CAREER: Environmentally Stable Electrically Pumped Perovskite Laser

职业：环境稳定的电泵浦钙钛矿激光器

• 批准号: 1941629
• 负责人: Qing Gu
• 金额: $ 50万
• 依托单位: University of Texas at Dallas
• 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: 2020-04-01 至 2022-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1941629&HistoricalAwards=false
• 关键词: CAREER; Environmentally; Stable; Electrically; Pumped

Non-technical description:Photonic integrated circuits (ICs) have enabled many applications such as optical communication, bio-sensing, and quantum communication. To utilize the full functionality of photonic ICs, integrated electronic-photonic circuits are demanded, an essential component of which is an economical, silicon-compatible, and electronically addressable laser in the photonic IC. In the visible wavelengths, although epitaxially grown III-N semiconductors are the main gain medium candidate for on-chip lasers, they lack silicon-compatibility and is expensive. This proposal explores solution-processed metal-halide perovskites as alternative gain media and develops perovskite laser diodes on the silicon platform. By judiciously engineering the gain medium composition and band alignment of carrier transport layers with perovskite gain, employing defect-passivation, and designing for low-threshold laser cavities, environmentally stable perovskite laser diodes can be realized. The family of perovskite lasers developed in this program will enable efficient and low-cost integrated photonic solutions for confocal microscopy, on-chip fluorescent sensing, and flow cytometry in the bio-photonics area, as well as visible light communication and on-chip quantum emitters in the optical communication area. It will also help closing the “green gap” where conventional epitaxially grown inorganic semiconductors suffer from low efficiencies, and advance the field of solution-processed semiconductor lasers. The educational portion of the program aims to increase public awareness of photonics and to pipeline qualified students to help advance the U.S. photonics industry.Technical description:A crucial yet unavailable component in high-performance visible-wavelength photonic ICs and other chip-scale photonic systems is a silicon-compatible on-chip laser that is efficient, stable, economical, and electronically addressable. So far, III-N lasers are the main candidates, but their material platform requires complex epitaxial growth and lattice constant matching to the silicon substrate. Although solution-processed metal-halide perovskites have been suggested as alternative gain media, and many perovskite lasers have been demonstrated so far, all perovskite lasers to date are optically pumped. Additionally, they operate under ultrafast pulsed pumping and/or at cryogenic temperatures and have a short lifetime. This program starts by developing economical, environmentally stable and silicon-compatible perovskite lasers that operate under continuous wave optical pumping at room temperature. This can be achieved by directly patterning perovskite into high-Q laser resonators with the manufacturing friendly nanoimprint lithography, then defect-passivating the perovskite with polycarbonate. This program further aims to demonstrate electrically pumped perovskite lasers through band alignment tailoring of carrier transport layers for efficient current injection, perovskite-polymer blending for minimal leakage current, low-loss electrode formation to reduce wasteful non-radiative recombination at electrodes, and low-threshold laser cavity design. This work will not only lead to the insertion of perovskite lasers into functional photonic ICs, but also the long-sought-after realization of solution-processed laser diodes. On a more system level, this work will enable the connectivity between the photonic “plane” and electronic “plane” in multi-functional adaptive photonic/electronic integrated systems.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.

非技术描述：光子综合电路（IC）启用了许多应用程序，例如光学通信，生物传感和量子通信。为了利用光子IC的全部功能，需要进行集成的电子光电电路，其中必不可少的成分是光子IC中经济的，具有硅兼容且具有电子地址的激光器。在可见的波长中，尽管外延生长的III-N半导体是芯片激光器的主要增益培养基，但它们缺乏硅兼容性，而且很昂贵。该提案探索了溶液处理的金属甲基钙钛矿作为替代增益培养基，并在硅平台上开发了钙钛矿激光二极管。通过明智地设计具有钙钛矿增益的载体传输层的增益中等成分和带对齐，采用缺陷passivation和为低阈值激光腔设计，可以实现环境稳定的钙钛矿激光器的语音。该程序中开发的钙钛矿激光器家族将使生物光子学区域中的共聚焦显微镜，片上荧光感应和流式细胞仪以及可见光光通信和光学量子量子仪的有效且低成本的光子解决方案和流式细胞仪。它还将有助于缩小常规外延无机半导体效率低的“绿色差距”，并推进解决方案处理的半导体激光器的领域。 The educational portion of the program aims to increase public awareness of photonics and to pipeline qualified students to help advance the U.S. photonics industry.Technical description:A crucial yet unavailable component in high-performance visible-wavelength photonic ICs and other chip-scale photonic systems is a silicon-compatible on-chip laser that is Efficient, stable, economical, and electronically addressable.到目前为止，III-N激光器是主要候选者，但是它们的材料平台需要复杂的外延生长和与硅底物匹配的晶格持续匹配。尽管已建议解决溶液处理的金属 - 甲基钙钛矿钙钛矿作为替代增益培养基，并且到目前为止已经证明了许多钙钛矿激光器，但迄今为止，所有钙钛矿激光器迄今为止均已光学泵送。此外，它们在超快的脉冲抽水和/或低温温度下运行，寿命很短。该程序首先要在室温下开发经济，环境稳定和与硅兼容的钙钛矿激光器。这可以通过将钙钛矿直接通过制造友好的纳米印刷光刻将钙钛矿直接绘制到高Q激光谐振器中，然后用聚碳酸酯将钙钛矿造成缺陷。该计划进一步旨在通过对载体传输层的带对齐方式裁缝来证明电泵送的钙钛矿激光器，以进行有效的电流注入，钙钛矿 - 聚合物混合物的混合物，以减少泄漏电流，低损耗电极形成，以减少电子的浪费非降压重组，并在电子和低位的Laser Laser Cavity设计中。这项工作不仅会导致将钙钛矿激光器插入功能性光子IC中，而且还会导致溶液处理激光二极管的长期实现。从更高的系统层面上，这项工作将使光子“平面”和电子“平面”之间的连通性在多功能自适应光电/电子集成系统中。这项奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子优点和更广泛影响的审查标准来评估通过评估而被认为是珍贵的。

项目成果

High-speed nanoLEDs for chip-scale communication

用于芯片级通信的高速 nanoLED

• DOI: 10.1016/j.nancom.2021.100376
• 发表时间: 2021
• 期刊: Nano Communication Networks
• 影响因子: 2.9
• 作者: Murillo-Borjas, Bayron Lennin;Li, Xi;Gu, Qing
• 通讯作者: Gu, Qing

Surface Energy-Driven Preferential Grain Growth of Metal Halide Perovskites: Effects of Nanoimprint Lithography Beyond Direct Patterning

• DOI: 10.1021/acsami.0c17655
• 发表时间: 2021-01-21
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: Moon, Jiyoung;Kwon, Sunah;Gu, Qing
• 通讯作者: Gu, Qing

Active Perovskite Hyperbolic Metasurface

• DOI: 10.1021/acsphotonics.0c00391
• 发表时间: 2020-02
• 期刊: ACS Photonics
• 影响因子: 7
• 作者: Zhitong Li;J. Smalley;R. Haroldson;Dayang Lin;R. Hawkins;Abouzar Gharajeh;Jiyoung Moon;Junpeng Hou;Chuanwei Zhang;Walter Hu;A. Zakhidov;Q. Gu

Pure Blue Electroluminescence by Differentiated Ion Motion in a Single Layer Perovskite Device

• DOI: 10.1002/adfm.202102006
• 发表时间: 2021-06-04
• 期刊: ADVANCED FUNCTIONAL MATERIALS
• 影响因子: 19
• 作者: Mishra, Aditya;Alahbakhshi, Masoud;Slinker, Jason D.
• 通讯作者: Slinker, Jason D.

Bright Single-Layer Perovskite Host–Ionic Guest Light-Emitting Electrochemical Cells

• DOI: 10.1021/acs.chemmater.0c03934
• 发表时间: 2021-01
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: Aditya Mishra;Stephen Diluzio;Masoud Alahbakhshi;Austen C. Adams;Melanie H. Bowler;Jiyoung Moon;Q. Gu-Q