Solution‐Processed Heterojunction Solar Cells Based on p‐type PbS Quantum Dots and n‐type Bi<sub>2</sub>S<sub>3</sub> Nanocrystals

Rath, Arup K.; Bernechea, María; Martínez, Luis; Konstantatos, Gerasimos

doi:10.1002/adma.201101399

Cited by 188 publications

(135 citation statements)

References 30 publications

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“…In the case of HC(NH 2 ) 2 + , this is not possible in this space group because the + cations tend to be disordered in the cuboctahedral cages formed by 12 nearest-neighbor iodine atoms from the PbI 6 4− octahedra. 25 As a result, the synthesized FAPbI 3 adopts the P3m1 trigonal space group with lattice parameter of a = 9.0008(8) Å, b = 9.0008(8) Å, c = 11.012(2) Å, and α = 90°, β = 90°, γ = 120° (Figure 2a), according to the Rietveld refinement.…”

Section: Chemistry Of Materialsmentioning

confidence: 99%

NH₂CH═NH₂PbI₃: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

et al. 2014

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A new nearly cubic NH 2 CHNH 2 PbI 3 (FAPbI 3 ) perovskite was synthesized for the mesoscopic solar cells. The measured band gap of bulk FAPbI 3 is 1.43 eV and it is therefore potentially superior than the CH 3 NH 3 PbI 3 (MAPbI 3 ) as the light harvester. A homogeneous FAPbI 3 perovskite layer was deposited on the TiO 2 surface by utilizing the in situ dipping technology. As a result, a high efficiency of 7.5% was achieved using P3HT as the hole transport material. The nearly cubic crystal structure and appropriate band gap render this new FAPbI 3 perovskite extremely attractive for next generation high-efficiency low-cost solar cells.

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Section: Chemistry Of Materialsmentioning

confidence: 99%

NH₂CH═NH₂PbI₃: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

et al. 2014

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“…[28][29][30] Its good conductivity and relatively easy synthetic process further extend its application to photodetectors and solar cells. [31,32] Previously, Bi 2 S 3 nanorod photodetectors with a photoconductive gain of 1.1 and solution-processed Bi 2 S 3 nanocrystalline photodetectors with a photoconductive gain of 10 and a temporal response of 10 ms have been reported. [33,34] In previous work, we investigated the photoresponsive behavior of Bi 2 S 3 NW films at low temperatures, which was distinctly different from that at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of Electrical Contact on the Performance of Bi₂S₃ Single Nanowire Photodetectors

Yang

Huo

et al. 2014

ChemPhysChem

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Bi2S3 single-crystalline nanowires are synthesized through a hydrothermal method and then fabricated into single nanowire photodetectors. Due to the different contact barrier between the gold electrode and Bi2S3 nanowires, two kinds of devices with different electrical contacts are obtained and their photoresponsive properties are investigated. The non-ohmic contact devices show larger photocurrent gains and shorter response times than those of ohmic contact devices. Furthermore, the influence of a focused laser on the barrier height between gold and Bi2S3 is explored in both kinds of devices and shows that laser illumination on the Au-Bi2S3 interface can greatly affect the barrier height in non-ohmic contact devices, while keeping it intact in ohmic contact devices. A model based on the surface photovoltage effect is used to explain this phenomenon.

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“…Among the different studies on Bi 2 S 3-based solar cells, many reports are on the thin film-based solar cells (Wang et al 2007;Moreno-García et al 2011;Becerra et al 2011) and photoelectrochemical solar cells (PEC) (Bhattacharya and Pramanik 1982;Mane et al 2007;Rajalakshmi et al 2013;Narayanan et al 2013;Jana et al 2009;Rath et al 2011). These days, Bi 2 S 3 has received considerable attention as an absorber in photovoltaic applications (Kamat 2008).…”

Section: Introductionmentioning

confidence: 99%

TiO2 photoanode sensitized with nanocrystalline Bi2S3: the effect of sensitization time and annealing on its photovoltaic performance

Kulkarni¹,

Prasad

Pathan

et al. 2015

Appl Nanosci

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This work deals with the sensitization of the porous TiO 2 films of thickness about 4 lm deposited on fluorine-doped tin oxide with nanocrystalline Bi 2 S 3 for photovoltaic application. The sensitization was achieved for four different sensitization times employing chemical solution deposition with bismuth nitrate and sodium thiosulphate as precursors for Bi 3? and S 2-, respectively. The unsensitized and sensitized photoelectrodes were characterized using X-ray diffractometry, scanning electron microscopy and diffused reflectance spectroscopy. XRD patterns show the signatures of both anatase TiO 2 and orthorhombic Bi 2 S 3 in the sensitized photoanodes. However, crystallinity of Bi 2 S 3 increased with increase in sensitization time from 10 to 40 min. The temporal effect of sensitization and annealing on the photovoltaic performance of the solar cells fabricated using four different photoelectrodes was studied using the photocurrent density versus photovoltage curves. Annealing apparently improved the photovoltaic performance of photoanodes. The best performance was obtained for cell fabricated using annealed TiO 2 /Bi 2 S 3 photoanode after 30 min sensitization time showing V oc * 0.37 mV, J sc * 0.52 mA/cm 2 , FF * 68 and 0.43 %.

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Solution‐Processed Heterojunction Solar Cells Based on p‐type PbS Quantum Dots and n‐type Bi₂S₃ Nanocrystals

Cited by 188 publications

References 30 publications

NH₂CH═NH₂PbI₃: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

NH₂CH═NH₂PbI₃: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

Effect of Electrical Contact on the Performance of Bi₂S₃ Single Nanowire Photodetectors

TiO2 photoanode sensitized with nanocrystalline Bi2S3: the effect of sensitization time and annealing on its photovoltaic performance

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Solution‐Processed Heterojunction Solar Cells Based on p‐type PbS Quantum Dots and n‐type Bi2S3 Nanocrystals

Cited by 188 publications

References 30 publications

NH2CH═NH2PbI3: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

NH2CH═NH2PbI3: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

Effect of Electrical Contact on the Performance of Bi2S3 Single Nanowire Photodetectors

TiO2 photoanode sensitized with nanocrystalline Bi2S3: the effect of sensitization time and annealing on its photovoltaic performance

Contact Info

Product

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Solution‐Processed Heterojunction Solar Cells Based on p‐type PbS Quantum Dots and n‐type Bi₂S₃ Nanocrystals

NH₂CH═NH₂PbI₃: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

NH₂CH═NH₂PbI₃: An Alternative Organolead Iodide Perovskite Sensitizer for Mesoscopic Solar Cells

Effect of Electrical Contact on the Performance of Bi₂S₃ Single Nanowire Photodetectors