Market study: nanoscale thermometry based on giant quantum dots

市场研究：基于巨型量子点的纳米级测温

• 批准号: 508634-2017
• 负责人: Rosei, Federico
• 金额: $ 0.88万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618460
• 关键词: Market; study; nanoscale; thermometry; based

Monitoring temperature at the nanoscale is quickly becoming a critical task for at least three areas of nanoscience, i.e., micro/nano-electronics, integrated photonics and nanobiotechnology, thereby pointing to multiple technological opportunities. Quantum dots (QDs) have shown their potential for nanoscale thermometry due to their temperature-dependent photoluminescence (PL) properties. Because of their extremely small size (usually from 2 to 6 nm), they have unique properties. When they are excited with a source of energy (electricity, ultraviolet radiation, light), they generate light of different colours depending on their size, shape and composition. Variations in the PL intensity/peak position have been extensively investigated. However, the PL intensity/peak position of temperature sensors depends on not only the local temperature, but also multiple other factors. An appealing alternative is the use of double emitting systems, in which two emission bands at different wavelengths are simultaneously monitored. The temperature is typically measured from the intensity ratio of the two emission peaks, allowing self-calibration of the system and increasing its robustness and reliability. For these reasons, fabricating a robust, accurate and precise nanoscale temperature sensor in a wide temperature range is still very challenging. Our invention addresses these issues by exploring a new core/shell QD, which is over ten nanometers in diameter and can be used as a nanothermometer. It can operate in a wide range of temperatures, in addition to being biocompatible, self-calibrating, ultrasensitive and multiparametric. This invention is expected to widely benefit a variety of fields. Hence we strongly believe that a market study for this innovative technology is extremely timely and will contribute to reinforce the impact of the high-technology Canadian industry on the international scene.

监测纳米尺度的温度正迅速成为至少三个纳米科学领域的一项关键任务，即微纳电子学、集成光子学和纳米生物技术，从而指出了多种技术机会。量子点(QD)具有温度相关的光致发光(PL)特性，已显示出在纳米温度测量方面的潜力。由于它们的尺寸非常小(通常从2到6 nm)，它们具有独特的性质。当它们被一种能源(电力、紫外线、光)激发时，它们会产生不同颜色的光，这取决于它们的大小、形状和组成。对发光强度/峰位置的变化进行了广泛的研究。然而，温度传感器的光致发光强度/峰位置不仅取决于局部温度，还取决于多种其他因素。另一个吸引人的选择是使用双发射系统，在该系统中，不同波长的两个发射波段被同时监测。温度通常是根据两个发射峰的强度比测量的，从而允许对系统进行自我校准，并增加其健壮性和可靠性。由于这些原因，在宽温度范围内制造一个坚固、准确和精密的纳米温度传感器仍然是非常具有挑战性的。我们的发明通过探索一种新的核/壳量子点来解决这些问题，这种量子点的直径超过十纳米，可以用作纳米温度计。它可以在广泛的温度范围内工作，此外还具有生物兼容性、自我校准、超灵敏和多参数特性。这项发明预计将广泛惠及各种领域。因此，我们坚信，对这种创新技术进行市场研究是非常及时的，将有助于加强加拿大高科技产业在国际舞台上的影响。