SYNTHESIS AND INVESTIGATION OF STRUCTURAL, SURFACE MORPHOLOGICAL AND OPTICAL PROPERTIES OF InSe/PMItz HYBRID HETEROJUNCTION

Authors : Fatih ÜNAL, Merve ZURNACI, Serkan DEMİR, Mahmut GÜR, Nesrin ŞENER, İzzet ŞENER

Pages : 273-288

Doi:10.34186/klujes.1178165

View : 16 | Download : 11

Publication Date : 2022-12-31

Article Type : Research Paper

Abstract :On a series of annealed and unannealed InSe thin films which were formerly produced by electrochemical deposition method, organic PMItz semiconductor compound was growth by physical vapour deposition insert ignore into journalissuearticles values(PVD); method. Structural analyses of the films carried out by X-ray diffractometry insert ignore into journalissuearticles values(XRD); method revealed that glass/ITO/InSe film formed in hexagonal InSe phase while glass/ITO/InSeinsert ignore into journalissuearticles values(annealed); film formed in monoclinic In6Se7 and orthorombic In4Se3 phases. Surface analyses of the layers forming heterojunction were conducted by atomic force microscoby insert ignore into journalissuearticles values(AFM); and it is observed that the layers are homogenous and have different roughness values. Optical analyses of the films demonstrated that annealing of the film result with increased absorption coefficient and reduced energy band gap. Moreover, other optical parameters of the films i.e. refractive indiceinsert ignore into journalissuearticles values(n);, extinction coefficient insert ignore into journalissuearticles values(k);, real dielectric constantinsert ignore into journalissuearticles values(Er);, imaginary dielectric constantinsert ignore into journalissuearticles values(Ei); and optical conductivity were determined and compared within 300-1000 nm range.
Keywords : InSe, Organik yarıiletken, Hibrit heteroeklem, Optoelektronik