Graphene concentrated solar power generation

How is graphene produced by concentrated solar radiation?

The detailed mechanism for production of graphene by concentrated solar radiation may be attributed to a photochemical or photothermal process or both. As we know, before picking, fruit peels are exposed to sunlight every day while remain intact. Therefore, photochemical process is hardly participated in converting fruit peels into graphene.

How to make graphene from a banana peel?

In this work, a green, facile, and rapid method was developed to prepare graphene directly from common biomass materials such as banana peels, cantaloupe peels, coconut peels, and orange peels by using concentrated solar radiation. The basic principle of this method is photothermal conversion.

Can a solar tracker-lens system produce graphene?

In the future, with the aid of a solar tracker-lens system, cost-free, pollution-free, and inexhaustible solar energy can be easily exploited for mass-producing graphene materials from wastes. Fresh bananas, cantaloupes, coconuts, and oranges were purchased from a local market.

Are graphene-based photovoltaic cells a thermionic energy converter?

Graphene-based photovoltaic cells for near-field thermal energy conversion Infrared radiative properties of heavily doped silicon at room temperature Graphene–semiconductor heterojunction sheds light on emerging photovoltaics Back-gated graphene anode for more efficient thermionic energy converters

How was graphene made?

The ultrapurified and distilled-deionized water was obtained from the laboratory of the School of Microelectronics. Fruit peels were directly obtained from the purchased fresh fruits, which served as raw materials to produce graphene without any further treatment.

What is concentrated-solar-induced graphene (CSIG)?

The product is named concentrated-solar-induced graphene (CSIG) based on the process employed to generate it. The resulting CSIG was characterized using a range of analytical techniques. The Raman spectrum of the CSIG displayed two distinct peaks corresponding to the D and G bands at ∼1343 and ∼1568 cm –1, respectively.