SNM: Technologies for Nanoparticle Monolayer Self-Organization and Deposition

PI：James F GilchristProposal number：1120399本研究旨在推进纳米颗粒单层自组装和沉积的基础制造科学，将其作为商业纳米制造的单元操作。具体地说，拟议的项目将研究自组装方法的基本方面，将这些发现纳入连续的卷到卷商业规模的过程中，并开发利用这些过程的新型应用。这些工艺将使纳米多孔膜、柔性染料敏化太阳能电池(DSCs)和发光二极管(LED)的生产成为可能。智能价值这个可扩展的纳米制造计划专注于开发两个独立但基本相关的连续工艺，在衬底上沉积自组装颗粒阵列。第一个过程集中在对流沉积，第二个过程集中在自动朗缪尔-布洛杰特沉积。这两个过程都利用薄膜中颗粒的毛细相互作用进行定向颗粒自组装。探索这些过程的基本机制、局限性和稳定性的实验和计算方法将促进合理的放大和连续操作，并确定新的沉积控制参数。这一基本洞察力将作为确定扩展用途和目标应用的基础。为了确保这些工艺的可行性和稳健性，将利用这些工艺衍生的自组装颗粒沉积，同时开发三种与能源和生物工程相关的应用。其中包括开发用于染料敏化太阳能电池(DSCs)的纳米结构染料载体、用于发光二极管(LED)的涂层和内部结构，以及用于分子与病毒分离的周期性纳米孔膜。更广泛的影响广泛适用的商业颗粒单层沉积工艺的开发可能会对许多工业应用产生深远的影响。通过毛细管相互作用进行胶体自组装的基础研究，以及伴随而来的基础科学方面的研究，以及纳米多孔膜、DSC和LED的规模化生产，也可能影响到广泛的科学学科和行业，并可能导致疾病检测和能源应用等关键领域的重大进步。与行业合作伙伴的直接合作，包括Versatilis、LLC和PAPower Optics LLC，将指导商业化的努力。本科生和研究生将接受放大原理、表面科学、粒子技术、自组装、光伏、分离和多种表征技术的培训。与利哈伊教育学院成员合作的一项小学生倡议将使K-5年级的学生接触到与基础表面科学和科学方法有关的主题。

PI: James F GilchristProposal Number: 1120399This research seeks to advance the fundamental manufacturing science of nanoparticle monolayer self-assembly and deposition as a unit operation for commercial nano manufacturing. Specifically, the proposed project will investigate the fundamental aspects of self-assembly methods, incorporate these discoveries into continuous roll-to-roll commercial-scale processes, and develop novel applications that utilize these processes. These processes will enable production of nanoporous membranes, flexible dye sensitized solar cells (DSSCs), and light emitting diodes (LEDs).Intellectual MeritThis scalable nanomanufacturing program focuses on development of two separate but fundamentally related continuous processes that deposit self-assembled particle arrays on substrates. The first process focuses on convective deposition, and the second process focuses an automated Langmuir-Blodgett deposition. Both processes utilize capillary interactions of particles confined in thin films for directed particle self-assembly. Experimental and computational methods for exploring the fundamental mechanisms, limitations, and stabilities of each of these processes will advance rational scale-up and continuous operation and determination of new deposition control parameters. This fundamental insight will serve as the foundation for identifying expanded uses and target applications. To ensure feasibility and robustness of these processes, three energy and bioengineering-related applications will be developed in tandem utilizing self-assembled particle depositions derived from these processes. These include development of nanostructured dye supports in dye sensitized solar cells (DSSCs), coatings and internal structures for light emitting diodes (LEDs), and large-are periodic nanoporous membranes for molecular to viral separations. Broader impacts Development of broadly applicable, commercial particle monolayer deposition processes could have far-reaching impact on a multitude of industrial applications. Fundamental research on colloidal self-assembly via capillary interactions and concomitant research into fundamental scientific aspects and scalable production of nanoporous membranes, DSSCs, and LEDs could also impact a wide variety of scientific disciplines and industries, and could lead to significant advancements in key areas of disease detection and energy applications. Direct collaboration with industrial partners, including Versatilis, LLC and PAower Optics LLC will guide efforts to commercialization. Undergraduate and graduate students will be trained in the principles of scale-up, surface science, particle technology, self-assembly, photovoltaics, separations, and a multitude of characterization techniques. A primary student initiative in collaboration with members of the Lehigh College of Education will expose K-5 students to topics related to fundamental surface science and scientific methods.