The role of MoS2 as an interfacial layer in graphene/silicon solar cells | |
Jiao, Kejia; Duan, Chunyang; Wu, Xiaofeng; Chen, Jiayuan; Wang, Yu; Chen, Yunfa | |
刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS |
2015 | |
卷号 | 17期号:12页码:8182-8186 |
关键词 | EFFICIENCY PERFORMANCE EXTRACTION NANOSHEETS FILMS HOLE |
ISSN号 | 1463-9076 |
通讯作者 | Wang, Y (reprint author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China. |
英文摘要 | The role of MoS2 as an effective interfacial layer in graphene/silicon solar cells is systematically investigated by varying MoS2 film annealing temperature and thickness. It is found that the power conversion efficiency (PCE) is increased by similar to 100% from similar to 2.3% to similar to 4.4% with 80 degrees C annealed MoS2 film whereas it drops significantly to similar to 0.6% with 200 degrees C annealed MoS2 film. The results are well explained based on the device energy band diagram. That is, the incorporation of MoS2(80) films leads to the formation of type II structure, facilitating hole transport; while valence band mismatch is formed with MoS2(200) films due to the increase in the work function of MoS2. Besides, the PCE increases gradually with decreasing MoS2 film thickness, and ''saturates'' at about 2 nm. The PCE can be further enhanced to similar to 6.6% with the aid of silicon surface passivation. Our work demonstrates that MoS2 is an excellent interfacial layer to improve the PCE with low-temperature annealing (80 degrees C in air), which may be helpful in developing efficient and low-cost G/Si solar cells. |
学科主题 | Chemistry ; Physics |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
研究领域[WOS] | Chemistry ; Physics |
关键词[WOS] | EFFICIENCY ; PERFORMANCE ; EXTRACTION ; NANOSHEETS ; FILMS ; HOLE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000351437500066 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/13840] |
专题 | 过程工程研究所_研究所(批量导入) |
作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Jiao, Kejia,Duan, Chunyang,Wu, Xiaofeng,et al. The role of MoS2 as an interfacial layer in graphene/silicon solar cells[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2015,17(12):8182-8186. |
APA | Jiao, Kejia,Duan, Chunyang,Wu, Xiaofeng,Chen, Jiayuan,Wang, Yu,&Chen, Yunfa.(2015).The role of MoS2 as an interfacial layer in graphene/silicon solar cells.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,17(12),8182-8186. |
MLA | Jiao, Kejia,et al."The role of MoS2 as an interfacial layer in graphene/silicon solar cells".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 17.12(2015):8182-8186. |
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