Aluminum Oxynitride Spinel (ALON)–A New Optical and Multimode Window Material

AlON: A brief history of its emergence and evolution

“…14 Collaborations with the Raytheon Company commenced in 1977 with Dr. Rick Gentilman, Ed Maguire and Tom Hartnett. 15 Several more Raytheon patents ensued. 16 McCauley and Corbin continued this work completing the full Al 2 O 3 -AlN phase equilibrium diagram, including the addition of the various AlN polytypoid phases 17,18 and the first comprehensive review in 1989.…”

Optical Properties of (Oxy)Nitride Materials: A Review

“…Aluminum Oxynitride, AlON has the cubic spinel structure, which is a limited solid solution in the system Al 2 O 3 –AlN . This spinel phase is stable with the Al 2 O 3 content varying in the range of 60–73 mol% or 64.5–76.5 mol% for temperatures between 1750°C and 2000°C.…”

“…Optically transparent (oxy)nitride ceramic materials, either in the form of bulks or in the form of thin films, have attracted great attentions because they are potentially used as transparent armors, window materials, optical coatings, transparent conductors, electro-optics devices due to a combination of excellent mechanical, optical, thermal, and chemical resistant properties. 19,48,[84][85][86][87][88]111,276,277 In this article, we concentrated solely on transparent or translucent (oxy)nitride ceramics which include aluminum oxynitride, aluminum nitride, a an b-sialons.…”

“…(Oxy)nitride materials display a vast range of properties including mechanical, thermal, magnetic, superconductivity, electrical, electronic, and optical properties. Among these, optical properties (i.e., reflectance, absorbance, transmittance, color, absorption edge, photoluminescence) of (oxy)nitrides are extremely interesting for us, because these properties are tunable with the O/N substitution in most cases, and enable (oxy)nitrides to find a wide range of applications such as antireflection coatings, solar absorbers, heat mirrors, colored pigments, visible‐light‐driven photocatalysts, spectral conversion phosphors,,,, and transparent windows and armors …”

“…Among these, optical properties (i.e., reflectance, absorbance, transmittance, color, absorption edge, photoluminescence) of (oxy)nitrides are extremely interesting for us, because these properties are tunable with the O/N substitution in most cases, and enable (oxy)nitrides to find a wide range of applications such as antireflection coatings, [58][59][60][61][62][63] solar absorbers, [64][65][66][67] heat mirrors, 68,69 colored pigments, [70][71][72][73][74] visible-light-driven photocatalysts, 27,[34][35][36][37][75][76][77][78][79] spectral conversion phosphors, [4][5][6][7][8][80][81][82] and transparent windows and armors. [83][84][85][86][87][88] Several reviews have been devoted to photocatalytic or photoluminescent (oxy)nitrides, 8,28,37,49,[75]…”