Efficient inorganic solid solar cells composed of perovskite and PbS quantum dots

Li, Yi; Zhu, Jun; Huang, Yang; Wei, Jian; Liu, Feng; Shao, Zhipeng; Hu, Linhua; Chen, Shuanghong; Yang, Shangfeng; Tang, Junwang; Yao, Jianxi; Dai, Songyuan

doi:10.1039/c5nr00420a

Cited by 76 publications

(44 citation statements)

References 29 publications

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“…Such systems have recently emerged as a new research hotspot, the attention focused mainly on combinations of PbS or PbSe NCs with Pb-based perovskites. In particular, PbS NCs introduced into MAPI-based solar cells were found to act simultaneously as a co-absorber and an HTL, rendering the use of additional organic hole transporting materials superfluous [211–212]. A shell of MAPI on the surface of PbS NCs was found to act as an efficient electron acceptor and a passivating agent, minimizing the recombinational losses in lead sulfide NCs [213–214].…”

Section: Reviewmentioning

confidence: 99%

Lead-free hybrid perovskites for photovoltaics

Stroyuk¹

2018

Beilstein J. Nanotechnol.

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This review covers the state-of-the-art in organo–inorganic lead-free hybrid perovskites (HPs) and applications of these exciting materials as light harvesters in photovoltaic systems. Special emphasis is placed on the influence of the spatial organization of HP materials both on the micro- and nanometer scale on the performance and stability of perovskite-based solar light converters. This review also discusses HP materials produced by isovalent lead(II) substitution with Sn2+ and other metal(II) ions, perovskite materials formed on the basis of M3+ cations (Sb3+, Bi3+) as well as on combinations of M+/M3+ ions aliovalent to 2Pb2+ (Ag+/Bi3+, Ag+/Sb3+, etc.). The survey is concluded with an outlook highlighting the most promising strategies for future progress of photovoltaic systems based on lead-free perovskite compounds.

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Section: Reviewmentioning

confidence: 99%

Lead-free hybrid perovskites for photovoltaics

Stroyuk¹

2018

Beilstein J. Nanotechnol.

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“…The bilayer structure increases the complexity of the device structure but also need to prevents impairment of the perovskite layer during film processing of the PbS QD layer. Additionally, many studies have focused on utilizing the excellent hole‐transporting capability of PbS QDs as the p‐type hole‐transporting layer for perovskites, but this technique does not utilize the NIR absorption ability of PbS QDs to extend the spectral response range …”

Section: Introductionmentioning

confidence: 99%

“…These excellent studies have realized the hybridization of PbS QDs and perovskite, but the application of hybrid perovskite:PbS QD structures in Vis–NIR PePDs is still obstructed by several challenging issues: (i) The mechanism of charge carrier transfer between the doped PbS QDs and the perovskite has not been revealed. (ii) In these reports, small‐diameter PbS QDs, which can only improve visible‐region absorption, were doped into perovskite . Therefore, this problematic issue must be solved by using large‐diameter PbS QDs to expand NIR absorption.…”

Section: Introductionmentioning

confidence: 99%

Efficient Visible–Near‐Infrared Hybrid Perovskite:PbS Quantum Dot Photodetectors Fabricated Using an Antisolvent Additive Solution Process

Zhao

Huang

Qin

et al. 2018

Advanced Optical Materials

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Organometal lead‐halide perovskites demonstrate excellent photovoltaic performance in the visible (Vis) region. However, their lack of response in the near‐infrared (NIR) region limits their applications in broadband photodetectors. Herein, an efficient Vis–NIR perovskite photodetector (PePD) created by doping PbS quantum dots (QDs) in perovskite precursors via an antisolvent additive solution process is reported. By changing the volume of the antisolvent additive, perovskite hybrid films of MAPbI3:PbS QDs with good crystallinity and uniform grain size are created. The resultant Vis–NIR PePD exhibits a specific detectivity of 1012 and 1011 Jones in the visible and NIR regions, respectively. These results suggest that the antisolvent additive solution process can disperse PbS QDs between perovskite grain boundaries and control the perovskite crystallinity and morphology, providing a simple method to broaden the spectral response range of PePDs.

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“…J‐V curves revealed that PCE of PSCs can be tuned by modifying the sizes of PbS QDs via energy levels of PbS QD alignment with the perovskite (Figure c). Subsequently, Dai and co‐workers also developed the hybrid PSCs using colloidal PbS QDs as inorganic HTM and showed the efficiency nearly 8 % with good stability . In this report, the devices were fabricated by optimizing the thickness of PbS QDs using two‐step coating method and achieved a PCE of 7.8 %, whereas one‐step method gave 4.73 %.…”

Section: Inorganic Htm Based Pscsmentioning

confidence: 89%

Emerging of Inorganic Hole Transporting Materials For Perovskite Solar Cells

Rajeswari

Mrinalini

Prasanthkumar

et al. 2017

The Chemical Record

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Hole transporting material (HTM) is a significant component to achieve the high performance perovskite solar cells (PSCs). Over the years, inorganic, organic and hybrid (organic-inorganic) material based HTMs have been developed and investigated successfully. Today, perovskite solar cells achieved the efficiency of 22.1 % with with 2,2',7,7'-tetrakis(N,Ndi-p-methoxyphenyl-amine) 9,9-spirobifluorene (spiro-OMeTAD) as HTM. Nevertheless, synthesis and cost of organic HTMs is a major challenging issue and therefore alternative materials are required. From the past few years, inorganic HTMs showed large improvement in power conversion efficiency (PCE) and stability. Recently CuO x reached the PCE of 19.0% with better stability. These developments affirms that inorganic HTMs are better alternativesto the organic HTMs for next generation PSCs. In this report, we mainly focussed on the recent advances of inorganic and hybrid HTMs for PSCs and highlighted the efficiency and stability of PSCs improved by changing metal oxides as HTMs. Consequently, we expect that energy levels of these inorganic HTMs matches very well with the valence band of perovskites and improved efficiency helps in future practical deployment of low cost PSCs.

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Efficient inorganic solid solar cells composed of perovskite and PbS quantum dots

Cited by 76 publications

References 29 publications

Lead-free hybrid perovskites for photovoltaics

Lead-free hybrid perovskites for photovoltaics

Efficient Visible–Near‐Infrared Hybrid Perovskite:PbS Quantum Dot Photodetectors Fabricated Using an Antisolvent Additive Solution Process

Emerging of Inorganic Hole Transporting Materials For Perovskite Solar Cells

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