Photovoltaic property measurement equipment of photoelectric device, measurement method and imaging system
A technology of photovoltaic characteristics and photoelectric devices, applied in the monitoring of photovoltaic systems, measuring electrical variables, measuring electricity, etc., can solve unreasonable problems and achieve the effect of improving time accuracy
Active Publication Date: 2018-07-10
HUAZHONG UNIV OF SCI & TECH
View PDF12 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Obviously, it is unreasonable to use the carrier-related parameters obtained under different states to calculate the carrier diffusion length L in the same equation
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0046] Such as figure 1 As shown, the photovoltaic characteristic measurement equipment of the photovoltaic device provided by the present invention includes: a light source assembly 1, a sample placement assembly 2, and a signal measurement assembly 3; the sample placement assembly 2 is used to place a battery sample and derive voltage and current signals of the battery sample, The light sourc...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses photovoltaic property measurement equipment of a photoelectric device, a measurement method and an imaging system. The measurement equipment comprises a light source assembly,a sample placement assembly and a signal measurement assembly, wherein the sample placement assembly is used for leading out voltage and current signals of a battery sample; the light source assemblyis used for providing stable balance light and instantaneous exciting light, which are used for vertically irradiating the surface of the battery sample; the signal measurement assembly is used for measuring voltage and current signals of the battery sample; the measurement method comprises the following steps: providing appointed testing light intensity by utilizing a balance light source and measuring corresponding open-circuit voltage or short-circuit current; then providing a disturbance signal by utilizing a pulse laser device and measuring a corresponding voltage attenuation signal or current attenuation signal. The imaging system comprises the measurement equipment and a calculation unit. The photovoltaic property measurement equipment disclosed by the invention can be used for measuring a microsecond-grade interface kinetics process of the photoelectric device and a photocurrent spectrum / photovoltage spectrum test is finished under the same working state of the device; two-dimensional imaging is carried out on kinetic parameters of the photoelectric device.
Description
technical field [0001] The invention belongs to the technical field of photoelectric device testing, and more specifically relates to a photovoltaic characteristic measurement device, a measurement method and an imaging system of a photoelectric device. Background technique [0002] In recent years, due to the continuous rise of global energy consumption, the research of optoelectronic devices has attracted more and more attention. Among them, perovskite solar cells are considered to have extremely high potential due to their low cost, high efficiency and easy preparation. Application prospects of solar cells. [0003] Although the efficiency of perovskite solar cells has reached a relatively high level, there are still many controversies about the working mechanism of perovskite solar cells. It has become important to study the carrier transport and recombination process in perovskite solar cells. One of the research directions, in which the test of photovoltaic characteri...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00H02S50/15
CPCH02S50/15G01R31/00Y02E10/50
Inventor 王鸣魁廖沛哲黄飞洪
Owner HUAZHONG UNIV OF SCI & TECH