Room temperature photoluminescence from nanostructured amorphous carbon

被引：65

作者：

Henley, SJ ^{[1
]}

Carey, JD ^{[1
]}

Silva, SRP ^{[1
]}

机构：

[1] Univ Surrey, Sch Elect & Phys Sci, Adv Technol Inst, Nano Elect Ctr, Guildford GU2 7XH, Surrey, England

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 25期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.1839641

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Visible room-temperature photoluminescence (PL) was observed from hydrogen-free nanostructured amorphous carbon films deposited by pulsed laser ablation in different background pressures of argon (P-Ar). By varying P-Ar from 5 to 340 mTorr, the film morphology changed from smooth to rough and at the highest pressures, low-density filamentary growth was observed. Over the same pressure regime an increase in the ordering of sp(2) bonded C content was observed using visible Raman spectroscopy. The origin of the PL is discussed in terms of improved carrier localization within an increased sp(2) rich phase. (C) 2004 American Institute of Physics.

引用

收藏

页码：6236 / 6238

页数：3

相关论文

共 15 条

[1] Synthesis of carbon films with controlled nanostructure by separation of neutral clusters in supersonic beams [J].

Barborini, E ;

Piseri, P ;

Li Bassi, A ;

Ferrari, AC ;

Bottani, CE ;

Milani, P .

CHEMICAL PHYSICS LETTERS, 1999, 300 (5-6) :633-638

[2] PHOTOLUMINESCENCE IN A-C-H FILMS [J].

DEMICHELIS, F ;

SCHREITER, S ;

TAGLIAFERRO, A .

PHYSICAL REVIEW B, 1995, 51 (04) :2143-2147

[3] Interpretation of Raman spectra of disordered and amorphous carbon [J].

Ferrari, AC ;

Robertson, J .

PHYSICAL REVIEW B, 2000, 61 (20) :14095-14107

[4] Morphological study of PLD grown carbon films [J].

Geretovszky, Z ;

Haraszti, T ;

Szörényi, T ;

Antoni, F ;

Fogarassy, E .

APPLIED SURFACE SCIENCE, 2003, 208 :566-574

[5] Anomalous temperature dependence of photoluminescence from a-C:H film deposited by energetic hydrocarbon ion beam [J].

Liao, MY ;

Feng, ZH ;

Yang, SY ;

Chai, CL ;

Liu, ZK ;

Yang, JL ;

Wang, ZG .

SOLID STATE COMMUNICATIONS, 2002, 121 (05) :287-290

[6] Photoluminescence and Raman spectroscopy in hydrogenated carbon films [J].

Marchon, B ;

Gui, J ;

Grannen, K ;

Rauch, GC ;

Ager, JW ;

Silva, SRP ;

Robertson, J .

IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) :3148-3150

[7] Recombination and photoluminescence mechanism in hydrogenated amorphous carbon [J].

Robertson, J .

PHYSICAL REVIEW B, 1996, 53 (24) :16302-16305

[8] Low threshold field emission from nanoclustered carbon grown by cathodic arc [J].

Satyanarayana, BS ;

Robertson, J ;

Milne, WI .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (06) :3126-3131

[9] Raman spectroscopy on amorphous carbon films [J].

Schwan, J ;

Ulrich, S ;

Batori, V ;

Ehrhardt, H ;

Silva, SRP .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (01) :440-447

[10] Amorphous-tetrahedral diamondlike carbon layered structures resulting from film growth energetics [J].

Siegal, MP ;

Barbour, JC ;

Provencio, PN ;

Tallant, DR ;

Friedmann, TA .

APPLIED PHYSICS LETTERS, 1998, 73 (06) :759-761