SBIR Phase I: Highest Brightness Electroluminescent (and Cathodoluminescent) Oxide Display Films

* 9761108 Tompa 此小型企业创新研究第一阶段项目将研究和开发一系列用于绿色、蓝色和白色电致发光和阴极发光显示器的薄膜氧化物磷光体。 近年来，各种氧化物薄膜在发光显示器中显示出了很大的应用前景。 提议者处于独特的地位，可以利用和推动这些成果。 提议者计划使用MOCVD在很大范围内改变合金成分和掺杂剂浓度，以快速生产和鉴定各种氧化物磷光体。 在阶段I中，提议者将检查掺杂的ZnO基磷光体膜：用于绿色发射的Zn 2GeO 4：Mn（改进我们的ZnSiO：Mn结果）和用于绿色和蓝色发射的Mn和Ga/Ce掺杂的ZnGa 2 O 4和ZnIn 2 O 4，在阶段II中，提议者还将检查ZnTaO和ZnNbO磷光体。 要解决的主要问题是提高效率，辐射寿命，亮度，多层结构，以提高导电性和注入耦合，并尽量减少“光管道”的损失。 提议者将通过现有的合作研究和开发协议与陆军研究实验室的显示设备团队合作，以充分表征我们的电影，特别是在设备物理方面。 在第二阶段，提案人将建立在第一阶段的结果，研究额外的荧光粉和多层荧光粉结构，降低退火温度，确定实际的操作参数和原型EL（可能CL）灯。 此外，在第二阶段，提议者将检查红色发射的掺杂剂，以便最终可以制造基于氧化物的全色显示器。 与几家显示器公司合作，提议者将在第三阶段将结果商业化。 该项目将开发用于场致发光（和阴极发光）显示器的低电压薄膜磷光体，场致发光显示器和灯具有强大的市场潜力。 ***

*** 9761108 Tompa This Small Business Innovation Research Phase I Project will investigate and generically develop a series of thin film oxide phosphors for green, blue and white electroluminescent and cathodoluminescent displays. Recently, a variety of oxide films have shown great promise for emissive displays. The proposer is uniquely positioned to capitalize upon and advance those results. The proposer plans to use MOCVD to vary alloy composition and dopant concentrations over great ranges in order to rapidly produce and qualify a variety of oxide phosphors. In Phase I the proposer will examine doped ZnO based phosphor films: Zn2GeO4:Mn for green emission (improving upon our ZnSiO:Mn results) and Mn and Ga/Ce doped ZnGa2O4 and Znln2O4 for green and blue emission, in Phase II the proposer will also examine ZnTaO and ZnNbO phosphors. Primary issues to be addressed are improved efficiency, radiative lifetimes, brightness, multilayer structures to improve conductivity and injection coupling, and minimization of "light piping" losses. The proposer will work with the Display Devices Team at the Army Research Laboratory through an existing Cooperative Research and Development Agreement to fully characterize our films, especially with respect to device physics. In Phase II the proposer will build upon Phase I results, investigate additional phosphors and multilayer phosphor structures, reduce annealing temperatures, determine practical operational parameters and prototype EL (and possibly CL) lamps. Also, in Phase II the proposer will examine dopants for red emission so that ultimately full color oxide based displays could be fabricated. Working the several display companies, the proposer will commercialize the results in displays in Phase III. The project will develop low voltage thin film phosphors for electroluminescent (and cathodoluminescence) based displays which have strong market potential in field emitter based displays and lamps. ***