id	label	x	y	cluster	weight
3758	zigzag edge	-0.8271	-0.2234	1	9
3755	zig zag	-0.8227	-0.2269	1	4
3742	young's modulus	-0.2646	-0.4945	4	8
3739	xps	-0.0361	-0.3782	3	4
3738	x ray photoelectron spectroscopy	0.4778	-0.2659	5	12
3736	x ray diffraction analysis	0.4595	-0.4557	4	10
3735	x ray diffraction	0.6636	-0.3898	5	14
3717	weak localization	-1.0913	0.0007	1	4
3700	water	0.614	0.1625	2	9
3681	vapor	-0.1703	-0.1007	3	7
3679	van der waals force	-0.535	-0.2727	1	4
3654	unclassified drug	0.8004	0.4054	2	10
3650	ultraviolet spectroscopy	0.7507	0.2534	2	6
3643	ultrastructure	0.1236	0.2859	3	11
3617	two dimensional	-0.4442	-0.043	1	13
3608	tunneling current	-0.6931	0.255	1	4
3606	tunneling (excavation)	-1.0304	0.2001	1	4
3585	transport property	-0.8514	0.01	1	21
3572	transmission electron microscopy	0.5094	-0.2283	5	23
3561	transistor	-0.6069	0.3977	3	4
3540	titanium	0.4759	0.0514	7	4
3528	tight binding model	-1.0895	-0.0115	1	5
3503	thermogravimetric analysis	0.5769	-0.4571	4	7
3496	thermoanalysis	0.0218	-0.4614	4	4
3485	thermal conductivity	-0.3914	-0.3738	4	5
3481	theoretical study	-0.6043	-0.1669	1	8
3477	theoretical model	-0.5891	0.1208	1	4
3459	tera hertz	-0.8613	0.5885	6	4
3457	tensile strength	0.1664	-0.6314	4	8
3442	temperature dependence	-0.6247	0.0147	1	4
3441	temperature	0.1022	-0.0549	7	4
3440	tem (transmission electron microscopy)	0.0673	-0.2539	4	5
3421	synthesis (chemical)	0.6029	-0.3215	5	15
3420	synthesis	0.7351	0.1879	2	11
3395	surface property	0.4098	0.2477	2	21
3387	surface defect	-0.1587	-0.3033	1	4
3385	surface chemistry	0.1685	-0.1293	4	4
3379	surface	0.0205	-0.1326	3	7
3365	superconductivity	-1.088	-0.0349	1	6
3364	superconducting material	-1.0395	-0.0147	1	7
3358	supercapacitor	0.7109	-0.6859	5	7
3345	substrate	-0.2688	0.0109	3	14
3316	strong interaction	0.0546	-0.2609	4	4
3241	spin polarization	-1.078	-0.0695	1	5
3233	spin dynamic	-0.985	-0.1129	1	19
3218	spectrum analysis. raman	0.3042	0.3653	2	4
3217	spectrum analysis	-0.0339	0.0251	1	9
3213	spectroscopy	-0.3106	0.2339	1	6
3212	spectroscopic analysis	0.1426	-0.0726	4	4
3200	specific capacitance	0.6729	-0.6761	5	4
3189	sound reproduction	-1.1327	0.0777	1	11
3176	solution	0.7128	-0.0228	7	4
3174	solubility	0.5014	0.1342	2	4
3171	solid state physics	-0.6499	-0.1963	1	9
3168	solid	-0.801	0.0286	1	4
3163	solar cells	0.2198	0.274	3	4
3138	single wall nanotube	0.5883	0.5356	2	4
3137	single wall carbon nanotube	-0.1814	-0.0237	1	18
3130	single layer	-0.5597	0.0231	1	18
3123	simulation result	-0.6854	-0.1479	1	4
3109	silicon compound	-0.4769	0.0573	3	5
3108	silicon carbide	-0.5945	-0.0695	3	6
3106	silicon	-0.3695	0.0973	3	6
3103	silica	0.2089	0.0075	2	5
3092	si substrate	-0.4918	0.0507	3	5
3065	semiconductor quantum dots	0.0105	0.3331	2	13
3062	semiconductor junction	-0.6662	0.2816	3	4
3059	semiconductor	0.0202	0.4963	3	4
3049	sem	0.2467	-0.2637	4	7
3043	self assembly	0.4054	-0.0639	4	5
3034	selective detection	0.8276	0.4579	2	4
3017	scattering	-0.8773	0.1359	1	5
3016	scanning tunneling microscopy	-0.5619	-0.1996	1	9
3014	scanning electron microscopy	0.5661	-0.2147	4	19
2996	ru(0001)	-0.57	-0.3501	1	6
2990	room temperature	-0.3164	0.0456	3	16
2965	resonant tunneling	-1.0351	0.2343	1	5
2943	relativistic electron	-1.2087	0.0471	1	4
2933	reflection	-0.6784	0.3331	6	6
2890	raman spectroscopy	-0.1062	-0.0905	3	20
2889	raman spectrometry	0.5392	0.3508	2	9
2884	raman scattering	-0.3082	0.0493	1	9
2869	quenching	0.4091	0.4915	2	4
2852	quantum theory	-0.8459	0.0727	1	11
2850	quantum optic	-1.0055	0.2446	1	4
2847	quantum mechanics	-0.174	0.4416	1	5
2839	quantum electronic	-0.9791	0.242	1	7
2835	quantum dot	0.3363	0.587	2	6
2830	quantum chemistry	-0.7282	0.0289	1	8
2775	processable	0.16	0.2869	3	6
2770	probability density function	-0.692	-0.254	1	5
2768	priority journal	0.671	0.4164	2	19
2751	potential energy	-0.5235	-0.4618	1	4
2749	potential application	-0.0177	0.0432	1	17
2711	polymer	0.3534	-0.0216	4	8
2689	polarization	-0.652	0.3309	6	5
2677	platinum	0.4239	-0.4271	5	8
2658	physisorption	-0.1501	-0.4013	1	6
2616	phenols	0.9101	-0.1102	2	5
2611	phase transition	-0.2443	-0.1824	1	4
2609	phase interface	-0.0506	-0.1493	1	5
2601	ph	0.9439	0.2513	2	5
2574	particle size	0.3375	0.1821	2	14
2553	oxygen	0.3174	-0.251	5	13
2549	oxide nanosheet	0.4554	-0.118	4	4
2546	oxide film	0.0915	0.0703	3	9
2543	oxide	0.7251	0.3605	2	16
2538	oxidation reduction	0.8498	0.2184	2	6
2535	oxidation	0.6083	-0.1259	5	9
2516	organic polymer	0.1376	-0.0044	4	5
2509	organic compound	0.4357	0.0238	2	6
2505	organic acid	0.8853	0.0954	2	9
2500	orbitals	-0.6933	-0.3122	1	4
2495	optoelectronic device	-0.4122	0.508	6	6
2485	optical property	-0.3455	0.3089	6	9
2427	number of layer	-0.5162	-0.0524	1	4
2426	nucleic acid	0.5194	0.5158	2	4
2400	nonlinear optic	-0.5608	0.6045	6	5
2368	non equilibrium green's function	-0.9564	0.1156	1	4
2355	nitrogen	0.3139	-0.3871	5	5
2325	naphthalene	0.3363	-0.0311	2	5
2323	nanotubes. carbon	0.4485	0.3983	2	8
2322	nanotubes	0.0491	-0.2188	4	14
2319	nanotechnology	-0.0599	0.2416	3	22
2317	nanostructured material	0.1924	0.1679	2	28
2316	nanostructure	-0.03	0.0565	1	31
2314	nanosheet	0.4934	-0.3129	5	15
2308	nanoribbons	-0.7011	0.0621	1	20
2306	nanopore	-0.0297	0.1911	2	6
2304	nanoparticle	0.6458	-0.0578	5	16
2302	nanomaterial	0.3174	0.341	2	19
2292	nanoelectronic	-0.5365	0.2952	3	6
2282	nanocomposite	0.5121	-0.3116	4	25
2265	nano scale	-0.3933	-0.012	1	4
2261	nano material	0.108	0.0565	2	4
2246	n doped	0.0801	-0.3834	5	5
2243	multiwalled carbon nanotubes	0.2451	-0.2574	4	9
2235	multi walled carbon nanotube	0.5502	-0.1257	2	4
2210	monolayer	-0.5891	-0.0143	1	15
2204	molecule	-0.0697	-0.0075	1	12
2184	molecular dynamic	-0.4715	-0.383	1	15
2181	molecular conformation	0.0061	0.082	3	13
2167	models. chemical	-0.4764	0.0396	1	7
2149	microstructure	0.0346	-0.5893	4	6
2128	methodology	0.2781	0.3751	2	13
2121	methane	-0.0586	-0.4149	3	6
2110	metallic compound	0.3219	-0.188	5	4
2089	metal	0.0017	-0.1054	5	8
2077	mesfet device	-0.6652	0.3928	3	5
2061	mechanical property	-0.0112	-0.5011	4	17
2047	matrix	0.1555	-0.4337	4	8
2045	mathematical model	-0.4425	0.1079	1	6
2043	materials testing	0.0549	0.2703	3	12
2027	magnetoresistance	-1.0394	0.0291	1	4
2021	magnetism	-0.198	0.0288	1	10
2010	magnetic property	-0.5266	-0.368	1	7
2007	magnetic moment	-0.9152	-0.3166	1	12
2005	magnetic material	-0.4313	-0.0196	1	8
1998	magnetic field effect	-1.0752	0.0625	1	8
1997	magnetic field	-0.8825	0.1322	1	11
1982	macromolecule	-0.0915	-0.1019	3	10
1981	macromolecular substance	-0.2193	-0.189	3	10
1967	low temperature	-0.4156	-0.0891	1	5
1930	lithium ion battery	0.5979	-0.844	5	5
1929	lithium compound	0.6237	-0.8739	5	6
1928	lithium battery	0.5719	-0.8361	5	6
1926	lithium	0.4491	-0.8166	5	8
1921	liquid phase	0.1721	-0.1765	4	4
1899	light transmission	-0.3831	0.3862	6	4
1890	light absorption	-0.3472	0.386	6	5
1836	ketone	0.6343	-0.1565	5	5
1817	ionization of liquid	0.6551	-0.01	2	5
1814	ionic liquid	0.625	-0.13	5	5
1805	ion exchange	0.0693	-0.1313	1	4
1799	ion	0.3479	-0.2669	5	9
1770	intercalation compound	-0.123	-0.4331	4	4
1747	infrared spectroscopy	0.6611	0.1942	2	5
1725	in situ	0.1722	-0.1862	4	13
1718	impurity	-0.8124	-0.0946	1	4
1704	hydrophobicity	0.5301	0.1365	2	6
1697	hydrophilicity	0.6721	0.1672	2	5
1692	hydrogenation	-0.2626	-0.4482	1	7
1687	hydrogen storage	-0.0966	-0.6935	1	6
1679	hydrogen ion concentration	0.9832	0.2635	2	5
1676	hydrogen bonding	0.3879	-0.0618	4	8
1673	hydrogen adsorption	-0.2976	-0.6442	1	4
1672	hydrogen	-0.076	-0.3873	1	21
1660	hybrid material	0.4011	-0.1541	5	7
1656	hummers method	0.4664	-0.3077	4	5
1648	honeycomb structure	-0.778	-0.1418	1	5
1647	honeycomb lattice	-0.8298	-0.0241	1	5
1622	high temperature	-0.2399	-0.2595	3	6
1611	high resolution transmission electron microscopy	0.3058	-0.3441	5	7
1602	high quality	-0.2323	-0.0954	3	7
1557	half metal	-0.9876	-0.3243	1	5
1542	growth mechanism	-0.2415	-0.4285	3	5
1535	green's function	-1.0878	0.0888	1	18
1528	graphitization	-0.142	-0.3198	3	5
1521	graphite oxide	0.3727	-0.349	4	16
1511	graphite	0.1204	0.1684	2	182
1501	graphene sheet	-0.2701	-0.2087	1	56
1497	graphene plane	-0.4273	-0.2598	1	4
1495	graphene oxide	0.5559	0.1135	2	11
1493	graphene nanoribbons	-0.7845	0.0323	1	57
1489	graphene nanoribbon	-0.8897	0.2194	1	19
1484	graphene layer	-0.4097	-0.0823	1	31
1477	graphene device	-0.6463	0.2479	3	4
1473	graphene	-0.151	0.0215	1	301
1454	glassy carbon electrode	1.2338	0.1562	2	4
1415	gas adsorption	-0.0373	-0.4966	1	7
1408	gallium alloy	-0.5221	0.2567	3	4
1402	functionalized	0.2639	-0.0193	4	20
1396	functional group	0.3459	-0.2089	5	5
1391	fullerenes	-0.072	-0.0635	1	8
1361	fracture	-0.4171	-0.6959	1	4
1359	fourier transform infrared spectroscopy	0.6917	-0.2695	4	8
1327	first principles study	-0.7069	-0.4578	1	8
1319	first principles calculation	-0.7168	-0.3815	1	18
1316	first principle	-0.6717	-0.378	1	9
1304	film preparation	0.2118	-0.1266	4	7
1288	field emission	-0.244	0.0025	3	4
1286	field effect transistor	-0.5201	0.3691	3	12
1280	ferromagnetism	-0.985	-0.1424	1	7
1276	ferromagnetic material	-1.0057	-0.0763	1	4
1266	fermion	-0.9331	0.0476	1	6
1264	fermi energy	-1.0358	0.0962	1	10
1244	facile method	0.3037	-0.2509	4	4
1241	external magnetic field	-0.5537	0.0703	1	4
1192	epitaxial growth	-0.5668	-0.082	3	5
1171	energy transfer	0.1679	0.5244	2	4
1165	energy gap	-0.7537	-0.0361	1	9
1125	electronic structure	-0.6665	-0.2769	1	31
1123	electronic property	-0.6209	-0.1371	1	28
1121	electronic equipment	-0.0126	0.1689	3	4
1117	electronic device	-0.4841	0.0711	3	4
1111	electronic and magnetic property	-0.8742	-0.4272	1	4
1110	electronic	-0.0069	0.5253	3	4
1102	electron transport property	-0.3917	0.0576	1	4
1101	electron transport	0.1084	0.3581	2	14
1099	electron transition	0.332	0.2074	2	9
1084	electron mobility	-0.6746	0.1758	3	4
1083	electron microscopy	0.3317	-0.2668	5	4
1073	electron energy level	-0.7127	-0.0195	1	4
1061	electron beam	-0.4117	0.1085	1	4
1059	electron	-0.4059	0.1243	1	13
1053	electrolytic reduction	0.7731	-0.5119	5	4
1052	electrolytic capacitor	0.6342	-0.64	5	6
1050	electrolysis	0.6933	-0.4689	5	4
1046	electrode material	0.6078	-0.5073	5	5
1044	electrode	0.6606	0.0012	5	15
1041	electrochemistry	0.8184	0.1175	2	16
1038	electrochemical technique	1.0518	0.2871	2	5
1028	electrochemical property	0.691	-0.5443	5	7
1026	electrochemical performance	0.8113	-0.7131	5	5
1018	electrochemical electrode	0.9277	-0.2872	5	8
1008	electrochemical analysis	1.0544	0.2664	2	5
1003	electrocatalysis	1.0342	-0.2438	5	6
989	electrical conductivity	0.2023	-0.3809	4	13
984	electric resistance	-0.5182	0.1455	3	8
975	electric field	-0.6469	0.1664	1	14
971	electric current	-0.341	0.3433	1	6
969	electric conductivity	0.1141	-0.1173	4	26
942	edge state	-1.0002	-0.0987	1	10
930	dynamic	-0.5199	-0.0953	1	4
910	doping (additives)	0.0986	-0.3426	5	11
882	dispersion	0.0729	-0.1591	4	7
858	dirac point	-0.8732	0.1324	1	13
857	dirac fermion	-1.0903	0.1403	1	6
836	differential equation	-0.9732	0.0528	1	10
810	detection limit	0.9875	0.3676	2	4
800	density of state	-0.8858	-0.0735	1	4
796	density functional theory calculation	-0.4899	-0.4484	1	7
795	density functional theory	-0.5436	-0.3544	1	35
778	defect	-0.5806	-0.2524	1	5
755	cyclic voltammetry	1.0121	-0.2525	5	5
744	current voltage characteristic	-0.7279	0.289	3	4
738	cubic boron nitride	-0.3648	-0.2378	1	4
730	crystallization	0.0719	-0.3696	4	11
656	controlled study	0.8607	0.5249	2	12
638	conformation	0.0404	0.1247	3	13
630	conductive film	0.065	0.0644	3	4
620	conductance	-0.0291	0.5423	2	4
617	concentration (process)	-0.3407	-0.2065	1	4
613	computer simulation	-0.6166	-0.0542	1	14
595	composite film	0.448	-0.1234	4	6
592	composite	0.4569	-0.5385	4	4
587	comparative study	0.1865	0.0917	2	6
528	chemistry	0.3617	0.364	2	25
527	chemisorption	-0.3217	-0.4698	1	6
522	chemical vapor deposition	-0.2785	-0.0506	3	11
520	chemical structure	0.397	0.2723	2	11
518	chemical sensor	0.1654	0.3032	3	4
516	chemical reduction	0.4021	-0.1875	4	5
514	chemical reaction	0.643	-0.0137	2	4
507	chemical modification	0.3678	0.1843	2	7
506	chemical model	-0.5387	0.018	1	6
504	chemical interaction	0.4977	0.1192	2	4
495	chemical bond	-0.0821	-0.2614	1	5
487	charge transfer	-0.0259	-0.074	1	5
447	catalytic oxidation	0.7309	-0.4624	5	4
433	catalyst	0.531	-0.4625	5	9
432	catalysis	0.7464	-0.0858	5	13
430	carrier mobility	-0.5257	0.1797	3	4
421	carbonization	0.4899	-0.5756	5	6
405	carbon nanotubes	-0.0708	-0.087	3	58
402	carbon nanotube	0.3304	0.2739	2	13
395	carbon nanofiber	0.2353	-0.5601	5	4
383	carbon film	-0.1311	-0.2126	3	4
380	carbon fiber	0.1758	-0.4554	4	5
372	carbon based	-0.2112	0.1017	3	6
371	carbon atom	-0.4869	-0.2441	1	16
367	carbon	0.3082	-0.0339	2	44
364	capacitor	0.5611	-0.568	5	9
360	capacitance	0.1951	-0.2953	5	7
343	building block	-0.228	0.0364	1	4
317	boron	-0.4519	-0.3621	1	6
304	bond length	-0.6847	-0.3312	1	4
285	biosensor	0.7658	0.5027	2	7
284	biosensing technique	0.9758	0.5855	2	5
260	binding energy	-0.4117	-0.3444	1	9
256	bilayer graphene	-0.8776	0.0641	1	4
255	bilayer	-0.8087	0.0352	1	10
230	bandgap	-0.7949	-0.0589	1	11
228	band structure	-0.9068	-0.0947	1	6
221	ball milling	0.159	-0.7634	4	5
210	atomic spectroscopy	-0.0198	-0.1257	3	8
200	atomic force microscopy	0.1593	0.081	3	18
187	atom	-0.5519	-0.3448	1	24
180	artificial graphite	0.0257	-0.3943	5	4
174	aromatic compound	0.6921	-0.1387	7	6
173	armchair graphene nanoribbons	-1.0419	-0.122	1	4
164	aqueous solution	0.8076	0.1314	2	11
137	anode material	0.6544	-0.8086	5	4
136	anode	0.6375	-0.8296	5	5
133	annealing	-0.1912	-0.226	3	4
122	andreev reflection	-1.22	0.0807	1	6
119	analytical expression	-0.966	0.1066	1	4
111	amorphous carbon	-0.0966	-0.41	3	4
104	amine	0.888	0.0541	2	4
102	amide	0.6715	0.0041	4	4
97	aluminum	-0.0689	-0.304	4	5
65	adsorption	0.3548	-0.1259	7	28
59	adsorbate	-0.5351	-0.1386	1	4
30	absorption	-0.0309	0.3803	6	14
1	(pl) property	-0.6871	-0.3212	1	4
99998		-1.3828	0.0142	1	0.1
99997		1.5958	0.0242	3	0.1
99996		0.7557	-1.0909	5	0.1
99995		-0.7799	1.322	6	0.1