TY - JOUR
T1 - Photoconductivity kinetics of indium sulfofluoride thin films
AU - Vygranenko, Yuri
AU - Fernandes, Miguel
AU - Vieira, Manuela
AU - Lavareda, Guilherme
AU - Nunes De Carvalho, Carlos
AU - Brogueira, Pedro
AU - Amaral, Ana
N1 - Fundação para a Ciencia e a Tecnologia - project PhotoAKI: PTDC/NAN-OPT/31311/2017;
IPL/2019/BioPlas-ISEL;
pluriannual contract with CeFEMA (UID/CTM/04540/2019).
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Indium sulfofluoride is an amorphous wide-gap semiconductor exhibiting high sensitivity to UV radiation. This work reports on the kinetics of photoconductivity in indium sulfofluoride thin films along with their electrical and optical properties. The films were deposited by radio-frequency plasma-enhanced reactive thermal evaporation. The film characterization includes electrical, optical, and photoconductivity measurements. The films are highly transparent in the visible-infrared range due to an indirect bandgap of 2.8 eV. The spectral response measurements have revealed existence of the band tail states. The synthesized compound is highly resistive (∼200 Mω -cm at 300 K) and exhibits extremely slow photocurrent relaxations. Photoconductivity kinetics was studied under various excitation conditions. A dependence of the photocurrent on the incident photon flux was also determined.
AB - Indium sulfofluoride is an amorphous wide-gap semiconductor exhibiting high sensitivity to UV radiation. This work reports on the kinetics of photoconductivity in indium sulfofluoride thin films along with their electrical and optical properties. The films were deposited by radio-frequency plasma-enhanced reactive thermal evaporation. The film characterization includes electrical, optical, and photoconductivity measurements. The films are highly transparent in the visible-infrared range due to an indirect bandgap of 2.8 eV. The spectral response measurements have revealed existence of the band tail states. The synthesized compound is highly resistive (∼200 Mω -cm at 300 K) and exhibits extremely slow photocurrent relaxations. Photoconductivity kinetics was studied under various excitation conditions. A dependence of the photocurrent on the incident photon flux was also determined.
UR - http://www.scopus.com/inward/record.url?scp=85082883361&partnerID=8YFLogxK
U2 - 10.1051/epjap/2020190265
DO - 10.1051/epjap/2020190265
M3 - Article
AN - SCOPUS:85082883361
VL - 89
JO - Current Applied Physics
JF - Current Applied Physics
SN - 1567-1739
IS - 1
M1 - 10302
ER -