TY - JOUR
T1 - InN, latest development and a review of the band-gap controversy
AU - Butcher, K. S A
AU - Tansley, T. L.
PY - 2005/7
Y1 - 2005/7
N2 - Following a short history of its development, the latest advances in the physics of InN and the arguments surrounding the band-gap controversy are critically reviewed. The role of oxygen in the material is examined, with new absorption data presented for the amorphous oxynitride contribution. Assumptions regarding oxygen alloying are dispelled. The recent evidence for a 1.1-1.5 eV band-gap is examined, as well as evidence for the possibility of a ∼0.7 eV trapping centre. Data for the newly discovered nitrogen:InN alloy system, extending out to levels of 33% excess nitrogen, are discussed, as are current techniques for stoichiometry analysis. Finally it is concluded that the current analysis of InN is not yet sufficient to ascribe a known band-gap to the material.
AB - Following a short history of its development, the latest advances in the physics of InN and the arguments surrounding the band-gap controversy are critically reviewed. The role of oxygen in the material is examined, with new absorption data presented for the amorphous oxynitride contribution. Assumptions regarding oxygen alloying are dispelled. The recent evidence for a 1.1-1.5 eV band-gap is examined, as well as evidence for the possibility of a ∼0.7 eV trapping centre. Data for the newly discovered nitrogen:InN alloy system, extending out to levels of 33% excess nitrogen, are discussed, as are current techniques for stoichiometry analysis. Finally it is concluded that the current analysis of InN is not yet sufficient to ascribe a known band-gap to the material.
UR - http://www.scopus.com/inward/record.url?scp=20644452446&partnerID=8YFLogxK
U2 - 10.1016/j.spmi.2005.03.004
DO - 10.1016/j.spmi.2005.03.004
M3 - Review article
AN - SCOPUS:20644452446
SN - 0749-6036
VL - 38
SP - 1
EP - 37
JO - Superlattices and Microstructures
JF - Superlattices and Microstructures
IS - 1
ER -