Title:

Surface photocurrent nonuniformities in MSM detectors fabricated in gallium nitride heteroepitaxial layers

Group publication title:

Optica Applicata

Creator:

Szyszka, Adam ; Paszkiewicz, Bogdan ; Paszkiewicz, Regina ; Tłaczała, Marek

Contributor:

Gaj, Miron. Redakcja ; Urbańczyk, Wacław. Redakcja

Subject and Keywords:

optyka ; metal–semiconductor–metal (MSM) ; UV detector ; gallium nitride ; optical beam induced current (OBIC) ; scanning surface potential microscopy (SSPM)

Description:

Optica Applicata, Vol. 39, 2009, nr 4, s. 723-728

Abstrakt:

A correlation of surface potential maps and photocurrent distribution images in metal–semiconductor–metal (MSM) structures allows to notice spatial nonuniformities in detector principle of operation. This effect exists only for low frequency modulation of optical excitation. This phenomenon was explained by the inhomogeneity of potential barriers and surface states density in heteroepitaxial gallium nitride layers caused by their columnar structure.

Publisher:

Oficyna Wydawnicza Politechniki Wrocławskiej

Place of publication:

Wrocław

Date:

2009

Resource Type:

artykuł

Source:

<sygn. PWr A3481II> ; click here to follow the link ; click here to follow the link

Language:

eng

Relation:

Optica Applicata ; Optica Applicata, Vol. 39, 2009 ; Optica Applicata, Vol. 39, 2009, nr 4 ; Politechnika Wrocławska. Wydział Podstawowych Problemów Techniki

Rights:

Wszystkie prawa zastrzeżone (Copyright)

Access Rights:

Dla wszystkich w zakresie dozwolonego użytku

Location:

Politechnika Wrocławska