Single entity electrochemistry - Probing the photoelectrochemistry of individual perovskite nanocrystals

这项提议的目的是推动纳米级电化学显微镜的极限，以解决单个钙钛矿纳米晶体的光电化学活性，这些纳米晶体的尺寸只有几十纳米。最近发现的高光活性卤化物钙钛矿材料，由于其优异的光电性能，在发光二极管、太阳能电池、光催化剂、光探测器和激光等领域引起了科学家和工程师的关注。通过NSERC-FRQNT团队研究补充方案提供的新资金将使原来的FRQNT团队能够招募刘教授加入该项目，刘教授是钙钛矿型纳米材料领域的专家。该小组由魁北克大学早期职业研究员拜尔斯教授领导，并与麦吉尔大学毛泽罗尔教授和魁北克大学贝兰格教授合作开展工作。最初的团队项目专注于开发新的扫描电化学显微镜技术，使研究人员能够可视化电活性物种到单个纳米颗粒的通量。NOVA项目的目标是扩大新的扫描探针方法的应用，以表征可用于太阳能驱动的化学燃料(如氢)的单个光活性纳米材料，预计氢将在加拿大的清洁能源未来发挥越来越重要的作用。这项工作的结果将为研究和设计新的光活性纳米材料创造新的能力。

The objective of this proposal is to push the limits of nanoscale electrochemical microscopy to resolve the photoelectrochemical activity of individual perovskite nanocrystals that are only tens of nanometres in size. The recent discovery of highly photoactive halide perovskite materials has captivated the attention of scientists and engineers across many disciplines due to their outstanding optoelectronic properties that are useful for light emitting diodes, solar cells, photocatalysts, photodetectors and lasers. The new funding, provided through the NSERC-FRQNT Team Research supplements will allow the original FRQNT team to recruit Professor Liu to the project, who is an expert in the field of perovskite nanomaterials. The team is being led by Professor Byers, an early career researcher at the Université du Québec à Montréal and is being carried out in collaboration with Professor Mauzeroll at McGill Univeristy and Professor Bélanger at the Université du Québec à Montréal. The original team project focuses on the development of new scanning electrochemical microscopy techniques that will enable researchers to visualize the flux of electroactive species to individual nanoparticles. The objective of the NOVA project is to extend the application of the new scanning probe methodology towards the characterization of individual photoactive nanomaterials that can be used for the solar driven generation of chemical fuels, such as hydrogen, which is expected to play an increasingly important role in Canada's clean energy future. The results of this work will create new capability for studying and designing new photoactive nanomaterials.