In:
Applied Physics Letters, AIP Publishing, Vol. 67, No. 24 ( 1995-12-11), p. 3599-3601
Abstract:
A comparison of the photoluminescence of Er-doped hydrogenated amorphous silicon and crystalline silicon a-Si:H(Er) and c-Si(Er), is presented. It is shown that a-Si:H(Er) exhibits efficient room-temperature photoluminescence at 1.537 μm which is as strong as the emission from optimized c-Si(Er) at 2 K. Most remarkably, there is practically no temperature quenching of the emission intensity in the range 2–300 K. The experiments suggest that the lifetime connected with the Er-induced emission is considerably shorter in a-Si:H(Er) than in c-Si(Er) which may be responsible for the different dependences of the photoluminescence intensity on the temperature, chopping frequency, and excitation power.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
1995
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0
