Yahoo Malaysia Web Search

Search results

  1. Dictionary
    phosphorescence
    /ˌfɒsfəˈrɛsns/

    noun

    • 1. light emitted by a substance without combustion or perceptible heat: "the stones overhead gleamed with phosphorescence"

    More definitions, origin and scrabble points

  2. en.wikipedia.org › wiki › PhosphorusPhosphorus - Wikipedia

    20 hours ago · Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth.

  3. Jul 6, 2024 · /ˌˈfɑsfəˌrɛs/ IPA guide. Other forms: phosphorescing; phosphoresced; phosphoresces. Definitions of phosphoresce. verb. to exhibit phosphorescence. see more. Cite this entry. Style: MLA. "Phosphoresce." Vocabulary.com Dictionary, Vocabulary.com, https://www.vocabulary.com/dictionary/phosphoresce. Accessed 06 Jul. 2024. Copy citation.

  4. Jul 6, 2024 · When this emission occurs from a triplet state, the molecule is called a phosphor, and its emission is classified as ultralong room temperature phosphorescence (URTP).

  5. Jul 5, 2024 · Such emission is called phosphorescence. It is relatively weak, slow, and shifted toward longer wavelength. Triplet states may be produced from higher singlets by processes called internal conversion and intersystem crossing.

  6. Jul 4, 2024 · Phosphorescence is used in applications such as OLEDs and several types of medical diagnostics, including cancer. It occurs when light is emitted at low temperatures caused by the absorption of...

  7. Jul 4, 2024 · Phosphorescence, which occurs when a molecule transitions from a high-energy state to a low-energy state, often competes with non-radiative processes where the molecule loses energy as...

  8. Jul 5, 2024 · The language of luminescence is clouded by history. Originally, fast luminescence was called fluorescence and slow (i.e., delayed or protracted) luminescence was called phosphorescence.