溶剂蒸发退火对银纳米线薄膜性能的增强  

Enhancement of Properties of Silver Nanowire Films Through Solvent Evapor Annealing

作　　者：万慧军[1,2] 魏优 钟远聪 章勇 Wan Huijun;Wei You;Zhong Yuancong;Zhang Yong(College of Mathematic and Physics, Jinggangshan University, Ji＇an, Jiangxi 343009, China;Institute of Optoelectronic Materials and Technology, South China Normal University, Guangzhou, Guangdong 510631, China)

机构地区：[1]井冈山大学数理学院,江西吉安343009 [2]华南师范大学光电子材料与技术研究所,广东广州510631

出　　处：《激光与光电子学进展》2018年第5期431-437,共7页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61377065;61574064);广东省科技计划项目(2014B090915004;2015B010132009)

摘　　要：利用旋涂技术制备了银纳米线(AgNW)薄膜,对该AgNW薄膜进行了溶剂蒸发退火处理。研究了所制备的AgNW薄膜的方块电阻、光学透光率、微结构及表面形貌,分析了以退火处理的AgNW薄膜作为阳极的聚合物太阳能电池的电流-电压特性。结果表明,经过3h的甲醇退火处理,薄膜方块电阻由退火前的45.3Ω/减小到28.7Ω/,最后达到饱和,薄膜的品质因数提高了72.7%,薄膜的性能得到了增强;随醇溶剂沸点的增加,AgNW薄膜方块电阻的降低程度变小。以退火处理的AgNW薄膜为阳极的聚合物太阳电池的光电转换效率由退火前的0.94%增大到1.60%。退火3h可获得性能较好的AgNW薄膜。Silver nanowire （AgNW） films are prepared by using the spin-coating technique and processed by solvent vapor annealing. The sheet resistance, transmissivity, microstructures and surface morphologies of AgNW films are investigated. The current-voltage characteristics of the polymer solar cells with these annealed AgNW films as the anodes are analyzed. The results show that, after 3 h of methanol annealing treatment, the sheet resistance of these films decreases from 45.3Ω /□ before annealing to 28.7Ω /□, and finally saturates. The quality factor increases by 72.7% and the properties of films are improved. With the increase of the boiling point of the alcoholic solvent, the decrease of the sheet resistance of AgNW films becomes slow. The photoelectric conversion efficiency of polymer solar cells with these annealed AgNW films as anodes increases from 0.94% before annealing to 1.60%. The AgNW films with superior properties can be obtained after 3 h of annealing treatment.

关 键 词：薄膜 薄膜性能 溶剂蒸发退火 银纳米线薄膜 方块电阻 聚合物太阳能电池 

分 类 号：O484.4[理学—固体物理]