DICP OpenIR
Achieving EQE of 16,700% in P3HT: PC71BM based photodetectors by trap-assisted photomultiplication
Li, Lingliang1; Zhang, Fujun1; Wang, Jian1; An, Qiaoshi1; Sun, Qianqian1; Wang, Wenbin1; Zhang, Jian2; Teng, Feng1
Source PublicationSCIENTIFIC REPORTS
2015-03-17
DOI10.1038/srep09181
Volume5
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology
WOS SubjectMultidisciplinary Sciences
WOS Research AreaScience & Technology - Other Topics
WOS KeywordPOLYMER SOLAR-CELLS ; PHOTOCURRENT MULTIPLICATION ; BULK-HETEROJUNCTION ; NANOSCALE MORPHOLOGY ; BUFFER LAYER ; PERFORMANCE ; TEMPERATURE ; FULLERENE ; GAIN
AbstractWe report a trap-assisted photomultiplication (PM) phenomenon in solution-processed polymer photodetectors (PPDs) based on P3H : PC71BM as the active layer, the maximum EQE of 16,700% is obtained for the PPDs with PC71BM doping weight ratio of 1%. The PM phenomenon is attributed to the enhanced hole tunneling injection assisted by trapped electrons in PC71BM near Al cathode, which can be demonstrated by the transient photocurrent curves and EQE spectra of PPDs with different PC71BM doping ratios. The positive effect of trapped electrons in PC71BM near Al cathode on the hole tunneling injection is further confirmed by the simulated optical field and exciton generation rate distributions in the active layer and the EQE spectra of PPDs with Al(1)/P3HT : PC71BM(100 : 1)/Al(2) device structure under forward and reverse biases. This discovery may open a new road for organic materials to be used in highly sensitive photodetectors while preserving the advantages of organic materials.
Language英语
WOS IDWOS:000351229000010
Citation statistics
Cited Times:61[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146054
Collection中国科学院大连化学物理研究所
Affiliation1.Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Lingliang,Zhang, Fujun,Wang, Jian,et al. Achieving EQE of 16,700% in P3HT: PC71BM based photodetectors by trap-assisted photomultiplication[J]. SCIENTIFIC REPORTS,2015,5.
APA Li, Lingliang.,Zhang, Fujun.,Wang, Jian.,An, Qiaoshi.,Sun, Qianqian.,...&Teng, Feng.(2015).Achieving EQE of 16,700% in P3HT: PC71BM based photodetectors by trap-assisted photomultiplication.SCIENTIFIC REPORTS,5.
MLA Li, Lingliang,et al."Achieving EQE of 16,700% in P3HT: PC71BM based photodetectors by trap-assisted photomultiplication".SCIENTIFIC REPORTS 5(2015).
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