dc.contributor.author | Hasan, Md Mehedi | |
dc.date.accessioned | 2018-12-14T18:25:19Z | |
dc.date.available | 2018-12-14T18:25:19Z | |
dc.date.issued | 2018-12-14T18:25:19Z | |
dc.identifier.uri | http://hdl.handle.net/10222/75037 | |
dc.description | This thesis described how to control and engineering the perovskite morphology, and demonstrate stable and high performance photodetector devices | en_US |
dc.description.abstract | Scalable solution-processed methylammonium lead iodide-based perovskite materials are exhibiting high performance by controlling over the morphology, crystallinity, and crystal orientation in perovskite film. High-quality crystallized perovskite films and millimeter size single crystal grains were demonstrated using a meniscus-assisted blade coating technique. The blade-coated perovskite grain is also compared with conventional spin-coated perovskite film both in morphology and for application in optoelectronic devices. The dissertation is concluded by presenting the comparison of blade-coated perovskite photodetectors with the conventional spin-coated perovskite photodetector. The blade-coated perovskite photodetector obtains a responsivity (R) of 148.7 A/W using a 522nm wavelength of light with a calculated external quantum efficiency 3.52 × 104 % under at 4V bias, which is higher than the reference of conventional spin-coated devices. In addition, the larger crystal grain in blade-coated perovskite film enhanced the stability of the photodetector devices, to a value above 80% higher than a reference spin-coated device. | en_US |
dc.language.iso | en | en_US |
dc.subject | Perovskite materials | en_US |
dc.subject | Nanomaterials | en_US |
dc.subject | Optoelectronic devices | en_US |
dc.subject | Meniscus assisted blade coating technique | en_US |
dc.title | MACRO-SCALE LEAD HALIDE PEROVSKITE CRYSTALS IN STABLE HIGH-EFFICIENCY PHOTODETECTOR APPLICATIONS | en_US |
dc.date.defence | 2018-12-06 | |
dc.contributor.department | Department of Electrical & Computer Engineering | en_US |
dc.contributor.degree | Master of Applied Science | en_US |
dc.contributor.external-examiner | Dr. Stephen Corbin | en_US |
dc.contributor.graduate-coordinator | Dmitry Trukhachev | en_US |
dc.contributor.thesis-reader | Dr. Yuan Ma | en_US |
dc.contributor.thesis-supervisor | Dr. Ghada Koleilat | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |