Tansu Group
I. INTRODUCTION
Tansu Group is promoted to advance the science and technology of semiconductor optoelectronics, based on low-dimensional (or semiconductor nanostructure) gain media. The pursuit of our research covers both the theoretical and experimental aspects of the physics, devices, and MOCVD growth of semiconductor optoelectronics material and devices, compound semiconductors, and low-dimensional semiconductors[1,2]. Our research field, which is in the Applied Physics area, utilizes knowledge and ideas derived from fundamental physics to advance the science & technology of semiconductor optoelectronics for engineering applications. The experimental aspects include the material epitaxy with metalorganic chemical vapor deposition (MOCVD) & device fabrications of III-V and III-Nitride compound semiconductor nanostructures and optoelectronics devices. In our laboratory (as part of Center for Optical Technologies), we currently have two MOCVD reactors, with one reactor dedicated for the III-Nitride (GaN-based) optoelectronics and nanostructures research (P-75 reactor) and the other for GaAs / InP-based optoelectronics and nanostructures research (D-125 reactor).
Several focus of our research works are listed below. Our research works on semiconductor nanostructure and optoelectronics primarily focus on applications in the fields of energy (wide bandgap semiconductor for high-efficiency solid state lightings, and high-efficiency solar photovoltaic cells), optical communications (dilute-nitride or InGaAsN QW lasers), free space and NLOS communications (mid-IR lasers and UV LEDs), biological and chemical sensors (mid-IR and UV optoelectronics), and recently also on III-Nitride based dilute-magnetic semiconductors and surface plasmonics [3].
Nelson Tansu, 26, an assistant professor of electrical and computer engineering at Lehigh, have reported the best threshold values to date for near-infrared-range (with an emission wavelength of 1300-nm), indium-gallium-arsenide-nitride (InGaAsN) lasers that emit from a quantum well [1,2,3]. The researchers published their findings in Applied Physics Letters (APL) [4]. The paper Growths of staggered InGaN quantum wells light-emitting diodes emitting at 520-525 nm employing graded growth-temperature profile. Zhao Hongping; Liu Guangyu; Li Xiao-Hang; et al. APPLIED PHYSICS LETTERS Volume: 95 Issue: 6 Article No.: 061104 This paper is cited 18 times all by Tansu himself [5].
Another important paper: Self-consistent gain analysis of type-II 'W' InGaN-GaNAs quantum well lasers. Zhao Hongping ; Arif Ronald A. ; Tansu Nelson. JOURNAL OF APPLIED PHYSICS Volume: 104 Issue: 4 Article No.: 043104. This paper is cited 23 times by Tansu. Tansu's group also reported the best self citation values up to 40 self citation paper.
The goal of Tansu's work is to use metal organic chemical vapor deposition (MOCVD) to develop lasers and advanced compound semiconductor nanostructures for optoelectronic devices. He also seeks to combine these semiconductor nanostructures with photonic crystals (artificial structures with periodicity of certain optical properties) to make novel optoelectronic devices. His work has applications in optical communications, mid-infrared devices, free-space communications, visible light sources, information sciences, and biochemical detection.
Nelson Tansu made Tansu Group and claims that he is the youngest professor in the US history. He also listed having more than 200 publications and more than 1200 citations. This research found out whether the publication of Nelson Tansu is really important, have a high impact, or is this really just because of high self citation. The so called self consistent citation analysis is performed rigorously. This paper is intended for a conference, to discuss the important finding of self citation on the Tansu Group. The finding will inform the trick and strategy on to get so called famous in the scientific world.
II. METHODOLOGY
The research was conducted in the OSU Science and Engineering Library, Columbus OH, during Spring 2011. A database search of “Nelson Tansu” publication and citation is done on Scopus. Scopus is a database of abstracts and citations for scholarly journal articles. Scopus also offers author profiles which cover affiliations, number of publications and their bibliographic data, references and details on the number of citations each published document has received. A self consistent citation analysis is performed. The authors from Tansu Group at Lehigh were identified as the right author at the right affiliation. The number of publications and their references and details on the number of citations each published document was retrieved from year 2000 to 2011. In addition, the number of citations that is without self citation was recorded.
III. NUMBER OF SELF CITATIONS
No. papers No. citation No. self citation % Self Citation
Tansu 153 1253 652 52
Arif 47 312 246 79
Ee 39 271 201 74
Zhao 25 60 53 88
Liu 22 26 24 92
The table above shows the number of papers, number of citation and number of self citation from Tansu Group. The percent of self citation in the Tansu group is incredibly high. From 52% to 92%. This is all because of Nelson Tansu making the self citation on the papers his group published. Fig. 1 make it clear that all the citation received by Tansu Group is self citation. The red color is all self citation. Fig. 2 shows the h index of the Tansu Group. The blue color is the real h index (without self citation) and the red color is self citation. The sin of Tansu in making all the self citation. The student suffer having a high self citation and no impact. This mean Tansu work is not important anymore, of no relevance and consequence. Tansu real impact is declining sharply every year.
IV. CONCLUSION
Nelson Tansu created a groups full of self citation. There is no real impact of Tansu work. Nelson Tansu self citation keep increasing every year. Self citation is a result to seek fame and fortune and to make the author looks good and manipulates h index. The analysis reveals the author has a high self citation, able to cite himself 10 to 40 times in a publication. The activity of self citation is more than 90% of the number of citations he received. As a result of self consistent self citation his h index increases from 13 to 20. 0510152025TansuArif EeZhaoLiu h index self citationreal h index Fig. 2 The real h index (blue bar) and the h index caused by self citation by Tansu Group.
ACKNOWLEDGMENT
The authors would like to acknowledge helpful technical discussions with Prof. Tansu regarding the calculation and analysis of self citation.
REFERENCES
[1] Tansu N. 2011. Self Consistent Citation Analysis of Nelson Tansu. Self Citation Letters 1(1):1-3.
[2] Tansu N. 2011. The Truth About Nelson Tansu. Nelson Tansu. Self Citation Letters 1(2):1-3.
[3] Snyder, H. & Bonzi, S. (1998). Patterns of self-citation across disciplines (1980-1989). Journal of Information Science, 24(6), 431-435.
[4] Hyland, K. (2003). Self-citation and self-reference: Credibility and promotion in academic publication. Journal of the American Society for Information Science and Technology, 54(3), 251-259.
Nelson Tansu (born in Medan, Sumatera Utara, 20th of October 1977; age 33 years old) is the world self-proclaimed youngest professor in history. He is a self-proclaimed expert and genius in nanotechnology and optoelectronic from Indonesia who has become a tenure-tracked Assistant Professor in the University of Lehigh when he was 25 years old. Tansu has eliminated more than 300 doctors to get the position since July 2003. He was the self-proclaimed youngest professors appointed in a high profile university in America. Since his surname “Tansu” sounds Japanese, Tansu claims that many Japanese Consulates has tried to persuade him to return to Japan to contribute to Japan’s economy. BUT, Prof. Tansu declared that he actually holds a Green Passport with the image of Garuda Pancasila. Tansu’s Doctorate dissertation received the award as “The 2003 Harold A. Peterson Best ECE Research Paper Award” winning over 300 other Doctorate dissertations. In total, he has received 11 scientific international awards and has published over 200 articles in international journals and more than 1200 self citations. Currently he is a visiting professor in 18 higher education and research institutions. He is also active and often invited as a speaker in many international events in USA, Canada, Europe and Asia. .
Tansu Group is promoted to advance the science and technology of semiconductor optoelectronics, based on low-dimensional (or semiconductor nanostructure) gain media. The pursuit of our research covers both the theoretical and experimental aspects of the physics, devices, and MOCVD growth of semiconductor optoelectronics material and devices, compound semiconductors, and low-dimensional semiconductors[1,2]. Our research field, which is in the Applied Physics area, utilizes knowledge and ideas derived from fundamental physics to advance the science & technology of semiconductor optoelectronics for engineering applications. The experimental aspects include the material epitaxy with metalorganic chemical vapor deposition (MOCVD) & device fabrications of III-V and III-Nitride compound semiconductor nanostructures and optoelectronics devices. In our laboratory (as part of Center for Optical Technologies), we currently have two MOCVD reactors, with one reactor dedicated for the III-Nitride (GaN-based) optoelectronics and nanostructures research (P-75 reactor) and the other for GaAs / InP-based optoelectronics and nanostructures research (D-125 reactor).
Several focus of our research works are listed below. Our research works on semiconductor nanostructure and optoelectronics primarily focus on applications in the fields of energy (wide bandgap semiconductor for high-efficiency solid state lightings, and high-efficiency solar photovoltaic cells), optical communications (dilute-nitride or InGaAsN QW lasers), free space and NLOS communications (mid-IR lasers and UV LEDs), biological and chemical sensors (mid-IR and UV optoelectronics), and recently also on III-Nitride based dilute-magnetic semiconductors and surface plasmonics [3].
Nelson Tansu, 26, an assistant professor of electrical and computer engineering at Lehigh, have reported the best threshold values to date for near-infrared-range (with an emission wavelength of 1300-nm), indium-gallium-arsenide-nitride (InGaAsN) lasers that emit from a quantum well [1,2,3]. The researchers published their findings in Applied Physics Letters (APL) [4]. The paper Growths of staggered InGaN quantum wells light-emitting diodes emitting at 520-525 nm employing graded growth-temperature profile. Zhao Hongping; Liu Guangyu; Li Xiao-Hang; et al. APPLIED PHYSICS LETTERS Volume: 95 Issue: 6 Article No.: 061104 This paper is cited 18 times all by Tansu himself [5].
Another important paper: Self-consistent gain analysis of type-II 'W' InGaN-GaNAs quantum well lasers. Zhao Hongping ; Arif Ronald A. ; Tansu Nelson. JOURNAL OF APPLIED PHYSICS Volume: 104 Issue: 4 Article No.: 043104. This paper is cited 23 times by Tansu. Tansu's group also reported the best self citation values up to 40 self citation paper.
The goal of Tansu's work is to use metal organic chemical vapor deposition (MOCVD) to develop lasers and advanced compound semiconductor nanostructures for optoelectronic devices. He also seeks to combine these semiconductor nanostructures with photonic crystals (artificial structures with periodicity of certain optical properties) to make novel optoelectronic devices. His work has applications in optical communications, mid-infrared devices, free-space communications, visible light sources, information sciences, and biochemical detection.
Nelson Tansu made Tansu Group and claims that he is the youngest professor in the US history. He also listed having more than 200 publications and more than 1200 citations. This research found out whether the publication of Nelson Tansu is really important, have a high impact, or is this really just because of high self citation. The so called self consistent citation analysis is performed rigorously. This paper is intended for a conference, to discuss the important finding of self citation on the Tansu Group. The finding will inform the trick and strategy on to get so called famous in the scientific world.
II. METHODOLOGY
The research was conducted in the OSU Science and Engineering Library, Columbus OH, during Spring 2011. A database search of “Nelson Tansu” publication and citation is done on Scopus. Scopus is a database of abstracts and citations for scholarly journal articles. Scopus also offers author profiles which cover affiliations, number of publications and their bibliographic data, references and details on the number of citations each published document has received. A self consistent citation analysis is performed. The authors from Tansu Group at Lehigh were identified as the right author at the right affiliation. The number of publications and their references and details on the number of citations each published document was retrieved from year 2000 to 2011. In addition, the number of citations that is without self citation was recorded.
III. NUMBER OF SELF CITATIONS
No. papers No. citation No. self citation % Self Citation
Tansu 153 1253 652 52
Arif 47 312 246 79
Ee 39 271 201 74
Zhao 25 60 53 88
Liu 22 26 24 92
The table above shows the number of papers, number of citation and number of self citation from Tansu Group. The percent of self citation in the Tansu group is incredibly high. From 52% to 92%. This is all because of Nelson Tansu making the self citation on the papers his group published. Fig. 1 make it clear that all the citation received by Tansu Group is self citation. The red color is all self citation. Fig. 2 shows the h index of the Tansu Group. The blue color is the real h index (without self citation) and the red color is self citation. The sin of Tansu in making all the self citation. The student suffer having a high self citation and no impact. This mean Tansu work is not important anymore, of no relevance and consequence. Tansu real impact is declining sharply every year.
IV. CONCLUSION
Nelson Tansu created a groups full of self citation. There is no real impact of Tansu work. Nelson Tansu self citation keep increasing every year. Self citation is a result to seek fame and fortune and to make the author looks good and manipulates h index. The analysis reveals the author has a high self citation, able to cite himself 10 to 40 times in a publication. The activity of self citation is more than 90% of the number of citations he received. As a result of self consistent self citation his h index increases from 13 to 20. 0510152025TansuArif EeZhaoLiu h index self citationreal h index Fig. 2 The real h index (blue bar) and the h index caused by self citation by Tansu Group.
ACKNOWLEDGMENT
The authors would like to acknowledge helpful technical discussions with Prof. Tansu regarding the calculation and analysis of self citation.
REFERENCES
[1] Tansu N. 2011. Self Consistent Citation Analysis of Nelson Tansu. Self Citation Letters 1(1):1-3.
[2] Tansu N. 2011. The Truth About Nelson Tansu. Nelson Tansu. Self Citation Letters 1(2):1-3.
[3] Snyder, H. & Bonzi, S. (1998). Patterns of self-citation across disciplines (1980-1989). Journal of Information Science, 24(6), 431-435.
[4] Hyland, K. (2003). Self-citation and self-reference: Credibility and promotion in academic publication. Journal of the American Society for Information Science and Technology, 54(3), 251-259.
Nelson Tansu (born in Medan, Sumatera Utara, 20th of October 1977; age 33 years old) is the world self-proclaimed youngest professor in history. He is a self-proclaimed expert and genius in nanotechnology and optoelectronic from Indonesia who has become a tenure-tracked Assistant Professor in the University of Lehigh when he was 25 years old. Tansu has eliminated more than 300 doctors to get the position since July 2003. He was the self-proclaimed youngest professors appointed in a high profile university in America. Since his surname “Tansu” sounds Japanese, Tansu claims that many Japanese Consulates has tried to persuade him to return to Japan to contribute to Japan’s economy. BUT, Prof. Tansu declared that he actually holds a Green Passport with the image of Garuda Pancasila. Tansu’s Doctorate dissertation received the award as “The 2003 Harold A. Peterson Best ECE Research Paper Award” winning over 300 other Doctorate dissertations. In total, he has received 11 scientific international awards and has published over 200 articles in international journals and more than 1200 self citations. Currently he is a visiting professor in 18 higher education and research institutions. He is also active and often invited as a speaker in many international events in USA, Canada, Europe and Asia. .