作者: Jeong Hyuk Lee , Woong-Jhae Lee , Tai Hoon Kim , Takhee Lee , Seunghun Hong
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摘要: Transparent p-CuI/n-BaSnO3−δ heterojunction diodes were successfully fabricated by the thermal evaporation of a (1 1 1) oriented γ-phase CuI film on top an epitaxial BaSnO3–δ (0 0 grown pulsed laser deposition. Upon thickness being increased from 30 to 400 nm, hole carrier density was systematically reduced 6.0 × 1019 1.0 cm−3 and corresponding rectification ratio pn diode proportionally enhanced ~10 ~106. An energy band diagram exhibiting type-II alignment is proposed describe behavior diode. A shift built-in potential caused change in attributed thickness-dependent ratio. The best performing exhibited high current 6.75 105 at ±2 V ideality factor ~1.5.