Designing Large-Area Single-Crystal Perovskite Solar Cells

Jiang, Xiaomei; Fu, Xiuwei; Ju, Dianxing; Yang, Shuang; Chen, Zhaolai; Tao, Xiaofeng

doi:10.1021/acsenergylett.0c00436

Cited by 51 publications

(58 citation statements)

References 31 publications

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“…The grain boundaries and crystal surfaces of polycrystalline thin films have inclusion high-density charge traps, which consequently result in the high resistance of perovskite thin films. However, perovskite single crystals have been proven to be able to change their photoelectronic properties by doping due to their high crystallinity, superior optical and electrical properties, and enhanced stability (Jiang et al, 2010 ; Zhou et al, 2015 ; Cheng et al, 2019 ; Gong et al, 2019 ; Chen et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Highly Conductive P-Type MAPbI3 Films and Crystals via Sodium Doping

et al. 2020

Front. Chem.

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To regulate the optical and electrical properties of the crystals and films of the intrinsic methylammonium lead iodide (CH 3 NH 3 PbI 3 ), we dope them with sodium (Na) by selecting sodium iodide (NaI) as a dopant source. The highly conductive p-type sodium-doped CH 3 NH 3 PbI 3 (MAPbI 3 : Na) perovskite single crystals and thin films are successfully grown using the inverse temperature crystallization (ITC) method and antisolvent spin-coating (ASC) method, respectively. With the increase of Na + doping concentration, the grain size of the film increases, the surface becomes smoother, and the crystallinity improves. Hall effect results demonstrate that both the MAPbI 3 : Na thin films and single crystals change their quasi-insulating intrinsic conductivity to a highly conductive p-type conductivity. The room-temperature photoluminescence (PL) peaks of doped MAPbI 3 films slightly blue shift, while the photocarriers' lifetime becomes longer. The optical fingerprints of the doped levels in MAPbI 3 : Na perovskites can be identified by temperature-dependent PL. Obvious fingerprints of Na-related acceptor (A 0 X) levels in the doped MAPbI 3 : Na were observed at 10 K. These results suggest that sodium doping is an effective way to grow highly conductive p-type MAPbI 3 perovskites.

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Section: Introductionmentioning

confidence: 99%

Highly Conductive P-Type MAPbI3 Films and Crystals via Sodium Doping

et al. 2020

Front. Chem.

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“…4. SC films exhibit far better properties than PC films, but are often thicker (53). It is therefore essential to develop ways to further reduce the thickness of the films to match di usion length, that is required to build e cient perovskite SC solar cells.…”

Section: Summary Of the Growth Methodsmentioning

confidence: 99%

“…However, in addition to STL being relatively long, it can induce the nucleation of defects, due to the high growth temperature (≥100 ¶ C is typical) (53)(54)(55) or due to the phase transition from cubic-MAPI to tetragonal-MAPI during cooling (53).…”

Section: Solution Temperature Lowering -Stlmentioning

confidence: 99%

Monocrystalline Methylammonium Lead Halide Perovskite Materials for Photovoltaics

Capitaine

Sciacca

2021

Advanced Materials

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Lead halide perovskite solar cells have been gaining more and more interest. In only a decade, huge research efforts from interdisciplinary communities enabled enormous scientific advances that rapidly led to energy conversion efficiency near that of record silicon solar cells, at an unprecedented pace. However, while for most materials the best solar cells were achieved with single crystals (SC), for perovskite the best cells have been so far achieved with polycrystalline (PC) thin films, despite the optoelectronic properties of perovskite SC are undoubtedly superior. Here, by taking as example monocrystalline methylammonium lead halide, the authors elaborate the literature from material synthesis and characterization to device fabrication and testing, to provide with plausible explanations for the relatively low efficiency, despite the superior optoelectronics performance. In particular, the authors focus on how solar cell performance is affected by anisotropy, crystal orientation, surface termination, interfaces, and device architecture. It is argued that, to unleash the full potential of monocrystalline perovskite, a holistic approach is needed in the design of next‐generation device architecture. This would unquestionably lead to power conversion efficiency higher than those of PC perovskites and silicon solar cells, with tremendous impact on the swift deployment of renewable energy on a large scale.

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“…[ 116 ] And the reduction of crystal thickness is the pivotal strategy to improve the performance of the SC‐based solar cells. [ 117 ] To overcome this obstacle, thin SCs were prepared using the aforementioned space‐limited methods, [ 34a ] splitting bulk SCs with a diamond wire slicing machine, [ 54,116 ] or directly growing thin SCs on HTLs. [ 60 ] Based on the suitable bandgap and moderate thickness, SC solar cells should theoretically have the potential to surpass their polycrystalline counterparts.…”

Section: Applicationmentioning

confidence: 99%

“…And as a result, the MAPbI 3 champion device showed the highest PCE of 20.04%, [ 61 ] which proved that the reduction of crystal thickness is the key to improving the performance of the SC‐based solar cells. [ 117 ]…”

Section: Applicationmentioning

confidence: 99%

Perovskite Single Crystals: Synthesis, Optoelectronic Properties, and Application

Han

et al. 2020

Adv Funct Materials

103

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Recently, lead halide perovskite (PVSK) polycrystalline films have drawn much attention as photoactive material and scored tremendous achievements in solar cells, photodetectors, light‐emitting diodes, and lasers owing to their engrossing optoelectronic properties and facile solution‐processed fabrication. However, large amounts of grain boundaries unfavorably induce ion migration, surface defect, and poor stability, impeding PVSK polycrystalline film‐based optoelectronic devices from practical application. In comparison with the polycrystalline counterparts, PVSK single crystals (SCs) with lower trap density serve as a better platform for not only fundamental research but also device applications. In light of this, the idea of using PVSK single crystals (SCs) to construct the optoelectronic devices is then proposed. Since then, a series of synthesis methods of PVSK SCs have emerged. In this review, recent progress of synthesis method of PVSK SCs is tried to be summarized and their advantages and limitations are analyzed. And then, the optoelectronic properties including carrier dynamic, defects, ion migration, and instability issues in these 3D and 2D PVSK SCs are overviewed and accordingly the proper device configurations of corresponding solar cells, photodetectors, X‐ray, γ‐ray detectors, etc., are proposed. It is believed that this review can provide the guidance for the further development of PVSK SCs and their applications.

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Designing Large-Area Single-Crystal Perovskite Solar Cells

Cited by 51 publications

References 31 publications

Highly Conductive P-Type MAPbI3 Films and Crystals via Sodium Doping

Highly Conductive P-Type MAPbI3 Films and Crystals via Sodium Doping

Monocrystalline Methylammonium Lead Halide Perovskite Materials for Photovoltaics

Perovskite Single Crystals: Synthesis, Optoelectronic Properties, and Application

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