Phosphor, method for producing a phosphor, use of a phosphor and optoelectronic component

A method for producing a phosphor with the molecular formula

• Li8−2x−aMBx+cMFaMC1−c[MAMD4−z−bMEzMGbN4−z+b−cO8+z−b+c]:E, wherein
• 0≤x≤4.0≤c≤1, 0≤z≤4, 0≤a≤8, 0≤b≤4,
• 0≤2x+a≤8, 0≤z+b≤4, −4≤−z+b−c≤4,
• MB is an element or a combination of elements selected from the group of divalent elements,
• MC is an element or a combination of elements selected from the group of trivalent elements,
• MA is Li and/or Na,
• MD is an element or a combination of elements selected from the group of tetravalent elements,
• ME is an element or a combination of elements selected from the group of trivalent elements,
• MF is an element or a combination of elements selected from the group of monovalent elements,
• MG is an element or a combination of elements selected from the group of pentavalent elements, and
• E is an activator element, the method comprising:
• providing reactants,
• mixing the reactants to form a reactant mixture,
• heating the reactant mixture.

An optoelectronic component comprising:

• a radiation-emitting semiconductor chip and
• a conversion element with a phosphor with the molecular formula Li8−2x−aMBx+cMFaMC1−c[MAMD4−z−bMEzMGbN4−z+b−cO8+z−b+c]:E, wherein
• 0≤x≤4, 0≤c≤1, 0≤z≤4, 0≤a≤8, 0≤b≤4,
• 0≤2x+a≤8, 0≤z+b≤4, −4≤−z+b−c≤4,
• MB is an element or a combination of elements selected from the group of divalent elements,
• MC is an element or a combination of elements selected from the group of trivalent elements,
• MA is Li and/or Na,
• MD is an element or a combination of elements selected from the group of tetravalent elements,
• ME is an element or a combination of elements selected from the group of trivalent elements,
• MF is an element or a combination of elements selected from the group of monovalent elements,
• MG is an element or a combination of elements selected from the group of pentavalent elements, and
• E is an activator element.