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A significant advance toward achieving practical applications of graphene as a two-dimensional material in nanoelectronics would be provided by successful synthesis of both n-type and p-type doped graphene. However reliable doping and a…

Mesoscale and Nanoscale Physics · Physics 2013-10-24 Yu-Fen Lu , Shun-Tsung Lo , Jheng-Cyuan Lin , Wenjing Zhang , Jing-Yu Lu , Fan-Hung Liu , Chuan-Ming Tseng , Yi-Hsien Lee , Chi-Te Liang , Lain-Jong Li

We report the first empirical efficiency measurement of germanium-based thermophotovoltaic devices under high-temperature, high-irradiance conditions using a high view-factor calorimetric setup. Two TPV cell architectures were fabricated on…

Applied Physics · Physics 2026-02-10 A. M. Medrano , E. Lopez , Pablo Garcia-Linares , J. Villa , M. Gamel , M. Garin , I. Martin , C. Canizo , A. Datas

The growth and characterization of Bismuth (Bi) substituted YIG (Bi-YIG, Bi0.1Y2.9Fe5O12) thin films are reported. Pulsed laser deposited (PLD) films with thicknesses ranging from 20 to 150 nm were grown on Gadolinium Gallium Garnet…

Materials Science · Physics 2022-09-02 Ganesh Gurjar , Vinay Sharma , Satyabrata Patnaik , Bijoy K. Kuanr

Despite the highly porous nature with significantly large surface area, metal organic frameworks (MOFs) can be hardly used in electronic, and optoelectronic devices due to their extremely poor electrical conductivity. Therefore, the study…

First-principles calculations based on density functional theory (DFT) have been employed to investigate the structural, electronic, and gas-sensing properties of pure, defected, and doped germanene nanosheets. Our calculations have…

Materials Science · Physics 2017-07-13 Md Monirojjaman Monshi , Sadegh Mehdi Aghaei , Irene Calizo

We present an electrochemical route for the integration of graphene with light sensitive copper-based alloys used in optoelectronic applications. Graphene grown using chemical vapor deposition (CVD) transferred to glass is found to be a…

During the growth of metal thin films on dielectric substrates at a given deposition temperature T, the film's morphology is conditioned by the magnitude and asymmetry of up- and downhill diffusion. Any severe change of this mechanism leads…

Mesoscale and Nanoscale Physics · Physics 2013-04-17 Henning Galinski , Thomas Ryll , Philipp Reibisch , Lukas Schlagenhauf , Iwan Schenker , Ludwig J. Gauckler

Nitride films are promising for advanced optoelectronic and electronic device applications. However, some challenges continue to impede development of high aluminum-containing devices. The two major difficulties are growth of high…

Materials Science · Physics 2023-05-03 Yu-Han Liang , T. Nuhfer , Elias Towe

GaMnAs/GaAs films were grown via molecular beam epitaxy using both low and high substrate temperatures. The films were investigated using Hall effect and photoluminescence (PL) measurements from 8 to 300 K. The carrier concentrations in the…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 J. F. Xu , S. W. Liu , M. Xiao , P. M. Thibado

Large area epitaxy of two-dimensional (2D) layered materials with high material quality is a crucial step in realizing novel device applications based on 2D materials. In this work, we report high-quality, crystalline, large-area gallium…

Transient reflectivity (TR) measured at laser photon energy 1.51 eV from the indirectly intersurface coupled topological insulator Bi2-xMnxSe3 films (12 nm thick) revealed a strong dependence of the rise-time and initial decay-time…

Mesoscale and Nanoscale Physics · Physics 2016-04-20 Yuri D. Glinka , Sercan Babakiray , Mikel B. Holcomb , David Lederman

g-C3N4 is a novel semiconductor photocatalyst material; however, the low specific surface area and rapid carrier compliance hinder its photocatalytic performance. On the other hand, the synthesis of 2D g-C3N4 with high crystallinity remains…

Applied Physics · Physics 2023-06-21 Ying Du , Meng Wu , Hui-Qiong Wang , Junyong Kang

CeCoIn5 (Co115) thin films have been grown on Al2O3 (000l) substrates through the pulsed laser deposition (PLD). The films are grown mainly along the c-axis, with CeIn3 and In-related alloys. The rock-salt type grains are nucleated, where…

Superconductivity · Physics 2022-05-11 Kim Jihyun , Lee Hanul , Lee Sangyun , Park Sungmin , Park Tuson , Cho YoonHee , Lee Hyoyoung , Kang WonNam , Choi Woo Seok

We report a new in-situ reactive deposition thin film growth technique for the production of MgB2 thin films which offers several advantages over all existing methods and is the first deposition method to enable the production of…

Superconductivity · Physics 2009-11-11 Brian H. Moeckly , Ward S. Ruby

$\beta$-Ga$_2$O$_3$ is a next-generation ultra wide bandgap semiconductor (E$_g$ = 4.8 eV to 4.9 eV) that can be homoepitaxially grown on commercial substrates, enabling next-generation power electronic devices among other important…

Applied Physics · Physics 2020-08-05 M. Brooks Tellekamp , Karen N. Heinselman , Steve Harvey , Imran Khan , Andriy Zakutayev

Gallium Oxide (Ga2O3) has a huge potential on the power device for its high breakdown filed and good transport properties. beta-Ga2O3 as the thermodynamics stable phase, has been demonstrated to form high electron mobility transistor (HEMT)…

Applied Physics · Physics 2019-01-17 Yi Lu , Hsin-Hung Yao , Jingtao Li , Jianchang Yan , Junxi Wang , Jinmin Li , Xiaohang Li

Doping-induced superconductivity in group IV elements may enable quantum functionalities in material systems accessible with well-established semiconductor technologies. Non-equilibrium hyperdoping of group III atoms into C, Si, or Ge can…

Niobium nitride (NbN) is widely used in high-frequency superconducting electronics circuits because it has one of the highest superconducting transition temperatures ($T_c$ $\sim$ 16.5 K) and largest gap among conventional superconductors.…

Superconductivity · Physics 2017-04-06 D. Hazra , N. Tsavdaris , S. Jebari , A. Grimm , F. Blanchet , F. Mercier , E. Blanquet , C. Chapelier , M. Hofheinz

Nb-doped SrTiO$_{3}$ epitaxial thin films have been prepared on (001) SrTiO$_{3}$ substrates using pulsed laser deposition. A high substrate temperature ($>1000^{\circ}{C}$) was found to be necessary to achieve 2-dimensional growth. Atomic…

Superconductivity · Physics 2015-06-25 K. S. Takahashi , D. Jaccard , K. Shibuya , T. Ohnishi , M. Lippmaa , J. -M. Triscone

We report thickness dependent metal insulator transition in Ga doped ZnO (Ga:ZnO) thin films grown by pulsed laser deposition technique. From the electrical transport measurements, we find that while the thinnest film exhibits a resistivity…

Materials Science · Physics 2017-04-13 Joynarayan Mukherjee , B. R. K. Nanda , M. S. Ramachandra Rao