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CAREER:Electro-Optical Logic Gates Based on Perovskite Phototransistors

职业：基于钙钛矿光电晶体管的电光逻辑门

基本信息

批准号：
1942558
负责人：
John Labram
金额：
$ 50万
依托单位：
Oregon State University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-03-01 至 2025-02-28
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1942558&HistoricalAwards=false
关键词：
CAREER Electro Optical Logic Gates

项目摘要

NontechnicalThe PI will investigate opto-electronic circuits based on a new class of materials, metal halide perovskites. These materials are semiconductors like silicon, but they can be solution processed at low temperatures. Their electronic and optical properties can also be chemically tuned. The combination of low cost processing and wide variety has led to intense studies of these materials for devices such as solar cells and light emitting diodes. However, they have been scarcely considered to-date for opto-electronic circuits. The opto-electronic properties of perovskites will be studied, and they will be used to make proof-of-principle devices such as phototransistors. These devices will be incorporated into next-generation electronic circuits for applications such as differential amplifiers and optical sensors. They even have promise for neuromorphic circuits inspired by biological nervous systems. The PI will create and distribute videos related to this research via a YouTube channel as a part of this integrated research-education project. The PI will also develop stereoscopic videos compatible with virtual-reality (VR) headsets based on either 3D-rendered environments such as the inside a molecule or filmed in the laboratory. Web-based and desktop interactive 3D teaching applications compatible with VR headsets for education and research are also planned.TechnicalDespite being intensely studied for applications in solar cells and light emitting diodes, metal halide perovskites (MHPs) have to-date scarcely considered for information-processing applications, such as transistors and logic gates. Their high carrier mobility and strong, tunable, absorption properties make them ideal candidates for opto-electronic logic gates. While 2-terminal photodiodes have been employed as optical sensors in many applications, the authors here will restrict detection and amplification to a single device: a three-terminal phototransistor. Despite being poorly understood, phototransistors can potentially detect and process optical signals in a single circuit element, possess a responsivity tunable through the voltage applied to the third (gate) terminal, and can be employed in differential amplifiers. Within this project, the team will undertake a broad set of research activates concerning the optimization and study of MHPs for application in thin-film electronics; in particular, for implementation in phototransistor-based optical NOT gates. Reproducible and predictable MHP-based phototransistors will enable a range of novel devices such as differential amplifiers, mechanically flexible devices, optical polarization sensors, and neuromorphic light sensors. As part of this integrated research-education project, the PI will disseminate videos on topics related to this program of research via a YouTube channel. The PI will also develop and disseminate stereoscopic videos compatible with virtual-reality (VR) headsets based on either 3D-rendered environments (e.g. inside molecules), or filmed inside laboratories / classrooms. Additionally, web-based and desktop interactive 3D teaching applications compatible with VR headsets for education and research will be developed.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术性 PI 将研究基于新型材料金属卤化物钙钛矿的光电电路。这些材料与硅一样是半导体，但它们可以在低温下进行溶液加工。它们的电子和光学特性也可以通过化学方法进行调整。低成本加工和广泛的多样性相结合，引发了对这些材料用于太阳能电池和发光二极管等器件的深入研究。然而，迄今为止，它们很少被考虑用于光电电路。我们将研究钙钛矿的光电特性，并将其用于制造光电晶体管等原理验证器件。这些器件将被整合到下一代电子电路中，用于差分放大器和光学传感器等应用。他们甚至有望开发出受生物神经系统启发的神经形态电路。作为该综合研究教育项目的一部分，PI 将通过 YouTube 频道创建并分发与该研究相关的视频。 PI 还将开发与基于 3D 渲染环境（例如分子内部）或在实验室拍摄的虚拟现实 (VR) 耳机兼容的立体视频。还计划与用于教育和研究的 VR 耳机兼容的基于网络和桌面的交互式 3D 教学应用程序。技术尽管人们对太阳能电池和发光二极管的应用进行了深入研究，但金属卤化物钙钛矿 (MHP) 迄今为止很少考虑用于信息处理应用，例如晶体管和逻辑门。它们的高载流子迁移率和强大的可调谐吸收特性使它们成为光电逻辑门的理想选择。虽然二端光电二极管已在许多应用中用作光学传感器，但作者在此将检测和放大限制为单个设备：三端光电晶体管。尽管人们对光电晶体管了解甚少，但光电晶体管可以在单个电路元件中检测和处理光信号，具有可通过施加到第三（栅极）端子的电压调节的响应度，并且可以在差分放大器中使用。在该项目中，该团队将开展一系列广泛的研究活动，涉及薄膜电子器件中 MHP 的优化和研究；特别是用于基于光电晶体管的光学非门的实现。可重复且可预测的基于 MHP 的光电晶体管将使一系列新颖的设备成为可能，例如差分放大器、机械柔性设备、光学偏振传感器和神经形态光传感器。作为该综合研究教育项目的一部分，PI 将通过 YouTube 频道传播与该研究计划相关主题的视频。 PI 还将开发和传播与基于 3D 渲染环境（例如内部分子）或在实验室/教室内拍摄的虚拟现实 (VR) 耳机兼容的立体视频。此外，还将开发与 VR 耳机兼容的基于网络和桌面的交互式 3D 教学应用程序，用于教育和研究。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。