Which of the following are examples of solar cells? A. Organic solar cell B. Nanoparticle solar cell C. Elemental solar cell D. Plastic solar cell E. Molecular solar cell Choose the most appropriate answer from the options given below:
A, B and D Only
Understanding Different Types of Solar Cells
Solar cells, also known as photovoltaic cells, are devices that convert light energy from the sun into electricity through the photovoltaic effect. There are many different types of solar cells, often classified based on the materials they use or their structural design. Let's examine the options provided to identify which ones represent recognized types of solar cells.
We will analyse each option:
- A. Organic solar cell: These solar cells use organic (carbon-containing) polymers or small molecules to absorb light and generate charge. They are a well-established area of research and development in photovoltaic technology.
- B. Nanoparticle solar cell: This category often refers to solar cells that incorporate nanoparticles, such as quantum dots or metallic nanoparticles, to enhance light absorption or charge separation. Examples include some types of dye-sensitized solar cells or quantum dot solar cells. It is a valid classification based on material inclusion.
- C. Elemental solar cell: While solar cells are made of elements (like silicon or cadmium), "Elemental solar cell" is not a standard, commonly used classification term for a distinct *type* of solar cell technology in the way that silicon, thin-film, or organic are classified. Silicon solar cells, for instance, are made of the element silicon, but they are typically referred to as silicon solar cells (e.g., monocrystalline or polycrystalline), not "elemental".
- D. Plastic solar cell: This term often overlaps with Organic solar cells, especially when the active organic materials are deposited on flexible plastic substrates. It can also refer more broadly to flexible solar cells made using plastic. It is often used to describe a type of flexible and potentially low-cost solar cell.
- E. Molecular solar cell: This term is very broad and often used interchangeably or in relation to Organic solar cells, as organic materials are composed of molecules. However, "Organic solar cell" is the more commonly used and specific classification in the field compared to the general term "Molecular solar cell".
Based on common classifications and the provided options, Organic solar cells, Nanoparticle solar cells, and Plastic solar cells are considered distinct or commonly referenced examples of solar cell types or categories.
Therefore, options A, B, and D are examples of solar cells or related classifications.
The most appropriate answer includes A, B, and D.
Revision Table: Solar Cell Types Analysis
| Option | Is it a standard/common solar cell type? | Explanation |
|---|---|---|
| A. Organic solar cell | Yes | Uses organic semiconductor materials. |
| B. Nanoparticle solar cell | Yes (as a category based on material) | Incorporates nanoparticles (e.g., quantum dots). |
| C. Elemental solar cell | No (not a standard classification term) | While materials are elements, this isn't how types are typically named. |
| D. Plastic solar cell | Yes (often overlaps with Organic/Flexible) | Often refers to organic cells on plastic substrates or flexible cells. |
| E. Molecular solar cell | Less common/overlaps with Organic | Organic cells are molecular, but "Organic" is the standard term. |
Additional Information on Solar Cell Classification
Solar cells can be classified in several ways, often by generation or by the material used:
- First Generation: Dominated by crystalline silicon (c-Si) wafers, including monocrystalline silicon and polycrystalline silicon. These are the most common types commercially.
- Second Generation: Known as thin-film solar cells, these use less semiconductor material. Examples include Amorphous silicon (a-Si), Cadmium Telluride (CdTe), and Copper Indium Gallium Selenide (CIGS).
- Third Generation: These are emerging technologies aiming for higher efficiency or lower cost. This category includes technologies like Dye-Sensitized Solar Cells (DSSC), Quantum Dot Solar Cells (QDSC), Perovskite Solar Cells, Organic Solar Cells (OPV), and technologies incorporating nanoparticles. Organic solar cells and nanoparticle solar cells fit within this broader category of advanced or emerging technologies. Plastic solar cells are often associated with the flexibility achievable with some organic or thin-film materials on plastic substrates.
Understanding these classifications helps in recognizing different types of solar cells.
Important Questions from People
Given below are two statements :
Statement I: Michael Polanyi, a physical chemist and philosopher of science, has argued that our explicit knowing depends on a vast subterranean layer of tacit human knowing.
Statement II: According to Polanyi, "If we did not have bodies and selves" we could not know any of what we know at an articulate conceptual, logical, empirical level".
In the light of the above statements, choose the most appropriate answer from the options given below :
Given below are two statements :
Statement I : Interrogative education begins with the premise that we are embedded in a communal reality.
Statement II : We cannot know this communal reality truly and well unless we ourselves are consciously and actively in community with it as knowers.
In the light of the above statements, choose the most appropriate answer from the options given below :
Match List I with List II
List I (Pollution Source)
List II (Category)
A.
Sewage
I.
Thermal Pollution
B.
Agriculture fertilizers
II.
Sediments
C.
Land Erosion
III.
Oxygen demanding waste
D.
Power Plants
IV.
Plants Nutrients
Choose the correct answer from the options given below:Through enrichment process, concentration of which uranium isotope is increased in the natural uranium?
Who among the following thinkers observed that light and heat are only different forms of the same essential substance and also speaks of gravity as the cause of falling?
