A review of thermal properties of CVD diamond films

Vispute, R. D.; Fu, Kun; Ni, Chaoying

doi:10.1007/s10853-023-08232-w

Cited by 13 publications

(1 citation statement)

References 139 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its electrical breakdown threshold is up to 2-10 MV/cm [1][2][3], making it attractive for highvoltage applications, such as field electron transistors [4][5][6][7][8], switching diodes [9][10][11][12][13], highenergy particle trapping [14][15][16][17][18], photoconductive antennas [19][20][21][22] and others. The thermal conductivity of diamond (24 W/cm•K) [23] is even higher than that of copper, which allows it to effectively dissipate heat [24][25][26][27][28]. Recently, diamond heat sinks have demonstrated high efficiency in reducing the temperature of GaN-based transistors [29].…”

Section: Introductionmentioning

confidence: 99%

CVD Encapsulation of Laser-Graphitized Electrodes in Diamond Electro-Optical Devices

Komlenok,

Kononenko,

Bolshakov

et al. 2023

Photonics

View full text Add to dashboard Cite

Conductive graphitized grooves on the dielectric surface of diamond have been created by KrF excimer laser radiation. The advantages of such a circuit board in high-field applications is rather limited because the crystal surface has a relatively low electrical breakdown threshold. To increase the electrical strength, a method of encapsulating surface conductive graphitized structures by chemical vapor deposition of an epitaxial diamond layer has been proposed and realized. The quality of the growth diamond is proved by Raman spectroscopy. A comparative study of the electrical resistivity of graphitized wires and the breakdown fields between them before and after diamond growth was carried out. The proposed technique is crucial for diamond-based high-field electro-optical devices, such as THz photoconductive emitters.

show abstract

Section: Introductionmentioning

confidence: 99%

CVD Encapsulation of Laser-Graphitized Electrodes in Diamond Electro-Optical Devices

Komlenok,

Kononenko,

Bolshakov

et al. 2023

Photonics

View full text Add to dashboard Cite

show abstract

Quasi‐2D Phonon Transport in Diamond Nanosheet

Zhu,

Ye,

Wen

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Nanomaterial phonon transport is crucial for miniaturized devices and superior thermophysical properties in condensed matter physics. Diamond nanosheets, applicable in nanoelectronics/optoelectronics, offer availability to explore dimensionality's impact on phonon transport. Raman spectroscopy is used to study the thermal conductivity (κ) of diamond nanosheets with a thickness below 100 nm. Results show a law above 140 K, highlighting Umklapp phonon scattering. Despite the reduced thickness, κ (1100‐2000 W/mK) remains higher than metals and most semiconductors, showcasing diamonds' remarkable in‐plane heat transfer. Intriguingly, the research uncovers unique length‐dependent behavior , consistent with graphene, the two‐dimensional (2D) allotrope. This research offers insights into thermal transport in quasi‐2D nanosheets, with significant implications for nanoscale heat management and highly efficient thermal devices.

show abstract

A Novel PiGF@Diamond Color Converter with a Record Thermal Conductivity for Laser‐Driven Projection Display

Yu,

Zhao,

Yang

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

High‐brightness laser lighting is confronted with crucial challenges in developing laser‐excitable color converting materials with effective heat dissipation and super optical performance. Herein, a novel composite of phosphor‐in‐glass film on transparent diamond (PiGF@diamond) is designed and fabricated via a facile low‐temperature co‐sintering strategy. The as‐prepared La3Si6N11:Ce3+ (LSN:Ce) PiGF@diamond with well‐retained optical properties of raw phosphor shows a record thermal conductivity of ≈599 W m−1 K−1, which is about 60 times higher than that of currently well‐used PiGF@sapphire (≈10 W m−1 K−1). As a consequence, this color converter can bear laser power density up to 40.24 W mm−2 and a maximum luminance flux of 5602 lm without luminescence saturation due to efficient inhibition of laser‐induced heat accumulation. By further supplementing red spectral component of CaAlSiN3:Eu2+ (CASN:Eu), the PiGF@diamond based white laser diode is successfully constructed, which can yield warm white light with a high color rendering index of 89.3 and find practical LD‐driven applications. The findings will pave the way for realizing the commercial application of PiGF composite in laser lighting and display.

show abstract

A review of thermal properties of CVD diamond films

Cited by 13 publications

References 139 publications

CVD Encapsulation of Laser-Graphitized Electrodes in Diamond Electro-Optical Devices

CVD Encapsulation of Laser-Graphitized Electrodes in Diamond Electro-Optical Devices

Quasi‐2D Phonon Transport in Diamond Nanosheet

A Novel PiGF@Diamond Color Converter with a Record Thermal Conductivity for Laser‐Driven Projection Display

Contact Info

Product

Resources

About