A Novel InSb Photodiode Infrared Sensor Operating at Room Temperature

2005 ◽  
Vol 891 ◽  
Author(s):  
Koichiro Ueno ◽  
Edson Gomes Camargo ◽  
Yoshifumi Kawakami ◽  
Yoshitaka Moriyasu ◽  
Kazuhiro Nagase ◽  
...  
Keyword(s):  
Room Temperature ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Consumer Electronics ◽  
Electronic Equipment ◽  
Personal Computers ◽  
Infrared Sensor ◽  
Output Noise ◽  
In Series ◽  
Photovoltaic Mode

ABSTRACTA microchip-sized InSb photodiode based infrared sensor (InSb PDS) that operates at room temperature was developed. The InSb PDS consists of 700 photodiodes connected in series and consumes no power, because it works in photovoltaic mode to output an open-circuit voltage. The InSb PDS has a typical responsivity of 1,900 V/W and an output noise of 0.15 μV/Hz1/2. A detectivity of 2.8×108 cmHz1/2/W was obtained at 300 K. The InSb PDS has performance high enough for applications such as mobile electronic equipment, personal computers, and consumer electronics

Thermoelectric High Power Generating Module Made by n-Ba8AlxSi46-x Clathrate

2008 ◽  
Vol 1102 ◽  
Author(s):  
Shinji Munetoh ◽  
Makoto Arita ◽  
Hideki Makiyama ◽  
Teruaki Motooka
Keyword(s):  
Figure Of Merit ◽  
Open Circuit Voltage ◽  
Thermoelectric Module ◽  
Lithium Ion ◽  
Open Circuit ◽  
Electric Resistance ◽  
Thermoelectric Figure ◽  
Arc Melting ◽  
In Series ◽  
Specific Electric Resistance

AbstractWe have developed a new thermoelectric power-generating module composed of 72 pieces of n-type Ba8Al18Si28 clathrate elements made by arc melting. The Seebeck coefficient, specific electric resistance and thermal conductivity of Ba8Al18Si28 clathrate were 250 μV/K, 1.9 mΩcm and 3.1 W/mK at 500 °C, respectively, and the thermoelectric figure of merit (ZT) was 0.8. The new thermoelectric module was constructed using only n-type thermoelectric elements connected in series with hook-shaped electrodes. The open-circuit voltage of the module increased with hot-side temperature up to 1.8 V at 500 °C and generated 0.24 W. The module was successfully used to charge lithium-ion batteries for mobile phones.

scholarly journals Investigations on the Outdoor Performance Characteristics of Multicrystalline Silicon Solar Cell and Module

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
Sivakumar Parthasarathy ◽  
P. Neelamegam ◽  
P. Thilakan ◽  
N. Tamilselvan
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Critical Value ◽  
Standard Test ◽  
Open Circuit ◽  
Multicrystalline Silicon ◽  
In Series

Multicrystalline silicon solar cell and its module with 18 cells connected in series were mounted on an inclined rack tilted 12° South positioned at latitude of 12.0107° and longitude of 79.856°. Corresponding solar irradiance was measured using an optical Pyranometer. Measured irradiance, open circuit voltage (), and short circuit current () values were analyzed. values of both the cell and module were found saturated at above the critical value of illuminations which were different from each other. The integrated daily efficiency for the cell and module were ~10.25% and ~9.39%, respectively, that were less than their respective standard test condition’s value. The reasons for this drop in efficiencies were investigated and reported.

Efficient Cu(In, Ga)Se2 Based Solar Cells Prepared by Electrodeposition

2003 ◽  
Vol 763 ◽  
Author(s):  
D. Guimard ◽  
N. Bodereau ◽  
J. Kurdi ◽  
J.F. Guillemoles ◽  
D. Lincot ◽  
...  
Keyword(s):  
Band Gap ◽  
Room Temperature ◽  
Open Circuit Voltage ◽  
Spectral Response ◽  
Deposition Process ◽  
Open Circuit ◽  
Response Analysis ◽  
Cell Parameters ◽  
Current Voltage ◽  
Capacitance Voltage

AbstractCuInSe2 and Cu(In, Ga)Se2 precursor layers have been prepared by electrodeposition, with morphologies suitable for device completion. These precursor films were transformed into photovoltaic quality films after thermal annealing without any post-additional vacuum deposition process. Depending on the preparation parameters annealed films with different band gaps between 1eV and 1.5 eV have been prepared. The dependence of resulting solar cell parameters has been investigated. The best efficiency achieved is about 10,2 % for a band gap of 1.45 eV. This device presents an open circuit voltage value of 740 mV, in agreement with the higher band gap value. Device characterisations (current-voltage, capacitance-voltage and spectral response analysis) have been performed. Admittance spectroscopy at room temperature indicates the presence of two acceptor traps at 0.3 and 0.43 eV from the valance band with density of the order of 2. 1017 cm-3 eV-1.

Thermoelectric Modules For High Temperature Waste Heat

2005 ◽  
Vol 886 ◽  
Author(s):  
Ryoji Funahashi ◽  
Toshiyuki Mihara ◽  
Masashi Mikami ◽  
Saori Urata
Keyword(s):  
Room Temperature ◽  
Open Circuit Voltage ◽  
Waste Heat ◽  
Thermal Strain ◽  
Thermoelectric Module ◽  
Internal Resistance ◽  
Open Circuit ◽  
Cold Side ◽  
Adhesive Material ◽  
Thermoelectric Modules

ABSTRACTA new adhesive material has been developed in order to obtain practically usable thermoelectric modules composed of oxide thermoelectric legs. The thermoelectric module composed of 8-pair oxide legs has been fabricated. Both hot- and cold-sides of the module were covered by alumina plates. Open circuit voltage VO and maximum power Pmax reach 0.38 V and 0.30 W, respectively at 803 K of a hot-side temperature TH and 362 K of a temperature differential ΔT between TH and cold-side temperature TC. Generating power was repeated 11 times at 873-993 K of TH and at 200-290 K of ΔT. The module was cooled down to room temperature after each generation. At third measurement internal resistance RI of the module increased by 30 %. This is due to destruction of junctions because of thermal strain. No deterioration, however, was observed in thermoelectric properties for the oxide legs.

scholarly journals Temperature-Dependent Open-Circuit Voltage Measurements and Light-Soaking in Hydrogenated Amorphous Silcon Solar Cells

2005 ◽  
Vol 862 ◽  
Author(s):  
Jianjun Liang ◽  
E. A. Schiff ◽  
S. Guha ◽  
B. Yan ◽  
J. Yang
Keyword(s):  
Solar Cells ◽  
Amorphous Silicon ◽  
Room Temperature ◽  
Open Circuit Voltage ◽  
Hydrogenated Amorphous Silicon ◽  
Open Circuit ◽  
Illumination Intensity ◽  
Temperature Dependent ◽  
Defect Generation ◽  
Hydrogenated Amorphous

AbstractWe present temperature-dependent measurements of the open-circuit voltage VOC(T) in hydrogenated amorphous silicon nip solar cells prepared at United Solar. At room-temperature and above, VOC measured using near-solar illumination intensity differs by as much as 0.04 V for the as-deposited and light-soaked states; the values of VOC for the two states converge below 250 K. Models for VOC based entirely on recombination through deep levels (dangling bonds) do not account for the convergence effect. The convergence is present in a model that assumes the recombination traffic in the as-deposited state involves only bandtails, but which splits the recombination traffic fairly evenly between bandtails and defects for the light-soaked state at room-temperature. Recombination mechanisms are important in understanding light-soaking, and the present results are inconsistent with at least one well-known model for defect generation.

Energy Harvesting Leveraging Piezoelectric Property of ZnO Nanorods

2015 ◽  
Vol 24 (03n04) ◽  
pp. 1520013
Author(s):  
Abdiel Rivera ◽  
Anas Mazady ◽  
Mehdi Anwar
Keyword(s):  
Open Circuit Voltage ◽  
Zno Nanorods ◽  
Synthesis Method ◽  
Open Circuit ◽  
Energy Scavenging ◽  
Plastic Substrates ◽  
Red Led ◽  
In Series ◽  
Piezoelectric Devices ◽  
Circuit Configuration

Vertical ZnO nanorods (NRs) were grown on flexible plastic substrates at low temperature using hydrothermal synthesis method. An energy scavenging piezoelectric device was constructed using two flexible substrates with the NR sides facing each other providing a maximum open-circuit voltage of 1.4 V (peak). Two sets of three piezoelectric devices connected in series in a half-diode-bridge circuit configuration was demonstrated to turn on a commercial red LED.

scholarly journals Electronically Isolated Measuring Circuit for Multicell Traction Battery Modules Identifying State of Charge (SOC) Values

2019 ◽  
Vol 25 (6) ◽  
pp. 22-27 ◽  
Author(s):  
Michal Pipiska ◽  
Michal Frivaldsky ◽  
Matus Danko ◽  
Jozef Sedo
Keyword(s):  
Electronic Circuit ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Measuring Circuit ◽  
State Of Charge ◽  
Voltage Measurement ◽  
Soc Estimation ◽  
In Series ◽  
Battery Module ◽  
Very High

Paper focuses on the topic related to State of Charge (SOC) estimation of the battery modules. The design issues of the electronic circuit suited for very accurate voltage and current measurement used for evaluation of the SOC parameters of battery module (NexSys 12 V) are presented. The SOC evaluation is not described here, but the principles are based on the open-circuit voltage measurement in combination with the coulomb counting method. Both methods are considered within the practical design of the measuring circuit of traction lead-acid batteries connected in series (3 cells). The circuit proposal is verified by the simulation model and consequently by the experimental measurement. Mutual comparisons are done for each battery within the module. The results show a very high accuracy between the simulation and measurement, while the relative tolerance varies from - 7 % to 1 % within wide measuring ranges.

Self-Discharge Behavior of Lithium/Sulfur Battery Using Aluminum Current Collector

2005 ◽  
Vol 486-487 ◽  
pp. 630-633 ◽  
Author(s):  
Ho Suk Ryu ◽  
Hyo Jun Ahn
Keyword(s):  
Room Temperature ◽  
Elemental Sulfur ◽  
Open Circuit Voltage ◽  
Current Collector ◽  
Open Circuit ◽  
The Self ◽  
Discharge Behavior ◽  
Sulfur Battery ◽  
Sulfur Electrode ◽  
Lithium Sulfur

We investigated the self discharge behavior of lithium/sulfur cell using an alumium current collector. The discharge capacity decreased by 14% for oriniginal one after 30 days’ storage at room temperature. The open circuit voltage(OCV) of Li/S battery gradually decreased from 2.45V to 2.38V during the 30 days. The self discharge behavior was related to the decrease of elemental sulfur in the sulfur electrode.

scholarly journals Graphene Effect on Efficiency of TiO2-based Dye Sensitized Solar Cells (DSSC)

2016 ◽  
Vol 26 (1) ◽  
pp. 43 ◽  
Author(s):  
Nguyen Thai Ha ◽  
Pham Duy Long ◽  
Nguyen Thanh Trung ◽  
Le Van Hong
Keyword(s):  
Solar Cells ◽  
Room Temperature ◽  
Open Circuit Voltage ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Sem Images ◽  
Dye Sensitized ◽  
Photo Electrode ◽  
Graphene Content ◽  
Sensitized Solar Cells

Colloidal paste of TiO2 embedded with graphene (GS) was fabricated and used to spread TiO\(_2\) film photo-electrode of DSSC solar cells. The dye N179 and Iodine-based electrolyte were used in the DSSC solar cells. Raman scattering, SEM images were used to identify the material phases and microstructure of the film photo-electrode. I/V characteristics of the DSSC cells were recorded at room temperature. Open-circuit voltage Voc, short-current \(J_{sc}\) and efficiency η of the DSSC cells were estimated. It shows that graphene addition has affected on \(V_{oc}\),\(J_{sc}\) and \(\eta\). The \(V_{oc}\),\(J_{sc}\) and \(\eta\) abnormally depend on graphene content. The efficiency reached a maximal value with graphen concentration of 0.005 wt %, after that decreased. It is supposed to be related with an improving the charge transfer in the working photo-electrode of DSSC.

scholarly journals Gas Sensing with Solar Cells: The Case of NH3 Detection through Nanocarbon/Silicon Hybrid Heterojunctions

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2303
Author(s):  
Giovanni Drera ◽  
Sonia Freddi ◽  
Tiziano Freddi ◽  
Andrea De Poli ◽  
Stefania Pagliara ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensors ◽  
Room Temperature ◽  
Open Circuit Voltage ◽  
Gas Sensing ◽  
Open Circuit ◽  
Multiwalled Carbon ◽  
Single Walled Carbon Nanotube ◽  
Cell Parameters ◽  
Current Voltage

Photovoltaic (PV) cells based on single-walled carbon nanotube (SWCNT)/silicon (Si) and multiwalled carbon nanotube (MWCNT)/Si junctions were tested under exposure to NH3 in the 0–21 ppm concentration range. The PV cell parameters remarkably changed upon NH3 exposure, suggesting that these junctions, while being operated as PV cells, can react to changes in the environment, thereby acting as NH3 gas sensors. Indeed, by choosing the open-circuit voltage, VOC, parameter as read-out, it was found that these cells behaved as gas sensors, operating at room temperature with a response higher than chemiresistors developed on the same layers. The sensitivity was further increased when the whole current–voltage (I–V) curve was collected and the maximum power values were tracked upon NH3 exposure.

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