Use of bora-tetraazapentalenes

A method for doping an electronic, optoelectronic or electroluminescent structural element, the method comprising doping the electronic, optoelectronic or electroluminescent structural element with a bora-tetraazapentalene redox dopant and/or emitter in accordance with the general formula A:

• in which:
• R1, R2 and R3 are, independently of each other, hydrogen, any substituted or non-substituted alkyl, hetalkyl, aryl, hetaryl, anellated carbocycle or anellated heterocycle;
• and
• R4 and R5 are, independently of one another, halogen, hydrogen, any substituted or non-substituted alkyl, hetalkyl, aryl, hetaryl, anellated carbocycle or anellated heterocycle or are of such a nature that both jointly form a boron-containing heterocycle with the boron atom.