热稳定溶液法制备的氧化钒作为有机太阳能电池中的空穴提取层
Thermally Stable Solution Processed Vanadium Oxide as a Hole Extraction Layer in Organic Solar Cells.
作者信息
Alsulami Abdullah, Griffin Jonathan, Alqurashi Rania, Yi Hunan, Iraqi Ahmed, Lidzey David, Buckley Alastair
机构信息
Department of Physics & Astronomy, University of Sheffield, Hicks Building, Hounsfield Rd., Sheffield, South Yorkshire S3 7RH, UK.
Department of Chemistry, University of Sheffield, Sheffield, South Yorkshire S3 7HF, UK.
出版信息
Materials (Basel). 2016 Mar 25;9(4):235. doi: 10.3390/ma9040235.
Low-temperature solution-processable vanadium oxide (V₂O) thin films have been employed as hole extraction layers (HELs) in polymer bulk heterojunction solar cells. V₂O films were fabricated in air by spin-coating vanadium(V) oxytriisopropoxide (s-V₂O) at room temperature without the need for further thermal annealing. The deposited vanadium(V) oxytriisopropoxide film undergoes hydrolysis in air, converting to V₂O with optical and electronic properties comparable to vacuum-deposited V₂O₅. When s-V₂O thin films were annealed in air at temperatures of 100 °C and 200 °C, OPV devices showed similar results with good thermal stability and better light transparency. Annealing at 300 °C and 400 °C resulted in a power conversion efficiency (PCE) of 5% with a decrement approximately 15% lower than that of unannealed films; this is due to the relative decrease in the shunt resistance (R) and an increase in the series resistance (R) related to changes in the oxidation state of vanadium.
低温溶液可加工的氧化钒（V₂O）薄膜已被用作聚合物本体异质结太阳能电池的空穴提取层（HEL）。通过在室温下旋涂三异丙氧基氧钒（s-V₂O）在空气中制备V₂O薄膜，无需进一步热退火。沉积的三异丙氧基氧钒薄膜在空气中发生水解，转化为V₂O，其光学和电子性能与真空沉积的V₂O₅相当。当s-V₂O薄膜在100℃和200℃的空气中退火时，有机光伏（OPV）器件显示出相似的结果，具有良好的热稳定性和更好的光透明度。在300℃和400℃退火导致功率转换效率（PCE）为5%，比未退火的薄膜降低约15%；这是由于与钒氧化态变化相关的并联电阻（R）相对降低和串联电阻（R）增加所致。
Zotero 插件