Integrated Perovskite/Bulk-Heterojunction toward Efficient Solar Cells

Liu, Yongsheng; Hong, Ziruo; Chen, Qi; Chang, Wen Hsin; Zhou, Huanping; Song, Tze‐Bin; Young, Eric P.; Yang, Yang; You, Jingbi; Li, Gang

doi:10.1021/nl504168q

Cited by 146 publications

(127 citation statements)

References 38 publications

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“…Interestingly, organic bulk heterojunctions have been incorporated into the perovskite solar cells to replace the HTL/ETL [139,140], as shown in Fig. 3.2.…”

Section: Other Configurationsmentioning

confidence: 99%

Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

et al. 2015

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The dawn of a new era in optoelectronic technologies has emerged with the recent development of the organic-inorganic hybrid halide perovskite. Its exceptional attributes, including high carrier mobility, an adjustable spectral absorption range, long diffusion lengths, and the simplicity and affordability of fabrication render it one of the most exceptional and market-competitive optoelectronic materials for applications in photovoltaics, light emitting diodes (LED), photodetectors, lasers, and more. Moreover, its versatility in device architecture and ability to achieve relatively high performance devices via various processing techniques makes perovskites a highly promising material for various practical applications. Here, we review the organic-inorganic hybrid halide perovskite and delve into its recent progress and relevant applications. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…Interestingly, organic bulk heterojunctions have been incorporated into the perovskite solar cells to replace the HTL/ETL [139,140], as shown in Fig. 3.2.…”

Section: Other Configurationsmentioning

confidence: 99%

Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

et al. 2015

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“…Yang et al made integrated cells by using DOR3T-TBDT or PBDTT-SeDPP as donors in BHJ layer and achieved PCEs of 14.3% and 12.0%, respectively. [ 86 ] The contribution of BHJ to the photocurrent of the integrated cell is the limiting factor. Developing suitable high-performance BHJ can further enhance the photocurrent and PCE of the integrated cells.…”

Section: Perovskite/bulk Heterojunction Integrated Cellsmentioning

confidence: 99%

Advances in Perovskite Solar Cells

et al. 2016

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widely commercialized, but possiblities to increase their performance are limited, because nowadays the so-called balance of systems (BoS) cost of PV modules makes up most of the cost. [ 1 ] As much of the BoS scales with area, performance improvement seems the only way to decrease the cost of PV power further. Therefore, new PV cells are sought either to allow for higher effi ciencies than what is possible with Si PV without cost increase, or, as explained in section 3.4, to provide lowcost added effi ciency to Si PV. Emerging solar cells such as dye-sensitized, bulkheterojunction and quantum-dot solar cells can be fabricated via low-temperature solution processing, that holds promise for low-cost large scale application, but best power conversion effi ciencies (PCE) are half of, or less than that of the best commercial Si PV cells. [ 2 ] This is where perovskite solar cells enter, as for the fi rst time in PV history it is possible to produce high-effi ciency cells at low monetary and energy costs, with apparent ease of fabrication from earth-abundant, readily available raw materials. The PCE for perovskite solar cells has increased from 2.2% to 20.1% since 2006, showing an inviting vista of commercialization. [ 3,4 ] Perovskite solar cells are named after the crystal structure of the light absorbers, the structure of the mineral CaTiO 3 . Many compounds with ABX 3 stoichiometry take this structure, where A and B are 12-and 8-coordinates cations, respectively, and X is the anion. [ 4 ] Of the many ABX 3 only few are suitable to be efficient light absorbers for solar cells due to requirements such as appropriate bandgap for good light-harvesting ability, energy level/band alignment with contacting materials, long charge carrier lifetime, τ, and high mobility, µ. Perovskites generally have divalent anions, and the strong electrostatic bonding mostly makes their (high) bandgaps not suitable for solar PV. Mitzi et al. initiated using perovskites containing halides, ammonium cations and Sn 2+ in optoelectronic devices, which formed the basis for the development of perovskites for solar cells. [ 5 ] Here we will focus on such halide perovskites, together with one divalent (Pb 2+ ) and one monovalent (mostly CH 3 NH 3 + ) cation. The most effi cient halide perovskite solar absorbers consist of organic ammonium ions (CH 3 NH 3 + or NH = CHNH 3 + ), Pb 2+ and halide ions (I − , Br − ).[ 4 ] CH 3 NH 3 PbI 3 possesses broad and intense light absorption. It is an ambipolar semiconductor (can be n-or p-type), and its charge carriers can have long diffusion lengths and lifetimes, which allow excellent PCE for solar cells made with it. [3][4][5][6] Another advantage of perovskite absorbers is the low-temperature solution-processing ability, which helps

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“…Films prepared in this method are highly flexible and have an ITO-comparable sheet resistance (<80 Ω sq. 2019, 9,1801312 of CO 2 is to tuned to control the chirality and diameter range of the products (Figure 2g-i). Therefore, these films are perfect for the electrode applications.…”

Section: Gas-phase Growthmentioning

confidence: 99%

“…[26] Unlike CO and methane, which are toxic and requires a high temperature, respectively, alcohol is an environmentally friendly and cheap carbon source; in the case of CoMoCAT process, CO is used as a carbon source and Adv. 2019, 9,1801312 Figure 2. 2019, 9,1801312 Figure 2.…”

Section: Supported Growthmentioning

confidence: 99%

“…Among different types of photovoltaics, silicon solar cells give power conversion efficiencies (PCEs) of over 26% with excellent durability. Furthermore, tandem photovoltaics, [7] which are combined solar cells of PSCs, silicon solar cells, [8] or OSCs, [9,10] are another new and promising category for the future photovoltaic technology. However as recent technologies, such as flexible smartphones and IoT (internet of things), evolve into more versatile and portable electronics, there is a shift of demand from performance-centric technologies to versatility-oriented technologies.…”

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confidence: 99%

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Single‐Walled Carbon Nanotubes in Emerging Solar Cells: Synthesis and Electrode Applications

Jeon

Xiang

Shawky

et al. 2018

Advanced Energy Materials

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years, because of growing concerns over the energy security. Among different types of photovoltaics, silicon solar cells give power conversion efficiencies (PCEs) of over 26% with excellent durability. This technology has already reached the market, and the products are readily available. However as recent technologies, such as flexible smartphones and IoT (internet of things), evolve into more versatile and portable electronics, there is a shift of demand from performance-centric technologies to versatility-oriented technologies. In other words, the paradigm is shifting to flexible, wearable, and light-weight electronic devices. Energy-generating devices are also following the same path. This means that the thin-film solar cell technologies, such as organic solar cells (OSCs) [1][2][3] and perovskite solar cells (PSCs), [4,5] are considered to be the wave of the future with their critical attributes of being ultrathin (<1 mm), light-weight, and solution-processable. [6] These emerging thin-film solar cells have the potential to equal or surpass the PCE of silicon solar cells while having major advantages in terms of production cost, enhanced design and a variety of new functionalities. Furthermore, tandem photovoltaics, [7] which are combined solar cells of PSCs, silicon solar cells, [8] or OSCs, [9,10] are another new and promising category for the future photovoltaic technology. Despite different names of solar cell types, the device structure is largely the same. They commonly share the typical configuration of one photoactive layer in the center, two charge selective layers above and below the active layer, and two electrodes at each end-at least one of which has to be transparent so that sunlight can pass through it. While there has been an intense efficiency race within the emerging thin-film solar cell community, less attention has been paid to other features, such as flexibility and stability. These traits can be enhanced by using new electrodes and charge-selective layers. Not only the functionalities but also photovoltaic performance is heavily dependent on the electrode and the charge-selective layers. Many scientists around the world, thus far, have focused on these layers by developing novel materials and modifying conventional materials to push the boundaries of current thin-film photovoltaic technology.Abundant and mechanically resilient carbon allotropes are composed of carbon atoms only, yet manifest different electronic properties depending on their configurations and arrangements. Of the carbon species, carbon nanotubes (CNTs) are promising materials to be incorporated into the thin-film solar cells owing to a wide range of properties ranging from conductors to semiconductors with different bandgaps based Emerging solar cells, namely, organic solar cells and perovskite solar cells, are the thin-film photovoltaics that have light to electricity conversion efficiencies close to that of silicon solar cells while possessing advantages in having additional functionalities, facile-processability, an...

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Integrated Perovskite/Bulk-Heterojunction toward Efficient Solar Cells

Cited by 146 publications

References 38 publications

Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

Advances in Perovskite Solar Cells

Single‐Walled Carbon Nanotubes in Emerging Solar Cells: Synthesis and Electrode Applications

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