نتایج جستجو برای: short circuit current density

تعداد نتایج: 1623811  

In this paper, a thin-film InP-based solar cell designed and simulated. The proposed InP solar cell has a periodic array of plasmonic back-reflector, which consists of a silver layer and two silver nanowires. The indium tin oxide (ITO) layer also utilized as an anti-reflection coating (ARC) layer on top. The design creates a light-trapping structure by using a plasmonic back-reflector and an an...

Journal: :Systems and Technologies 2018

Power system protection at transmission and distribution levels based on overcurrent relays is essential based on their properties such as detection, stability, high speed, backup and error correction accuracy. Since distributed generation sources are connected to the power grid, they not only increase the short circuit level of the grid, but also disrupt the set point of main and backup relays...

2014
Derek Padilla Guangmei Zhai Alison J. Breeze Daoli Zhang Glenn B. Alers Sue A. Carter

Photovoltaic performance is shown to depend on ligand capping on PbS nanoparticle solar cells by varying the temperature between 140K and 350K. The thermal response of open‐circuit voltage, short‐circuit current density, fill‐factor and shunt resistance varies between the ligands. A large increase in short‐circuit current density at low temperatures is observed for 1,2‐ethanedi...

The present study was conducted to investigate current density of0.3 0.7 Al Ga N/ GaN multiple quantum well solar cell (MQWSC) under hydrostaticpressure. The effects of hydrostatic pressure were taken into account to measureparameters of 0.3 0.7 Al Ga N/ GaN MQWSC, such as interband transition energy, electronholewave functions, absorption coefficient, and dielectric con...

Increasing the short circuit current due to the penetration of distributed generations (DGs) in various voltage levels and meshed topology is a basic problem in power systems. Using fault current limiter (FCL) is an efficient approach to mitigate the exceeded short circuit levels. In this paper, a new approach is presented for multiple FCLs locating to decrease short circuit levels in meshed ne...

2015
Myung-Dong Ko Taiuk Rim Kihyun Kim M. Meyyappan Chang-Ki Baek

Improving the efficiency of solar cells through novel materials and devices is critical to realize the full potential of solar energy to meet the growing worldwide energy demands. We present here a highly efficient radial p-n junction silicon solar cell using an asymmetric nanowire structure with a shorter bottom core diameter than at the top. A maximum short circuit current density of 27.5 mA/...

Journal: :مهندسی بیوسیستم ایران 0
کامبیز حسین پناهی گروه مهندسی بیوسیستم- دانشکده کشاورزی- دانشگاه فردوسی مشهد. محمد حسین عباسپور فرد گروه مهندسی بیوسیستم- دانشکده کشاورزی- دانشگاه فردوسی مشهد جواد فیضی گروه شیمی مواد غذایی- پژوهشکده صنایع غذایی محمود رضا گلزاریان گروه مهندسی بیوسیستم- دانشکده کشاورزی- دانشگاه فردوسی مشهد

natural dye extract of walnut shell, was extracted using an ultrasonic processor and purified by hot saponification method, has been studied as a novel sensitizing dye to fabricate tio2 nanoparticles based dye sensitized solar cells (dssc). the extract was characterized using uv–vis absorption spectroscopy and fourier transform infrared (ftir) employed to identify the anchoring groups in walnut...

Journal: :Microelectronics Reliability 2014
Kazunori Hasegawa Kenichi Yamamoto Hidetaro Yoshida Kota Hamada Masanori Tsukuda Ichiro Omura

This paper proposes a new short-circuit protection method for an IGBT. The proposed method is characterized by detecting not only gate charge but also gate voltage of the IGBT. This results in a shorter protection time, compared to the previous method that detects only the gate charge. A real-time monitoring system using an FPGA, A/D converters, and a D/A converter is used for the proposed prot...

2012
RamNarayan Chauhan C. Singh R. S. Anand Jitendra Kumar Ram Narayan Chauhan Bhushan Sopori

Solar cell fabrication on flexible thin plastic sheets needs deposition of transparent conducting anode layers at low temperatures. ITO thin films are deposited on glass by RF sputtering at substrate temperature of 70◦C and compare their phase, morphology, optical, and electrical properties with commercial ITO. The films contain smaller nanocrystallites in (222) preferred orientation and exhibi...

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