.9 | 92.4 | 88.0 |
실시예 90의 발광 장치 | 81.5 | 94.1 | 70.5 | 81.3 | 65.0 | 90.8 | 89.2 | 88.3 |
발광 특성 (Ex=457nm) |
|||||||||
전류 If(mA) |
전압 Vf(V) |
방사 분석 (mW) |
휘도 (광속) (Im) |
발광 피크 파장 (nm) | 색조 x |
색조 y |
색온도 (K) |
램프 효율 (Im/W) |
|
실시예 91의 발광 장치 | 20 | 3.38 | 6.3 | 1.69 | 453 | 0.334 | 0.340 | 5443 | 25.0 |
평균 연색 평가수 |
특수 연색평가수 | |||||||
Ra | R1 | R2 | R3 | R4 | R5 | R6 | R7 | |
실시예 91의 발광 장치 | 92.7 | 96.6 | 94.8 | 90.5 | 93.8 | 95.7 | 91.6 | 89.8 |
특수 연색평가수 | |||||||
R8 | R9 | R10 | R11 | R12 | R13 | R14 | |
실시예 91의 발광 장치 | 89.0 | 83.0 | 88.7 | 96.4 | 81.0 | 96.8 | 94.4 |
발광 특성 (Ex=463nm) | |||||||||
전류 If(mA) |
전압 Vf(V) |
방사 분석 (mW) |
휘도 (광속) (Im) |
발광 피크 파장 (nm) |
색조 x |
색조 y |
색온도 (K) |
램프 효율 (Im/W) |
|
실시예 92의 발광 장치 | 20 | 3.28 | 5.4 | 1.397 | 460 | 0.327 | 0.334 | 5751 | 21.3 |
평균 연색 평가수 |
특수 연색평가수 | |||||||
Ra | R1 | R2 | R3 | R4 | R5 | R6 | R7 | |
실시예 92의 발광 장치 | 84.9 | 90.9 | 86.3 | 81.6 | 83.2 | 88.1 | 82.2 | 81.4 |
특수 연색평가수 | |||||||
R8 | R9 | R10 | R11 | R12 | R13 | R14 | |
실시예 92의 발광 장치 | 85.8 | 91.0 | 69.9 | 88.0 | 70.7 | 88.9 | 89.6 |
Claims (48)
- 사방정계의 결정을 갖는 일반식 SrxCa1-xSi2O2N2:Eu(0.3≤x≤0.7)로 표시되며, CaSi2O2N2:Eu보다도 발광 피크 파장이 단파장인 것을 특징으로 하는 옥시질화물 형광체.
- 사방정계의 결정을 갖는 일반식 CaxBa1-xSi2O2N2:Eu(0.2≤x≤0.4)로 표시되는 것을 특징으로 하는 옥시질화물 형광체.
- 제1항 또는 제2항에 있어서, 상기 옥시질화물 형광체는 490 nm 이하에 발광 피크 파장을 갖는 여기광원으로부터의 광에 의해 여기되어, 상기 발광 피크 파장보다도 장파장측에 발광 피크 파장을 갖는 것을 특징으로 하는 옥시질화물 형광체.
- 제1항 또는 제2항에 있어서, 상기 옥시질화물 형광체는 청록색에서부터 황적색 영역에 발광 피크 파장을 갖는 것을 특징으로 하는 옥시질화물 형광체.
- 제1항 또는 제2항에 있어서, 상기 옥시질화물 형광체는 500 nm보다도 370 nm 쪽이 높은 강도를 갖는 여기 스펙트럼을 가지고 있는 것을 특징으로 하는 옥시질화물 형광체.
- L의 질화물(L은 Mg, Ca, Sr, Ba로 이루어지는 군으로부터 선택되는 적어도 1종 이상인 제II족 원소이다)과, Si의 질화물과, Si의 산화물과, Eu의 산화물을 포함하는 원료를 혼합하는 제1 공정과,제1 공정에 의해 얻어지는 혼합물을 소성하는 제2 공정을 가지며,상기 L의 질화물, 상기 Si의 질화물, 상기 Si의 산화물은O.5<L의 질화물<1.5,0.25<Si의 질화물<1.75,2.25<Si의 산화물<3.75의 몰비로 표시되는 것을 특징으로 하는 옥시질화물 형광체의 제조 방법.
- 제6항에 있어서, 상기 Eu의 산화물 대신에 또는 상기 Eu의 산화물과 함께, Eu의 질화물이 사용되는 것을 특징으로 하는 옥시질화물 형광체의 제조 방법.
- 제6항 또는 제7항에 있어서, 상기 L의 질화물의 적어도 일부는 Eu의 산화물및 Eu의 질화물 중 적어도 어느 하나로 치환되는 것을 특징으로 하는 옥시질화물 형광체의 제조 방법.
- 여기광원과, 이 여기광원으로부터의 광의 적어도 일부를 파장 변환하는 형광체를 갖는 발광장치로서,상기 형광체는 청록색에서부터 황적색계 영역에 발광 피크 파장이 있고, 사방정계의 결정을 갖는 옥시질화물 형광체가 함유되어 있으며,상기 옥시질화물 형광체는 일반식 SrxCa1-xSi2O2N2:Eu(0.3≤x≤0.7)로 표시되고, CaSi2O2N2:Eu보다도 발광 피크 파장이 단파장인 것을 특징으로 하는 발광장치.
- 여기광원과, 이 여기광원으로부터의 광의 적어도 일부를 파장 변환하는 형광체를 갖는 발광장치로서,상기 형광체는 청록색에서부터 황적색계 영역에 발광 피크 파장이 있고, 사방정계의 결정을 갖는 옥시질화물 형광체가 함유되어 있으며,상기 옥시질화물 형광체는 일반식 CaxBa1-xSi2O2N2:Eu(0.2≤x≤0.4)로 표시되는 것을 특징으로 하는 발광장치.
- 제9항 또는 제10항에 있어서, 상기 옥시질화물 형광체는 500 nm보다도 370 nm 쪽이 높은 강도를 갖는 여기 스펙트럼을 가지고 있는 것을 특징으로 하는 발광장치.
- 제9항 또는 제10항에 있어서, 상기 여기광원은 자외영역에서부터 가시광의 단파장측 영역에 적어도 1 이상의 발광 피크 파장이 있는 것을 특징으로 하는 발광장치.
- 제9항 또는 제10항에 있어서, 상기 여기광원은 발광소자인 것을 특징으로 하는 발광장치.
- 제13항에 있어서, 상기 발광소자의 발광층은 In을 포함하는 질화물 반도체를 갖는 것을 특징으로 하는 발광장치.
- 제9항 또는 제10항에 있어서, 상기 형광체는 옥시질화물 형광체와 함께 이용되는 제2 형광체가 함유되어 있고,상기 제2 형광체는 상기 여기광원으로부터의 광, 및 상기 옥시질화물 형광체로부터의 광의 적어도 일부를 파장 변환하고, 가시광 영역에 발광 피크 파장을 갖고 있는 것을 특징으로 하는 발광장치.
- 제15항에 있어서, 상기 제2 형광체는 청색계 영역에서부터 녹색계, 황색계, 적색계 영역까지 적어도 1 이상의 발광 피크 파장을 갖고 있는 것을 특징으로 하는 발광장치.
- 제15항에 있어서, 상기 발광장치는 상기 여기광원으로부터의 광의 일부와, 상기 옥시질화물 형광체로부터의 광과, 상기 제2 형광체로부터의 광 중 적어도 2 이상의 광이 혼합되어 방출되는 것을 특징으로 하는 발광장치.
- 제15항에 있어서, 상기 발광장치는 상기 여기광원이 갖는 발광 피크 파장에서부터 상기 옥시질화물 형광체가 갖는 발광 피크 파장 또는 제2 형광체가 갖는 발광 피크 파장까지의 중간의 발광색을 갖는 것을 특징으로 하는 발광장치.
- 제18항에 있어서, 상기 중간의 발광색은 백색계의 발광인 것을 특징으로 하는 발광장치.
- 제15항에 있어서, 상기 발광장치는 적어도 430 nm 내지 500 nm, 500 nm 내지 730 nm에 1 이상의 발광 피크 파장이 있는 발광 스펙트럼을 갖는 것을 특징으로 하는 발광장치.
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Also Published As
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US7951306B2 (en) | 2011-05-31 |
AU2003273003A1 (en) | 2004-05-25 |
HK1107574A1 (en) | 2008-04-11 |
US7951308B2 (en) | 2011-05-31 |
KR100982617B1 (ko) | 2010-09-15 |
HK1106268A1 (en) | 2008-03-07 |
EP2241607A2 (en) | 2010-10-20 |
EP2241608A3 (en) | 2011-02-16 |
EP2241608A2 (en) | 2010-10-20 |
KR20050062623A (ko) | 2005-06-23 |
MY149573A (en) | 2013-09-13 |
US7794624B2 (en) | 2010-09-14 |
US20060076883A1 (en) | 2006-04-13 |
KR20100046067A (ko) | 2010-05-04 |
TW200419826A (en) | 2004-10-01 |
US7951307B2 (en) | 2011-05-31 |
HK1108710A1 (en) | 2008-05-16 |
US20100288973A1 (en) | 2010-11-18 |
EP2241607A3 (en) | 2011-02-16 |
EP1571194B1 (en) | 2012-12-12 |
EP1571194A4 (en) | 2010-07-07 |
TWI246203B (en) | 2005-12-21 |
US20100289403A1 (en) | 2010-11-18 |
EP2241608B1 (en) | 2016-01-06 |
EP2241607B1 (en) | 2013-03-06 |
US20100289404A1 (en) | 2010-11-18 |
WO2004039915A1 (ja) | 2004-05-13 |
EP1571194A1 (en) | 2005-09-07 |
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