Cilt 18, Sayı 2, Sayfalar 375 - 387 2017-06-30

CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2

Doç.Dr. Nihan Kosku Perkgöz [1]

101 267

Two-dimensional transition metal dichalcogenides (TMDC), specifically molybdenum disulfide and tungsten disulfide have received significant attention as their direct bandgap exhibits a shift from indirect to direct as the layer goes to single molecular thickness (2D). Hence, they have high potential to pave way for novel optoelectronic devices. However, their structural and optical properties are still not completely understood, especially, spatial change of photoluminescence intensities, variations in excitons-trions, and shift in peak wavelengths in these 2D flake structures need further investigation. In this research work, after growing TMDCs using chemical vapor deposition technique, in addition to measuring micro Raman and photoluminescence spectra, we performed dark field microscopy measurements and photoluminescence mappings to identify grain boundaries and seeding particles. The results clearly show that the flakes, which look lie single-piece through the optical spectroscopy images, in fact, include grain boundaries, seeds and wrinkles. Photoluminescence maps reveal that emission occurs due to different mechanisms such as excitons and trions, depending on the locations on the flakes where the measurement is performed. Our results show that there are different routes that emission can occur and 2D TMDCs provide a rich variety of alternatives to realize novel photonic devices. 

MoS2,WS2,two-dimensional materials,chemical vapor deposition
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Konular Mühendislik ve Temel Bilimler
Dergi Bölümü Araştırma Makalesi
Yazarlar

Yazar: Doç.Dr. Nihan Kosku Perkgöz
E-posta: nkperkgoz@anadolu.edu.tr
Kurum: Electrical and Electronics Department, Engineering Faculty, Anadolu University, Eskişehir
Ülke: Turkey


Bibtex @araştırma makalesi { aubtda303258, journal = {Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik}, issn = {1302-3160}, address = {Anadolu Üniversitesi}, year = {2017}, volume = {18}, pages = {375 - 387}, doi = {10.18038/aubtda.303258}, title = {CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2}, language = {en}, key = {cite}, author = {Kosku Perkgöz, Nihan} }
APA Kosku Perkgöz, N . (2017). CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2. Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik, 18 (2), 375-387. DOI: 10.18038/aubtda.303258
MLA Kosku Perkgöz, N . "CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2". Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik 18 (2017): 375-387 <http://dergipark.gov.tr/aubtda/issue/29641/303258>
Chicago Kosku Perkgöz, N . "CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2". Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik 18 (2017): 375-387
RIS TY - JOUR T1 - CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2 AU - Doç.Dr. Nihan Kosku Perkgöz Y1 - 2017 PY - 2017 N1 - doi: 10.18038/aubtda.303258 DO - 10.18038/aubtda.303258 T2 - Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik JF - Journal JO - JOR SP - 375 EP - 387 VL - 18 IS - 2 SN - 1302-3160-2146-0205 M3 - doi: 10.18038/aubtda.303258 UR - http://dx.doi.org/10.18038/aubtda.303258 Y2 - 2017 ER -
EndNote %0 Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2 %A Doç.Dr. Nihan Kosku Perkgöz %T CVD GROWTH and CHARACTERIZATION OF 2D TRANSITION METAL DICHALCOGENIDES, MoS2 and WS2 %D 2017 %J Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi A - Uygulamalı Bilimler ve Mühendislik %P 1302-3160-2146-0205 %V 18 %N 2 %R doi: 10.18038/aubtda.303258 %U 10.18038/aubtda.303258