Class information for:
Level 1: INGAN//EFFICIENCY DROOP//LIGHT EMITTING DIODES

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
344 3613 22.3 83%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
178 3       GAN//PHYSICS, APPLIED//GALLIUM NITRIDE 57874
20 2             GAN//GALLIUM NITRIDE//NITRIDES 36496
344 1                   INGAN//EFFICIENCY DROOP//LIGHT EMITTING DIODES 3613

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 INGAN authKW 1243359 10% 40% 367
2 EFFICIENCY DROOP authKW 933289 4% 85% 130
3 LIGHT EMITTING DIODES authKW 227275 9% 8% 318
4 OPTOELECT MAT TECHNOL address 224443 3% 27% 97
5 ELECTRON BLOCKING LAYER authKW 166369 1% 62% 32
6 INGAN GAN MULTIPLE QUANTUM WELLS authKW 128481 1% 72% 21
7 INGAN GAN authKW 113576 1% 33% 41
8 ELECTRON BLOCKING LAYER EBL authKW 105616 0% 83% 15
9 LIGHT EMITTING DIODES LEDS authKW 103350 2% 15% 82
10 QUANTUM WELLS authKW 92426 6% 5% 202

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Physics, Applied 36485 64% 0% 2296
2 Physics, Condensed Matter 6750 24% 0% 866
3 Materials Science, Multidisciplinary 3391 24% 0% 859
4 Optics 2655 12% 0% 451
5 Engineering, Electrical & Electronic 1400 14% 0% 500
6 Crystallography 1083 5% 0% 191
7 Physics, Multidisciplinary 726 8% 0% 295
8 Nanoscience & Nanotechnology 389 4% 0% 162
9 Materials Science, Coatings & Films 141 2% 0% 69
10 Microscopy 124 1% 0% 27

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 OPTOELECT MAT TECHNOL 224443 3% 27% 97
2 NITRIDE SEMICOND 71589 1% 31% 27
3 MAT E ORAT STRUCT STUDIES CEMES 59148 0% 100% 7
4 ENGN TECHNOL LED SI SUBSTRATE 52891 0% 52% 12
5 RD SEMICOND LIGHTING 52803 0% 63% 10
6 FUTURE CHIPS CONSTELLAT 51935 0% 36% 17
7 CHINA BRANCH 49157 0% 73% 8
8 DEV SEMICOND LIGHTING 48693 0% 41% 14
9 NANOPHOTON FUNCT MAT DEVICES 47434 1% 14% 41
10 LUMINOUS EXCELLENCE SEMICOND LIGHTING DISPL 43955 1% 19% 27

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 MRS INTERNET JOURNAL OF NITRIDE SEMICONDUCTOR RESEARCH 56861 2% 12% 58
2 APPLIED PHYSICS LETTERS 40171 20% 1% 725
3 PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 12625 5% 1% 175
4 JOURNAL OF DISPLAY TECHNOLOGY 10897 1% 3% 41
5 JOURNAL OF CRYSTAL GROWTH 8858 5% 1% 183
6 JOURNAL OF APPLIED PHYSICS 7514 9% 0% 315
7 PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 6982 4% 1% 129
8 APPLIED PHYSICS EXPRESS 5929 1% 1% 51
9 SEMICONDUCTORS 5355 2% 1% 66
10 SUPERLATTICES AND MICROSTRUCTURES 4075 2% 1% 56

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 INGAN 1243359 10% 40% 367 Search INGAN Search INGAN
2 EFFICIENCY DROOP 933289 4% 85% 130 Search EFFICIENCY+DROOP Search EFFICIENCY+DROOP
3 LIGHT EMITTING DIODES 227275 9% 8% 318 Search LIGHT+EMITTING+DIODES Search LIGHT+EMITTING+DIODES
4 ELECTRON BLOCKING LAYER 166369 1% 62% 32 Search ELECTRON+BLOCKING+LAYER Search ELECTRON+BLOCKING+LAYER
5 INGAN GAN MULTIPLE QUANTUM WELLS 128481 1% 72% 21 Search INGAN+GAN+MULTIPLE+QUANTUM+WELLS Search INGAN+GAN+MULTIPLE+QUANTUM+WELLS
6 INGAN GAN 113576 1% 33% 41 Search INGAN+GAN Search INGAN+GAN
7 ELECTRON BLOCKING LAYER EBL 105616 0% 83% 15 Search ELECTRON+BLOCKING+LAYER+EBL Search ELECTRON+BLOCKING+LAYER+EBL
8 LIGHT EMITTING DIODES LEDS 103350 2% 15% 82 Search LIGHT+EMITTING+DIODES+LEDS Search LIGHT+EMITTING+DIODES+LEDS
9 QUANTUM WELLS 92426 6% 5% 202 Search QUANTUM+WELLS Search QUANTUM+WELLS
10 GAINN 90858 1% 49% 22 Search GAINN Search GAINN

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 VERZELLESI, G , SAGUATTI, D , MENEGHINI, M , BERTAZZI, F , GOANO, M , MENEGHESSO, G , ZANONI, E , (2013) EFFICIENCY DROOP IN INGAN/GAN BLUE LIGHT-EMITTING DIODES: PHYSICAL MECHANISMS AND REMEDIES.JOURNAL OF APPLIED PHYSICS. VOL. 114. ISSUE 7. P. - 76 90% 103
2 ZHANG, ZH , ZHANG, YH , BI, WG , DEMIR, HV , SUN, XW , (2016) ON THE INTERNAL QUANTUM EFFICIENCY FOR INGAN/GAN LIGHT-EMITTING DIODES GROWN ON INSULATING SUBSTRATES.PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE. VOL. 213. ISSUE 12. P. 3078 -3102 125 78% 0
3 CHO, J , SCHUBERT, EF , KIM, JK , (2013) EFFICIENCY DROOP IN LIGHT-EMITTING DIODES: CHALLENGES AND COUNTERMEASURES.LASER & PHOTONICS REVIEWS. VOL. 7. ISSUE 3. P. 408-421 70 82% 99
4 PIPREK, J , (2010) EFFICIENCY DROOP IN NITRIDE-BASED LIGHT-EMITTING DIODES.PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE. VOL. 207. ISSUE 10. P. 2217 -2225 48 87% 336
5 DAMILANO, B , GIL, B , (2015) YELLOW-RED EMISSION FROM (GA,IN)N HETEROSTRUCTURES.JOURNAL OF PHYSICS D-APPLIED PHYSICS. VOL. 48. ISSUE 40. P. - 103 53% 8
6 ZHAO, HP , LIU, GY , ZHANG, J , POPLAWSKY, JD , DIEROLF, V , TANSU, N , (2011) APPROACHES FOR HIGH INTERNAL QUANTUM EFFICIENCY GREEN INGAN LIGHT-EMITTING DIODES WITH LARGE OVERLAP QUANTUM WELLS.OPTICS EXPRESS. VOL. 19. ISSUE 14. P. A991 -A1007 56 62% 348
7 SHIM, JI , (2013) ACTIVE REGION PART B. INTERNAL QUANTUM EFFICIENCY.III-NITRIDE BASED LIGHT EMITTING DIODES AND APPLICATIONS. VOL. 126. ISSUE . P. 153 -195 77 79% 0
8 AVRUTIN, V , HAFIZ, SDA , ZHANG, F , OZGUR, U , MORKOC, H , MATULIONIS, A , (2013) INGAN LIGHT-EMITTING DIODES: EFFICIENCY-LIMITING PROCESSES AT HIGH INJECTION.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 31. ISSUE 5. P. - 52 90% 19
9 CALCIATI, M , GOANO, M , BERTAZZI, F , VALLONE, M , ZHOU, XY , GHIONE, G , MENEGHINI, M , MENEGHESSO, G , ZANONI, E , BELLOTTI, E , ET AL (2014) CORRELATING ELECTROLUMINESCENCE CHARACTERIZATION AND PHYSICS-BASED MODELS OF INGAN/GAN LEDS: PITFALLS AND OPEN ISSUES.AIP ADVANCES. VOL. 4. ISSUE 6. P. - 69 69% 7
10 DAVIES, MJ , HAMMERSLEY, S , MASSABUAU, FCP , DAWSON, P , OLIVER, RA , KAPPERS, MJ , HUMPHREYS, CJ , (2016) A COMPARISON OF THE OPTICAL PROPERTIES OF INGAN/GAN MULTIPLE QUANTUM WELL STRUCTURES GROWN WITH AND WITHOUT SI-DOPED INGAN PRELAYERS.JOURNAL OF APPLIED PHYSICS. VOL. 119. ISSUE 5. P. - 44 86% 2

Classes with closest relation at Level 1


Rank Class id link
1 4181 SEMIPOLAR//NONPOLAR//A PLANE GAN
2 16102 INGAN QUANTUM DOTS//SPMM//GAN ALN QUANTUM DOTS
3 4053 ALGAN//SEMICONDUCTING ALUMINUM COMPOUNDS//ALINGAN
4 16944 ALINN//INALN//AL1 XINXN
5 2345 LIGHT EXTRACTION EFFICIENCY//LIGHT EMITTING DIODE LED//LIGHT EXTRACTION
6 595 GAN//MRS INTERNET JOURNAL OF NITRIDE SEMICONDUCTOR RESEARCH//YELLOW LUMINESCENCE
7 3979 INN//INDIUM NITRIDE//INN PROJECT
8 34897 ALGAN GAN HBT//P INGAN//COMMON EMITTER
9 3942 GAN//METALORGANIC CHEMICAL VAPOR DEPOSITION//NITRIDES
10 10237 ETUD RECH MAT//GALLIUM NITRIDE//RECH PROPRIETES MAT NOUVEAUX

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