2014
DOI: 10.1063/1.4864638
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Hole-conductor-free perovskite organic lead iodide heterojunction thin-film solar cells: High efficiency and junction property

Abstract: Efficient hole-conductor-free organic lead iodide thin film solar cells have been fabricated with a sequential deposition method, and a highest efficiency of 10.49% has been achieved. Meanwhile, the ideal current-voltage model for a single heterojunction solar cell is applied to clarify the junction property of the cell. The model confirms that the TiO 2 /CH 3 NH 3 PbI 3 /Au cell is a typical heterojunction cell and the intrinsic parameters of the cell are comparable to that of the high-efficiency thin-film so… Show more

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Cited by 477 publications
(352 citation statements)
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“…where T is the absolute temperature, K B is Boltzmann constant, A is ideality factor and J 0 is the reverse saturated current density 14 . The R S and V OC can be obtained from equations (1) and (3), respectively.…”
Section: Resultsmentioning
confidence: 99%
See 2 more Smart Citations
“…where T is the absolute temperature, K B is Boltzmann constant, A is ideality factor and J 0 is the reverse saturated current density 14 . The R S and V OC can be obtained from equations (1) and (3), respectively.…”
Section: Resultsmentioning
confidence: 99%
“…5a). Because the J-V curves show good rectification characteristics, the R S and V OC of the cell can be calculated according to the diode equation 14 :…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…[ 48 ] Shi et al got a 10.5% PCE by using a two-step deposition method and argued that their TiO 2 /CH 3 NH 3 PbI 3 /Au cell is a typical heterojunction solar cell. [ 49 ] When they inserted an ultrathin Al 2 O 3 fi lm between CH 3 NH 3 PbI 3 and Au to block electrons, they achieved an 11.1% PCE. [ 50 ] Two HTL-free cells with structures of ITO/CH 3 NH 3 PbI 3 /PC 61 BM/Bis-C 60 /Ag [ 51 ] and ITO/CH 3 NH 3 PbI 3 /C 60 /BCP/Ag [ 52 ] (BCP = 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline) were reported, giving PCEs of 11.0% and 16.0%, respectively.…”
Section: Htl-free Cellsmentioning
confidence: 99%
“…Since MAPbI 3 is a good hole-conductor, additional hole-conducting layers typically used in perovskitebased solar cells can be eliminated while retaining high PCEs. [17][18][19] Furthermore, the widely used mesoporous TiO 2 electron-acceptor/-conductor scaffold and/or dense TiO 2 holeblocking layer, which require high-temperature processing, have been eliminated in these solar cells. [17][18][19] Efficient electronhole dissociation occurs at the MAPbI 3 /C 60 interface, making C 60 a promising candidate as a non-oxide electron-acceptor/-conductor and hole-blocking layer in perovskite-based solar cells.…”
mentioning
confidence: 99%