유전 알고리즘을 이용한 Mn4+ 활성 적색 형광체 탐색

김민석; 박운배; Minseuk Kim; Woon Bae Park

Korean Journal of Materials Research, Vol.27, No.6, 312-317, June, 2017

DOI10.3740/MRSK.2017.27.6.312 Export Citation

유전 알고리즘을 이용한 Mn4+ 활성 적색 형광체 탐색

Search for Mn4+-Activated Red Phosphor by Genetic Algorithm

김민석, 박운배^†

세종대학교 나노신소재공학과

Minseuk Kim, and Woon Bae Park^†

Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea

E-mail:

In the construction of a white LED, the region of the red emission is a very important factor. Red light emitting materials play an important role in improving the color rendering index of commercial lighting. These materials also increase the color gamut of display products. Therefore, the development of novel phosphors with red emission and the study of color tuning are actively underway to improve product quality. In the present study, heuristic algorithms were used to search for phosphors capable of increasing the color rendering index and color gamut. Using a heuristic algorithm, the phosphors that were identified were SrGe4O9:Mn4+ and BaGe4O9:Mn4+. Emission spectra study confirmed that these phosphors emit light in the deep red wavelength region, which can fulfill the requirement for the improvement in color rendering index and color gamut for a white LED.

Keywords:light emitting diode;phosphor;genetic algorithm;solid-state lighting

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[1] Chen L, Lin CC, Yeh CW, Liu RS, Materials, 3, 2172 (2010)

[2] Schlotter P, Schmidt R, Schneider J, Appl. Phys. A-Mater. Sci. Process., 64, 417 (1997)

[3] Wei LL, Lin CC, Wang YY, Fang MH, Liu RS, Appl. Mater. Inter., 7, 10656 (2015)

[4] Oh JH, Kang H, Eo YJ, Park YJ, Do YR, J. Mater. Chem. C, 3, 607 (2015)

[5] Lee MJ, Song YH, Song YL, Han GS, Jung HS, Yoon DH, Mater. Lett., 141, 27 (2015)

[6] Nguyen HD, Lin CC, Fang MH, Liu RS, J. Mater. Chem. C, 2, 10268 (2014)

[7] Aria Y, Adach, J. Lumines., 131, 2652 (2011)

[8] Pust P, Weiler V, Hecht C, Tucks A, Wochnik AS, Henss AK, Wiechert D, Scheu C, Schmidt PJ, Schnick W, Nat. Mater., 13(9), 891 (2014)

[9] Sato Y, Kato H, Kobayashi M, Masaki T, Yoon DH, Sakihama M, Angew. Chem.-Int. Edit., 53, 7756 (2014)

[10] Recommendations ITU-R BT.2020-2, Parameter Values for UltraHigh Denition Television Systems for Production and International Programme Exchange; International Telecommunication Union, (2015).

[11] Brik MG, Pan YX, Liu GK, J. Alloy. Compd., 509, 1452 (2009)

[12] Kim M, Park WB, Bang B, Kim CH, Sohn KS, J. Am. Ceram. Soc., 100, 1044 (2016)

[13] Redhammer GJ, Tippelt G, Acta Crystallogr. Sect. C-Cryst. Struct. Commun., 69, 995 (2013)

[14] Redhammer GJ, Tippelt G, Acta Crystallogr. Sect. C-Cryst. Struct. Commun., 69, 1091 (2013)

[15] Kim SJ, Jang HS, Unithrattil S, Kim YH, Im WB, J. Lumines., 172, 99 (2016)

[16] Liang S, Shang M, Lian H, Li K, Zhang Y, Lin J, J. Mater. Chem. C, 4, 6409 (2016)

[17] Park WB, Singh SP, Kim M, Sohn KS, Inorg. Chem., 54(4), 1829 (2015)

[18] Park WB, Singh SP, Sohn KS, J. Am. Ceram. Soc., 136, 2363 (2014)

[19] Singh SP, Kim M, Park WB, Lee JW, Sohn KS, Inorg. Chem., 55(20), 10310 (2016)

[20] Srinivas N, Deb K, Evol. Comput., 2, 221 (1994)