Sintered aerosol masks for dry‐etched quantum dots

Autor: Hans-Christen Hansson, Knut Deppert, Alfred Weidensohler, Lars Samuelson, Ivan Maximov
Rok vydání: 1994
Předmět:
Zdroj: Applied Physics Letters. 64:3293-3295
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.111314
Popis: We report on a sintering step in producing ultra‐fine silver aerosol particles to serve as etch masks for semiconductor quantum‐dot structures. Our experiments found heating conditions that reshape the Ag particles, resulting in a spherical shape and very good size uniformities. Using this improved aerosol generation technology, we have dry etched InP columns with 24±5 nm diameter and with very good uniformity, with nearly every aerosol particle resulting in a column. Column arrays with a density as high as 3×109 cm−2 could be produced.
Databáze: OpenAIRE