Graphen Today
AcePREX | Sep 14, 2024
4.2 Graphene in data storage
Data storage is one of the important areas of research. Investigators are develop
ing the powerful small size hard drives to store higher capacity of data. Researchers
suggested that replacing indium tin oxide electrodes with polymers and graphene
oxide exhibit write-read-read-rewrite features. Graphene based storage devices are
10 times more powerful than the currently available storage drives. Making small
size storage devices is not an issue but increasing capacity levels of storage devices is
much importance task. With applications of graphene oxide devices will create big
difference in modern industrial environments.
4.3 Graphene in LCD smart windows and OLED displays
Liquid crystal display (LCD) smart window is flexible device which consist
of a layer of liquid crystals sandwiched between two flexible electrodes made of
flexible polymer and graphene. Organic light emitting diode (OLED) windows are
also utilized graphene-based OLED counter electrodes. Currently LCDs and OLED
technologies utilize indium tin oxide counter electrodes. These materials are brittle
in nature and limited availability in the world. Compared to indium tin oxide,
graphene is flexible and availability is more/limitless. Usage of graphene in produc
ing flexible smart devices like mobiles and tablet devices is an important research
area due to its excellent properties.
4.4 Graphene in supercapacitors
Present days electronics are occupying almost every industrial application.
Energy storage devices are highly required in every electronics to delivering high
electric currents within short time. Supercapacitor is one of the important energy
storage devices which utilizes high internal surface area to store charge to delivers
higher currents compared to normal capacitors. Graphene can be highly suitable
for making supercapacitors due to its higher internal area property. More research
attempts are performing to create graphene-based supercapacitors for many
advanced applications.
4.5 Graphene in solar cells/photovoltaic cell
Solar energy is one of the alternatives, and usage is increasing due to shortage
of fusil fuels. Solar cell is important element in solar device which plays critical role
to absorb energy from sun light. Presently, platinum-based electronics are using to
produce solar cells or photovoltaic cells. Due to higher cost of platinum based solar
cells limits its usage in industries. On the other hand, graphene is excellent conduc
tor which is potential material for solar cells. Graphene based electrodes can be
made low cost as well as weight while maintaining the efficiency [14].
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