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A stably enhanced transparent conductive graphene film obtained using an air-annealing method
Song, Xuefen1,2,3; Wei, Dapeng3; Sun, Tai3; Yu, Leyong3; Yang, Jun3; Zhang, Yongna3; Fang, Liang1,2; Wei, Dacheng4,5; Shi, Haofei3; Du, Chunlei3
2016-08-01
摘要A simple and effective air-annealing technique was developed to stably improve both the electrical conductivity and light transmission of pristine graphene. After the graphene film was annealed in air at 250 degrees C for 80 min, the mobility and carrier concentration were both significantly enhanced, and the sheet resistance was greatly reduced with a decrease rate of similar to 33%. Meanwhile, the transparency was also improved by more than 3%. The mechanism is. carefully discussed. The reason might be that air-annealing conditions provide a suitable atmosphere to etch and remove amorphous carbons. More importantly, the enhanced transparent conductive properties of the air-annealed graphene films were extraordinarily stable, and remained almost unchanged for 100 days.
关键词pristine graphene transparent conductive property air-annealing method stability
DOI10.1088/2053-1591/3/8/085003
发表期刊MATERIALS RESEARCH EXPRESS
ISSN2053-1591
卷号3期号:8页码:7
通讯作者Wei, DP (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China.
收录类别SCI
WOS记录号WOS:000402887200003
语种英语