• Journal Article

Visible light emission from quantized planar Ge structures

Citation

Venkatasubramanian, R., Malta, D., Timmons, M., & Hutchby, J. (1991). Visible light emission from quantized planar Ge structures. Applied Physics Letters, 59(13), 1603-1605. DOI: 10.1063/1.106269

Abstract

Visible photoluminescence has been observed near 1.9 eV at 300 K from quantized planar Ge structures. This is the first observation of luminescence in Ge and is similar to the recently reported luminescence from porous Si. The quantum structures are prepared from bulk Ge substrates, and both n- and p-type Ge produce luminescence at room temperature. These structures are fabricated by plasma-assisted etching using a CF4/O2 gas mixture. Applied Physics Letters is copyrighted by The American Institute of Physics