Semitransparent Fully Air Processed Perovskite Solar Cells

Bu, Lingling; Liu, Zonghao; Zhang, Meng; Li, Wenhui; Zhu, Aili; Cai, Fensha; Zhao, Zhixin; Zhou, Yinhua

doi:10.1021/acsami.5b04040

Cited by 81 publications

(75 citation statements)

References 47 publications

(80 reference statements)

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“…[11–13] Similarly, thin films of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) were deposited onto the hole transporting material of PSCs by transfer-lamination. [14,15]…”

Section: Introductionmentioning

confidence: 99%

“…[16–18] It is well known that halide perovskites are sensitive to polar solvents and humidity. [14,15] Therefore, these lamination concepts cannot be directly adopted for the fabrication of PSCs. Recently, however, organic-solvent based PEDOT was successively coated directly on the perovskite and was tested as hole-extraction layer and interlayer between the hole-transporting material and a metal grid electrode.…”

Section: Introductionmentioning

confidence: 99%

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A transparent, solvent-free laminated top electrode for perovskite solar cells

Makha

Fernandes

Jenatsch

et al. 2016

Science and Technology of Advanced Materials

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A simple lamination process of the top electrode for perovskite solar cells is demonstrated. The laminate electrode consists of a transparent and conductive plastic/metal mesh substrate, coated with an adhesive mixture of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), PEDOT:PSS, and sorbitol. The laminate electrode showed a high degree of transparency of 85%. Best cell performance was achieved for laminate electrodes prepared with a sorbitol concentration of ~30 wt% per milliliter PEDOT:PSS dispersion, and using a pre-annealing temperature of 120°C for 10 min before lamination. Thereby, perovskite solar cells with stabilized power conversion efficiencies of (7.6 ± 1.0)% were obtained which corresponds to 80% of the reference devices with reflective opaque gold electrodes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A transparent, solvent-free laminated top electrode for perovskite solar cells

Makha

Fernandes

Jenatsch

et al. 2016

Science and Technology of Advanced Materials

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“…The intensity of these assigned peaks in perovskite increases in the presence of P(VDF‐TrFE), which points its role in inducing high degree of crystallinity. This can be ascribed to the delay in PbI 2 crystallization by the addition of P(VDF‐TrFE), which enhances the interaction between PbI 2 and MAI to allow the formation of MAPbI 3 with improved crystallization due to the ferroelectric properties of the polymer . The diffraction peaks at 37.88° corresponds to the fluorine doped tin oxide (FTO) electrodes.…”

Section: Resultsmentioning

confidence: 99%

Polymer Amplification to Improve Performance and Stability toward Semitransparent Perovskite Solar Cells Fabrication

et al. 2019

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The performance of methylammonium lead triiodide (CH3NH3PbI3)‐based solar cells depends on the crystallization and controlled microstructure. Despite their high performance, long‐term stability is a paramount factor toward large area fabrication and potential industrialization. Herein, poly(vinylidene fluoride–trifluoro ethylene) (P(VDF‐TrFE)) is used as an additive into a low concentration–based perovskite precursor solution to control the crystallinity and microstructure. Perovskite layers of lower thicknesses are derived from low precursor concentration, however, they often suffer from severe voids and roughness. Introducing judicious quantities of P(VDF‐TrFE) improves the surface coverage and smoothness, as well as reduce the grain boundaries in the perovskite. An array of characterization techniques are used to probe the structural, microstructural, and spectroscopic properties. Impedance spectra suggest that the P(VDF‐TrFE) can improve the carrier lifetime and reduce the charge transfer resistance, which in turn allows improvment of photovoltaic performance. For an optimized concentration of P(VDF‐TrFE), the fabricated semitransparent solar cells yield a power conversion efficiency in excess of 10%, which supersedes pristine devices, along with improved stability. The device architecture and the fabrication technique provide an effective route to fabricate cost effective and visible‐light‐semitransparent perovskite solar cells.

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“…[102][103][104][105][106] However, in this approach, the vacuum deposition process is indispensably required for preparing thin metal films and the presence of metallic layers causes inevitable decreases in transmittance. [101] Therefore, a variety of top electrodes including AZO, [107] ITO, [108][109][110] In 2 O 3 :H, [111] PEDOT:PSS, [112,113] graphene, [114] CNT, [115] and MeNWs [87][88][89][91][92][93][94][95]97,[116][117][118][119] have been investigated for fabricating high-performance semi-transparent PSCs. When they are compared in the plot presenting the interdependency between AVT and PCE (Figure 3), it can be noticed that the semi-transparent cells employing AgNW-network top electrodes are in the top-right area, where highly transparent and high-functioning cells are positioned.…”

Section: Semi-transparent Pscsmentioning

confidence: 99%

Metal‐Nanowire‐Electrode‐Based Perovskite Solar Cells: Challenging Issues and New Opportunities

Ahn

Hwang

Jeong

et al. 2017

Advanced Energy Materials

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in PSCs has been accomplished within a relatively short period of time, owing to OMHP's merits for low-cost, large-area, flexible photovoltaic applications; these merits include (i) the precursor chemicals, including organic ammonium halides and lead (tin) halides, for synthesizing the OMHP materials are cost-effective, and the OMHP layers can be readily prepared by simple wet-chemical approaches such as a spin coating or a slot-die coating process; (ii) the processing temperatures are relatively low, below 150 °C, for the formation of well-crystalized OMHP layers, in contrast to other thin-film-based solar cells; (iii) both the high absorption coefficients [6] and high carrier mobilities [7] suggest promising possibilities for highperformance photoactive materials. The PCE certified by National Renewable Energy Laboratory (NREL) reached 22.1% in 2016, [8] which is either comparable to or outperforms the PCEs of other next-generation thin-film solar cells, including CIGS(Se) (22.3%), CZTS/Se (12.6%), CdTe (22.1%), and organic photovoltaics (OPVs, 11.5%).Apart from the race to achieve higher PCE, other important research has been directed toward the development of lead-free OMHP layers, [9] large-area device fabrication, [10,11] a methodology of achieving long-term stability against moisture and irradiation, [12,13] and a way of recycling constituent cell materials. [14] Another fascinating research topic concerns the electrodes for PSCs. To date, vacuum-deposited transparent conductive oxides (TCOs), such as indium tin oxide (ITO) and fluorinated tin oxide (FTO), have been used widely as a large-area window electrode through which light passes. However, TCOs have received criticism in terms of their fabrication cost, brittleness, and the scarcity of raw materials (especially, the indium in ITO). [15] Opaque noble metal electrodes (Au, Ag), which are usually used as a back contact, are also fabricated with a costly vacuum-assisted deposition process. From the viewpoint of cost-effectiveness, both transparent and opaque conventional electrodes apparently represent predominant impediments to the high-throughput fabrication of PSCs, giving rise to a significant demand to replace these conventional electrodes with alternatives.To date, a variety of alternative electrodes have been reported in the literature.

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Semitransparent Fully Air Processed Perovskite Solar Cells

Cited by 81 publications

References 47 publications

A transparent, solvent-free laminated top electrode for perovskite solar cells

A transparent, solvent-free laminated top electrode for perovskite solar cells

Polymer Amplification to Improve Performance and Stability toward Semitransparent Perovskite Solar Cells Fabrication

Metal‐Nanowire‐Electrode‐Based Perovskite Solar Cells: Challenging Issues and New Opportunities

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