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Seeing Is Believing: Scientists Visualize Record Exciton Diffusion Length

Optoelectronics, a technology that gives off, detects, or controls light, is used everywhere in modern electronics and includes light-emitting diodes and solar cells. Within these devices, the movement of excitons (pairs of negative electrons and positive holes) determines how well the device performs. Until now, the distance that excitons could travel in conventional optoelectronic systems was around 30-70 nanometers, and there was no way to directly image how the excitons move. Now, a team of researchers from the U.S.

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Nanotechnology Research and Development Infrastructure

The National Nanotechnology Initiative has a robust research infrastructure with user facilities and multidisciplinary research and education centers across the United States.
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Responsible Development of Nanotechnology

As a goal of the NNI since inception, responsible development includes understanding potential environmental, health, and safety (EHS) implications of nanomaterials as well as the ethical, legal, and societal implications (ELSI) of nanotechnology.
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NNI agencies are collaborating with industry to facilitate the commercialization of federally funded nanotechnology discoveries.
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Nanotechnology Signature Initiatives and Nanotechnology-Inspired Grand Challenges

The National Nanotechnology Initiative has focused efforts in areas of national importance to enhance coordination and collaboration among the participating agencies and to engage with the public: Nanotechnology Signature Initiatives and Nanotechnology-Enabled Grand Challenges.
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Nanotechnology Research and Development Infrastructure

Under the National Nanotechnology Initiative, several participating agencies have built or supported the development of user facilities and have established and developed multidisciplinary research and education centers across the United States.
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Responsible Development of Nanotechnology

With the advent of new technologies, including nanotechnology, one should consider both potential benefits and unintended risks to human health and the environment that might accompany development.
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