D-Index & Metrics Best Publications

D-Index & Metrics

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Electronics and Electrical Engineering D-index 39 Citations 8,162 165 World Ranking 1978 National Ranking 836

Overview

What is he best known for?

The fields of study he is best known for:

  • Laser
  • Semiconductor
  • Optics

Joachim Piprek focuses on Optoelectronics, Laser, Optics, Diode and Semiconductor laser theory. His Gallium arsenide, Light-emitting diode and Semiconductor study, which is part of a larger body of work in Optoelectronics, is frequently linked to Voltage droop, bridging the gap between disciplines. The concepts of his Laser study are interwoven with issues in Photodetector and Heat flux.

Joachim Piprek works mostly in the field of Optics, limiting it down to topics relating to Wafer bonding and, in certain cases, Tunnel junction, Voltage drop and Lasing threshold. His Diode research integrates issues from Nitride and Leakage. He has researched Semiconductor laser theory in several fields, including Wavelength, Absorption and Infrared.

His most cited work include:

  • Origin of efficiency droop in GaN-based light-emitting diodes (1056 citations)
  • Efficiency droop in nitride‐based light‐emitting diodes (599 citations)
  • Nitride semiconductor devices : principles and simulation (360 citations)

What are the main themes of his work throughout his whole career to date?

Joachim Piprek spends much of his time researching Optoelectronics, Optics, Laser, Diode and Quantum well. His work carried out in the field of Optoelectronics brings together such families of science as Vertical-cavity surface-emitting laser and Optical amplifier. His Laser research focuses on Thermal and how it relates to Near and far field.

His Diode study incorporates themes from Leakage, Wide-bandgap semiconductor, Electron, Nitride and Quantum efficiency. The Quantum well study combines topics in areas such as Electronic band structure, Spontaneous emission, Computer simulation and Tunnel junction. In general Light-emitting diode, his work in Solid-state lighting is often linked to Voltage droop linking many areas of study.

He most often published in these fields:

  • Optoelectronics (80.91%)
  • Optics (46.89%)
  • Laser (45.23%)

What were the highlights of his more recent work (between 2012-2021)?

  • Optoelectronics (80.91%)
  • Diode (29.88%)
  • Laser (45.23%)

In recent papers he was focusing on the following fields of study:

Joachim Piprek mostly deals with Optoelectronics, Diode, Laser, Light-emitting diode and Quantum well. As part of his studies on Optoelectronics, Joachim Piprek frequently links adjacent subjects like Thermal. The various areas that Joachim Piprek examines in his Diode study include Auger effect, Semiconductor quantum wells, Leakage, Photon and Electrical efficiency.

His study with Laser involves better knowledge in Optics. The concepts of his Light-emitting diode study are interwoven with issues in Gallium nitride, Electron, Electroluminescence and Engineering physics. As part of the same scientific family, Joachim Piprek usually focuses on Quantum well, concentrating on Tunable laser and intersecting with Contrast, Device simulation, Electricity generation and Quantum dot laser.

Between 2012 and 2021, his most popular works were:

  • On the uncertainty of the Auger recombination coefficient extracted from InGaN/GaN light-emitting diode efficiency droop measurements (70 citations)
  • Origin of InGaN light-emitting diode efficiency improvements using chirped AlGaN multi-quantum barriers (56 citations)
  • How to decide between competing efficiency droop models for GaN-based light-emitting diodes (55 citations)

In his most recent research, the most cited papers focused on:

  • Laser
  • Semiconductor
  • Optics

His main research concerns Optoelectronics, Diode, Light-emitting diode, Wide-bandgap semiconductor and Laser. His work in the fields of Optoelectronics, such as Semiconductor laser theory, overlaps with other areas such as Voltage droop. Joachim Piprek combines subjects such as Optics and Semiconductor quantum wells with his study of Diode.

His research integrates issues of Photon and Electrical efficiency in his study of Light-emitting diode. His research in Laser intersects with topics in Power, Saturation, Thermal and Near and far field. His Quantum well research is multidisciplinary, incorporating elements of Charge carrier and Auger.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Origin of efficiency droop in GaN-based light-emitting diodes

Min-Ho Kim;Martin F. Schubert;Qi Dai;Jong Kyu Kim.
Applied Physics Letters (2007)

1490 Citations

Efficiency droop in nitride‐based light‐emitting diodes

Joachim Piprek.
Physica Status Solidi (a) (2010)

791 Citations

Semiconductor Optoelectronic Devices: Introduction to Physics and Simulation

Joachim Piprek.
(2003)

783 Citations

Nitride semiconductor devices : principles and simulation

Joachim Piprek.
(2007)

486 Citations

Physics of high-power InGaN/GaN lasers

J. Piprek;S. Nakamura.
IEE Proceedings - Optoelectronics (2002)

205 Citations

Long-wavelength vertical-cavity lasers and amplifiers

A. Karim;S. Bjorlin;J. Piprek;J.E. Bowers.
IEEE Journal of Selected Topics in Quantum Electronics (2000)

152 Citations

What limits the maximum output power of long-wavelength AlGaInAs/InP laser diodes?

J. Piprek;J.K. White;A.J. SpringThorpe.
IEEE Journal of Quantum Electronics (2002)

148 Citations

Material parameters of quaternary III - V semiconductors for multilayer mirrors at wavelength

Mustafa Güden;Joachim Piprek.
Modelling and Simulation in Materials Science and Engineering (1996)

143 Citations

Thermionic emission cooling in single barrier heterostructures

Ali Shakouri;Chris LaBounty;Joachim Piprek;Patrick Abraham.
Applied Physics Letters (1999)

140 Citations

Band gap bowing and refractive index spectra of polycrystalline AlxIn1−xN films deposited by sputtering

T. Peng;J. Piprek;G. Qiu;J. O. Olowolafe.
Applied Physics Letters (1997)

129 Citations

Editorial Boards

Optical and Quantum Electronics
(Impact Factor: 2.794)

Best Scientists Citing Joachim Piprek

John E. Bowers

John E. Bowers

University of California, Santa Barbara

Publications: 70

Hao-Chung Kuo

Hao-Chung Kuo

National Yang Ming Chiao Tung University

Publications: 68

Ali Shakouri

Ali Shakouri

Purdue University West Lafayette

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Steven P. DenBaars

Steven P. DenBaars

University of California, Santa Barbara

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Tien-Chang Lu

Tien-Chang Lu

National Yang Ming Chiao Tung University

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Larry A. Coldren

Larry A. Coldren

University of California, Santa Barbara

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Nelson Tansu

Nelson Tansu

University of Adelaide

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Shuji Nakamura

Shuji Nakamura

University of California, Santa Barbara

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Han-Youl Ryu

Han-Youl Ryu

Inha University

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James S. Speck

James S. Speck

University of California, Santa Barbara

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Jong Kyu Kim

Jong Kyu Kim

Pohang University of Science and Technology

Publications: 34

Hilmi Volkan Demir

Hilmi Volkan Demir

Bilkent University

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Jaehee Cho

Jaehee Cho

Jeonbuk National University

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Jinmin Li

Jinmin Li

Chinese Academy of Sciences

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Michael Kneissl

Michael Kneissl

Technical University of Berlin

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Xiao Wei Sun

Xiao Wei Sun

Southern University of Science and Technology

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Profile was last updated on December 6th, 2021.
Research.com Ranking is based on data retrieved from the Microsoft Academic Graph (MAG).
The ranking d-index is inferred from publications deemed to belong to the considered discipline.

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