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

Basic class information
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
1 4 PHYSICS, CONDENSED MATTER//PHYSICS, APPLIED//MATERIALS SCIENCE, MULTIDISCIPLINARY 2188495
195 3       GAN//GALLIUM NITRIDE//NITRIDES 53830
22 2             GAN//GALLIUM NITRIDE//INGAN 36458
369 1                   INGAN//EFFICIENCY DROOP//LIGHT EMITTING DIODES 3594

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INGAN authKW 1052394 9% 35% 339
2 EFFICIENCY DROOP authKW 986289 4% 83% 135
3 LIGHT EMITTING DIODES authKW 254158 9% 9% 340
4 OPTOELECT MAT TECHNOL address 234593 3% 27% 101
5 ALINGAN authKW 214552 1% 64% 38
6 ELECTRON BLOCKING LAYER authKW 180121 1% 62% 33
7 INGAN GAN MULTIPLE QUANTUM WELLS authKW 157801 1% 75% 24
8 LIGHT EMITTING DIODES LEDS authKW 129911 3% 16% 93
9 ELECTRON BLOCKING LAYER EBL authKW 118124 0% 84% 16
10 INGAN GAN authKW 112448 1% 31% 41

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Physics, Applied 35880 63% 0% 2272
2 Physics, Condensed Matter 6329 23% 0% 836
3 Materials Science, Multidisciplinary 3611 25% 0% 886
4 Optics 2451 12% 0% 435
5 Crystallography 1811 7% 0% 237
6 Engineering, Electrical & Electronic 1110 13% 0% 458
7 Physics, Multidisciplinary 756 8% 0% 297
8 Nanoscience & Nanotechnology 388 5% 0% 165
9 Microscopy 163 1% 0% 30
10 Materials Science, Coatings & Films 127 2% 0% 66

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTOELECT MAT TECHNOL 234593 3% 27% 101
2 NITRIDE SEMICOND 104353 1% 37% 32
3 DEV SEMICOND LIGHTING 64110 0% 46% 16
4 NANOPHOTON FUNCT MAT DEVICES 57010 1% 14% 45
5 RD SEMICOND LIGHTING 48699 0% 56% 10
6 CHINA BRANCH 46754 0% 67% 8
7 ELECT MAT DEVICES TIANJIN 45088 0% 86% 6
8 MAT E ORAT STRUCT STUDIES CEMES 45088 0% 86% 6
9 FUTURE CHIPS CONSTELLAT 41951 0% 32% 15
10 LUMINOUS EXCELLENCE SEMICOND LIGHTING DISPL 41191 1% 17% 27

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MRS INTERNET JOURNAL OF NITRIDE SEMICONDUCTOR RESEARCH 51138 2% 11% 54
2 APPLIED PHYSICS LETTERS 39467 20% 1% 711
3 JOURNAL OF CRYSTAL GROWTH 13945 6% 1% 226
4 PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 12322 5% 1% 172
5 JOURNAL OF DISPLAY TECHNOLOGY 9197 1% 3% 37
6 JOURNAL OF APPLIED PHYSICS 7168 8% 0% 304
7 PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 5466 3% 1% 113
8 SEMICONDUCTORS 5387 2% 1% 66
9 SUPERLATTICES AND MICROSTRUCTURES 4519 2% 1% 59
10 APPLIED PHYSICS EXPRESS 3761 1% 1% 41

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 INGAN 1052394 9% 35% 339 Search INGAN Search INGAN
2 EFFICIENCY DROOP 986289 4% 83% 135 Search EFFICIENCY+DROOP Search EFFICIENCY+DROOP
3 LIGHT EMITTING DIODES 254158 9% 9% 340 Search LIGHT+EMITTING+DIODES Search LIGHT+EMITTING+DIODES
4 ALINGAN 214552 1% 64% 38 Search ALINGAN Search ALINGAN
5 ELECTRON BLOCKING LAYER 180121 1% 62% 33 Search ELECTRON+BLOCKING+LAYER Search ELECTRON+BLOCKING+LAYER
6 INGAN GAN MULTIPLE QUANTUM WELLS 157801 1% 75% 24 Search INGAN+GAN+MULTIPLE+QUANTUM+WELLS Search INGAN+GAN+MULTIPLE+QUANTUM+WELLS
7 LIGHT EMITTING DIODES LEDS 129911 3% 16% 93 Search LIGHT+EMITTING+DIODES+LEDS Search LIGHT+EMITTING+DIODES+LEDS
8 ELECTRON BLOCKING LAYER EBL 118124 0% 84% 16 Search ELECTRON+BLOCKING+LAYER+EBL Search ELECTRON+BLOCKING+LAYER+EBL
9 INGAN GAN 112448 1% 31% 41 Search INGAN+GAN Search INGAN+GAN
10 INTERNAL QUANTUM EFFICIENCY 111607 1% 29% 44 Search INTERNAL+QUANTUM+EFFICIENCY Search INTERNAL+QUANTUM+EFFICIENCY

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.

Classes with closest relation at Level 1


rank cluster_id2 link
1 24799 INGAN SOLAR CELLS//INGAN//EA4423
2 21984 MAT SCI PL//NANOSIMULAT//FIST ORDER
3 4492 SEMIPOLAR//NONPOLAR//A PLANE GAN
4 16168 SPMM//GAN ALN QUANTUM DOTS//GAN DOTS
5 4510 ALGAN//SEMICONDUCTING ALUMINUM COMPOUNDS//ALN
6 14486 ALINN//RESONANT CAVITY LIGHT EMITTING DIODES//RESONANT CAVITY LIGHT EMITTING DIODE RCLED
7 1789 LIGHT EXTRACTION EFFICIENCY//LIGHT EXTRACTION//LIGHT EMITTING DIODES
8 662 GAN//HYDRIDE VAPOR PHASE EPITAXY//HVPE
9 3701 INN//INDIUM NITRIDE//SMART GREEN INNOVAT
10 1572 GAN//YELLOW LUMINESCENCE//MRS INTERNET JOURNAL OF NITRIDE SEMICONDUCTOR RESEARCH

Go to start page