NATIONAL BIBLIOGRAPHY NUMBER
Number
۲۰۴۷۶پ
LANGUAGE OF THE ITEM
.Language of Text, Soundtrack etc
per
TITLE AND STATEMENT OF RESPONSIBILITY
Title Proper
مطالعه خواص نوری تک لایه دی چالکوجناید فلز واسطه تعبیه شده در یک میکروکاواک نیم رسانا
Parallel Title Proper
The Study of the Optical Properties of Embedded Single Layer TMDC in a Semiconductor Microcavity
First Statement of Responsibility
/فاطمه‌السادات ابطحی
.PUBLICATION, DISTRIBUTION, ETC
Name of Publisher, Distributor, etc.
: فیزیک
Date of Publication, Distribution, etc.
، ۱۳۹۷
Name of Manufacturer
، میرزائی
PHYSICAL DESCRIPTION
Specific Material Designation and Extent of Item
۹۵ص
NOTES PERTAINING TO PUBLICATION, DISTRIBUTION, ETC.
Text of Note
چاپی - الکترونیکی
DISSERTATION (THESIS) NOTE
Dissertation or thesis details and type of degree
کارشناسی ارشد
Discipline of degree
فوتونیک گرایش فیزیک
Date of degree
۱۳۹۷/۱۱/۱۷
Body granting the degree
تبریز
SUMMARY OR ABSTRACT
Text of Note
دی‌چالکوجنایدهای فلزات واسطه (TMDCs (مواد نیم‌رسانایی هستند که در حالت دوبعدی دارای نوار ممنوعه مستقیم هستند و طی سال‌های اخیر در دستگاه‌های اپتوالکترونیکی مانند دیودهای نوری، سلول‌های خورشیدی، افزاره‌های فوتونیکی سریع و فرستنده‌های تک‌فوتونی مورد استفاده قرار گرفته‌اندTMDC .ها برخلاف دیگر مواد نیم‌رسانا که تاکنون کشف شده‌اند، دارای ۲ وادی در دو قسمت متفاوتk
Text of Note
120 meV) mono-layer structures, respectively~( 60 meV) and WS_2~( - of Brillouin zone. This characteristic results selection of optical excitation in different valleys due to the polarization of incident light. Therefore, one can use the exciton and valley degrees of freedom in utilization of exciton-polaritons. These materials have been successfully coupled to photonic crystals, plasmonic structures and microcavities. In mono-layer TMDCs, Binding energy of excitons due to electron interactions with holes in conduction band is high and optical and electronical properties can be controlled by an exciton with high binding energy (above 0.55ev), polariton quasi-particles can be produced by an intensive coupling of an electromagnetic wave to exciton quasi-particles. In TMDCs, these quasi-particles are depend on polarization and cause a new phenomenon called spin-valley coupling in polaritonic that has been of interest recently. If we couple these materials to a microcavity it results in a higher emission coupling. Furthermore, due to strong binding of excitons and strong oscillation strength of TMDCs, these exciton-polariton quasi-particles can be seen in room temperature. In this thesis, first we have investigated the absorption of MoS_2 mono-layer, considering the shape of microcavity, angle of incident light and position of mono-layer inside the microcavity. Then we have shown the strong two-deminsional coupling of excitons due to trapped photons in the microcavity by using four different TMDCs mono-layer (MoS_2, MoSe_2, WS_2 and WSe_2) in semiconductor microcavities. Our results show high values for Vacuum Rabi-Splitting in the respective structure that lowest and highes values are for WSe_2
PARALLEL TITLE PROPER
Parallel Title
The Study of the Optical Properties of Embedded Single Layer TMDC in a Semiconductor Microcavity
PERSONAL NAME - PRIMARY RESPONSIBILITY
ابطحی، فاطمه‌السادات
Abtahi, Fatemeh Alsadat
ELECTRONIC LOCATION AND ACCESS
Public note
سیاه و سفید
نمایه‌سازی قبلی
