文摘
P-type lithium-doped nickel oxide (p-LNiO) thin films were deposited on an n-type indium tin oxide (ITO) glass substrate using the modified spray pyrolysis method (SPM), to fabricate a transparent p鈥搉 heterojunction diode. The structural, optical, and electrical properties of the p-LNiO and ITO thin films and the p-LNiO/n-ITO heterojunction diode were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), UV鈥搗isible spectroscopy, Hall effect measurement, and current鈥搗oltage (I鈥?i>V) measurements. The nonlinear and rectifying I鈥?i>V properties confirmed that a heterojunction diode characteristic was successfully formed in the p-LNiO/n-ITO (p鈥搉) structure. The I鈥?i>V characteristic was dominated by space-charge-limited current (SCLC), and the Anderson model demonstrated that band alignment existed in the p-LNiO/n-ITO heterojunction diode.
Keywords:
heterojunction; nickel鈭抣ithium oxide; modified spray pyrolysis method; current鈭抳oltage characteristic