WorksheetsOrganic Electronics
Total questions: 30
Worksheet time: 3600secs
What type of this photovoltaic?
photovoltaic cell
photovoltaic module
photovoltaic panel
photovoltaic array
What is an incorrect answer about alternating current?
easy to generate
can be transformed in voltage
electronic use
can be limited while keeping voltage high
The accurate statement about boron?
boron has five electron valences
boron is used for doping n-type in silicon
boron is chemical element with symbol of P
boron is most used material in photovoltaic devices
The false statement of advantages solar cell
It is a sustainable
Solar cells produce almost no pollution and its clean energy
Solar energy is a renewable free source of energy that is totally inexhaustible, unlike fossil fuels that are finite
Solar facilities can produce power at all of the time
The incorrect statement about phosphorus
phosphorus has 5 electron valences
n-type in photovoltaic cell system
positive character in photovoltaic cell system
phosphorus has 15 atomic number
Photodetector has designed to operate in
zero bias
reverse bias
low speed
non linear response
A true statement related photodetector
no power supply
low noise
work as sensors and receivers
operates in the 3rd quadrant of the IV characterization
The thickness and morphology of thin film using spin coating technique depend on ........... except
viscosity
rotational speed
molecular weight and concentration of solute
volume of ink
Advantage of casting technique in preparing thin film is
lack of control over the film thickness
no equipment
picture framing effects and precipitation during drying
the drying is inhomogeneous
The type of printing technique used in large substrate are ........ except
screen printing
pad printing
casting
gravure printing
Below is a false statement related to the printing technique
wet films through contact
the formation of dry films
similar to doctor blading
rotary screen printing
Inkjet printing is
printing technique based on the formation of a small droplet of ink that is then deposited on the substrate
the object or substrate to be coated is guided through a curtain of fluid located in a gap between two conveyors
similar to doctor blading in laboratory scale
simply cast a solution onto a substrate followed by drying
Choose incorrect statements regarding evaporation technique
evaporation is the best choice for small molecule of thermally stable but less soluble
to grow a film by thermal evaporation
to create interpenetrating donor- acceptor networks
no equipment needed to grow thin film
The technique works by placing a sharp blade at a fixed distance from the substrate surface that is to be coated namely
casting technique
inkjet printing
spin coating
doctor blading
What is a sensor
a device which converts one form of energy to another
a device which provides a usable output in response to a specified measured
a device which converts light to energy
broad range selectivity spectrum
Active element of sensor is called as
transducer
photodiode
organic material
actuator
Economic factors in choosing a sensor except
cost
availability
lifetime
corrosive
Feature of organic materials to be used as active materials of thin film in sensor application except
large area
high temperature
flexible
low cost
Measured quantities such as absorption, reflectivity and refractive index normally determined using
chemical sensor
optical sensor
thermal sensor
magnetic sensor
Common characteristic for sensor is
sensitivity
selectivity
repeatability
magnetic
Photovoltaic has designed to operate in
zero bias
reverse bias
ejected electron
photoelectric effect
Correct statement about photodetector is
The electronic device converts solar energy into electrical energy
PV cell operates in the forth quadrant of the I-V characterization
Low noise
Work as sensors or receivers
False application of photodetector is
Audio CD players
Nuclear radiation detectors
winter coats
2D bar code reader
How to reduce the contamination of oxygen and water using the evaporation approach?
fabricating thin film using spin coating
grow film on the surface using thermal evaporation under ultra-high vacuum
grow film by a multilayer structure
grow film on the surface under excessive heat
Spray coating produces
a thick coating of thin film
a thin and uniform films
a homogenous layer of thin film
a good pattern deposited layer of thin film
The measured quantity in the sensor is
magnetic field
silicon
organic
film
One of the components in setting up of the optical sensor is
solar cell
fiber optic
resistor
amplifier
The application of sensor is in
medical
food security
environment
all of the answers
Surface-enhanced Raman scattering (SERS) sensor detects the analyte by
the increasing of the Raman signal
the decreasing of the absorbance peak
the increasing of the current
the decreasing of the voltage
A sensor is known as
a device converts the energy of the sun (light) to electricity (power)
an electronic device that converts light into electrical energy
a device that provides a usable output in response to a specified measured
solar panel
