Review of current progress in hole-transporting materials for perovskite solar cells

Mahajan, Prerna; Padha, Bhavya; Verma, Sonali; Gupta, Vinay; Datt, Ram; Tsoi, Wing Chung; Satapathi, Soumitra; Arya, Sandeep

doi:10.1016/j.jechem.2021.12.003

Cited by 73 publications

(51 citation statements)

References 236 publications

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“…8 shows a diagram of an “efficiency tree” that presents the best efficiency levels (>21%) of the HTMs applied to PSCs to date. 39,40 In this respect, spiro-OMeTAD is recognized as the benchmark HTM in the field, since it efficiently transports holes to the counter electrode and minimizes resistance and recombination losses.…”

Section: Introductionmentioning

confidence: 99%

The evolution of triphenylamine hole transport materials for efficient perovskite solar cells

et al. 2022

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Section: Introductionmentioning

confidence: 99%

The evolution of triphenylamine hole transport materials for efficient perovskite solar cells

et al. 2022

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“…Hence, a rational design of the OCTMs is needed to achieve high mobility as well as appropriate band alignment with the perovskite layer and electrodes to maximize the PCEs of the devices. In general, a desirable OCTM should meet several requirements including (i) favorable energy level alignment with high selectivity of one type of charge carrier over the other, 18 (ii) thermally and photochemically stable to minimize reactions with surrounding layers, 19 (iii) excellent film-forming properties, 20 and (iv) good transporting properties to promote faster charge transporting toward respective electrodes.…”

Section: Introductionmentioning

confidence: 99%

Configurable Organic Charge Carriers toward Stable Perovskite Photovoltaics

et al. 2022

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Due to their solution processability and unique photoelectric characteristics, perovskite solar cells (PSCs) have shown considerable promise in the area of renewable energy. Although their power conversion efficiency (PCE) has risen from 3.8% to 25.7% in only a few years, their short lifetime and high material prices continue to be key roadblocks to commercial viability. Charge transporting materials (CTMs), such as hole/electron transporting materials, are critical components in PSCs because they not only govern hole or electron extraction and transporting from the perovskite layer to the electrodes but also protect the perovskite from direct contact with the ambient environment. CTMs are split into two types: inorganic CTMs (ICTMs) and organic CTMs (OCTMs). Because of their inexpensive prices, well-adjusted energy levels, and low temperature solution-processed features, OCTMs have been more frequently explored and employed than ICTMs. Various forms of OCTMs with more straightforward synthetic pathways and better performance have been thoroughly researched. Recent achievements in the development of OCTMs will be discussed and evaluated on a molecular level in this study, which will include a systematic categorization of OCTMs based on molecular functionalization techniques. In order to achieve highly efficient and stable PSCs, we will present insights on the structure–property relationship in the design of OCTMs as well as device stability. We hope that this analysis will serve as a comprehensive reference to molecular design guidelines for various types of OCTMs, spurring greater research toward designing highly efficient and OCTMs for stable PSCs.

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“…PSCs have attained enormous research curiosity due to organo-lead halide perovskite materials having favorable optoelectronic properties such as a high absorption coefficient, high charge carrier mobilities, low trap density, extended carrier recombination time, etc. [4][5][6][7][8] In 2009, a major breakthrough was achieved in PSCs after the introduction of organometal halide perovskites as visible light sensitizers. [9] Furthermore, the power conversion efficiency (PCE) of PSCs has been reported to be enhanced by more than 25% within one decade.…”

Section: Introductionmentioning

confidence: 99%

Downconversion Materials for Perovskite Solar Cells

et al. 2022

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Perovskite solar cells (PSCs) have made game‐changing progress in the last decade and reached a power conversion efficiency (PCE) of up to 25%. Furthermore, the development of material chemistry, structure design, active layer composition, process engineering, etc. has contributed to improving PSCs’ stability. The significant PCE losses experienced by PSCs are related to spectral mismatch between the incident solar spectra and absorption range of the active layer, which thereby limits the PCE. Besides PSCs’ performance, the photoinduced degradation is also a major concern. Recently, lanthanide (rare‐earth) and nonlanthanide‐based downconversion (DC) materials have been introduced to resolve these spectral mismatch losses as well as reduce the photoinduced degradation. The DC materials improve the photovoltaic performance by converting ultraviolet (UV) light to visible, also providing UV shielding, and thus contribute to increasing the efficiency as well as stability of PSCs. Moreover, the Shockley–Queisser efficiency limit of the solar cell can be crossed with the help of DC materials. In this review, the importance, processing, and the reported DC materials for PSCs are thoroughly discussed. Furthermore, the development of DC materials and their impact on PSCs’ performance and stability, along with their future perspectives, are focused.

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Review of current progress in hole-transporting materials for perovskite solar cells

Cited by 73 publications

References 236 publications

The evolution of triphenylamine hole transport materials for efficient perovskite solar cells

The evolution of triphenylamine hole transport materials for efficient perovskite solar cells

Configurable Organic Charge Carriers toward Stable Perovskite Photovoltaics

Downconversion Materials for Perovskite Solar Cells

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