Semiconductor Nanocrystals-Based White Light Emitting Diodes

Journal Article · Fri Jan 01 04:00:00 EST 2010 · Small

DOI:https://doi.org/10.1002/smll.201000144· OSTI ID:984772

Dai, Quanqin ^[1]; Hu, Michael Z. ^[1]; Duty, Chad E ^[1]

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1. ORNL

In response to the demands for energy and the concerns of global warming and climate change, energy efficient and environmentally friendly solid state lighting, such as white light emitting diodes (WLEDs), is considered to be the most promising and suitable light source. Because of their small size, high efficiency, and long lifetime, WLEDs based on colloidal semiconductor nanocrystals (or quantum dots) are emerging as a completely new technology platform for the development of flat-panel displays and solid state lighting, exhibiting the potential to replace the conventionally used incandescent and fluorescent lamps. This replacement could cut the ever-increasing energy consumption, solve the problem of rapidly depleting fossil fuel reserves, and improve the quality of the global environment. In this review, we highlight the recent progress in semiconductor nanocrystals-based WLEDs, compare different approaches for generating white light, and discuss the benefits and challenges of the solid state lighting technology.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 984772
• Journal Information: Small, Journal Name: Small
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CLIMATES
EFFICIENCY
ENERGY CONSUMPTION
FLUORESCENT LAMPS
FOSSIL FUELS
GREENHOUSE EFFECT
LEDs
LIFETIME
LIGHT EMITTING DIODES
LIGHT SOURCES
QUANTUM DOTS
RESERVES
quantum dots
solid state lighting