Vapor Annealing Controlled Crystal Growth and Photovoltaic Performance of Bismuth Triiodide Embedded in Mesostructured Configurations

Kulkarni, Ashish; Singh, Trilok; Jena, Ajay Kumar; Pinpithak, Peerathat; Ikegami, Machiko; Miyasaka, Tsutomu

doi:10.1021/acsami.8b00430

Cited by 48 publications

(42 citation statements)

References 36 publications

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“…www.advancedsciencenews.com was used to improve the film quality and reproducibility of BiI 3 . [61] The film-based device showed a PCE of 0.5% with TiO 2 mesostructured architecture employing 2,2′,7,7′-tetrakis(N,Ndi-p-methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD) as the HTM. These results indicated that the V oc of BiI 3 -based solar cells is always less than 0.4 V. The V oc loss is much higher than that of lead-containing perovskite solar cell.…”

Section: Solar Cellsmentioning

confidence: 98%

From Pb to Bi: A Promising Family of Pb‐Free Optoelectronic Materials and Devices

Zhang

Liu

et al. 2019

Advanced Energy Materials

135

116

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Lead‐based organic–inorganic hybrid perovskite materials are widely used in optoelectronic devices due to their excellent photophysical properties. However, the main issues which hinder its commercialization are the toxicity caused by lead and the intrinsic instability of the material. Recently, many lead‐free halide materials with good intrinsic stability have been reported, among which bismuth‐based halide materials have attracted extensive research due to their structure and promising optoelectronic properties. In this review, bismuth‐based materials are divided into binary BiX3 (X = I, Br, Cl), ternary AaBibXa+3b (A = Cs, Rb, MA, Ag, etc.), and quaternary A2AgBiX6 (A = Cs, Rb, MA, etc.) according to its elemental composition. The structure and optoelectronic properties of bismuth‐based halide materials, which may be helpful for the development of bismuth‐based halide materials and lead‐free perovskites in the future, are summarized and highlighted.

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Section: Solar Cellsmentioning

confidence: 98%

From Pb to Bi: A Promising Family of Pb‐Free Optoelectronic Materials and Devices

Zhang

Liu

et al. 2019

Advanced Energy Materials

135

116

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“…[11,16] Several strategies for retarding the crystal growth rate of Pb perovskite during annealing,s uch as ionic liquid addition, [37] hot-casting method, [38] and solvent annealing [39][40][41][42] have been reported. [11,16] Several strategies for retarding the crystal growth rate of Pb perovskite during annealing,s uch as ionic liquid addition, [37] hot-casting method, [38] and solvent annealing [39][40][41][42] have been reported.…”

Section: Angewandte Chemiementioning

confidence: 99%

Lead‐Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation

et al. 2018

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Tw osimple methods to improve tin halide perovskite film structure are introduced, aimed at increasing the power conversion efficiency of lead free perovskite solar cells.F irst, ah ot antisolvent treatment (HAT) was found to increase the film coverage and prevent electrical shunting in the photovoltaic device.Second, it was discoveredthat annealing under alow partial pressure of dimethyl sulfoxide vapor increased the average crystallite size. The topographical and electrical qualities of the perovskite films are substantively improved as aresult of the combined treatments,facilitating the fabrication of tin-based perovskite solar cell devices with power conversion efficiencies of over 7%.Metal halide perovskite solar cells (PSCs) have gained tremendous attention in the past few years,w ith certified efficiencies reaching 23.3 %. [1] However,t he toxicity of lead (Pb), commonly used in high efficiency PSCs,r emains as erious problem that hampers the wide application of this "magic" material. Replacing Pb 2+ with environmentally friendly cations,s uch as germanium (II) (Ge 2+ ), tin (II) (Sn 2+ ), and bismuth (III) (Bi 3+ ), is therefore an important priority. [2][3][4][5] Theoretical calculations indicate that the perovskite crystal structure is preserved after metal cation substitution. [6] As the most promising candidate among Pb-free perovskites,t in halide perovskites show suitable band gaps and advantageous optoelectronic properties. [2][3][4][5][6][7] Unfortunately,p ower conversion efficiencies (PCEs) obtained from Sn-based PSCs are much lower than that of their Pb counterpart. Though aS n-based PSC using MASnI 3 as the absorber was first demonstrated in 2014 with ar eported power conversion efficiencyo ver 5%, [8,9] theh ighest PCE achieved for aS n-based PSC to date is still below 10 %. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] Rapid oxidation of Sn 2+ to Sn 4+ in ambient atmosphere dopes the perovskite layer into high conductivity,r esulting in severe electrical shunting. [4,9] Similar shorting issues also predominate when the perovskite film is fabricated with uneven thickness or pinholes,acommon occurrence for Sn-based PSCs. [18] Despite the clear need to improve device performance,only alimited number of groups are investigating Snbased PSC at present. Thed ifficulty in fabricating highquality Sn perovskite films is as ignificant impediment. [15][16][17][18][19] In this paper we focus on the development of reliable procedures for fabricating uniform, continuous," pinhole free" Sn perovskite films with large grain size and good electrical properties-desirable traits which can be expected to lead to efficient and reproducible Sn-based PSCs.T echniques to optimize the formation of nucleation sites and control the crystal growth process are introduced. With the first technique,w hich we call "hot antisolvent treatment" (HAT), antisolvent is pre-heated to improve the film coverage during spin coating,e liminating the large pinholes observed when the antisolvent is used at room t...

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“…The present results would pave the way for exploiting high‐quality photodetecting devices based on large‐area 2DLMs films. What is more, the synthesized BiI 3 films with remarkable response to visible light are also equipped with great potentials in the fields of sensors, solar cells, photovoltaic, photocatalysis, and bismuth‐halide perovskites …”

mentioning

confidence: 99%

High‐Performance Visible‐Light Photodetectors built on 2D‐Nanoplate‐Assembled Large‐Scale BiI₃ Films

Wei

Wang

Yin

et al. 2019

Adv Elect Materials

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detecting abilities over a wide spectral range from ultraviolet to infrared and even terahertz. [8][9][10][11][12] In the past, the investigations on 2DLMs devices (including photodetectors) focused mainly on the nanoscale samples, such as the devices processed on exfoliated monolayers, nanosheets, or nanoplates, for fundamental researches. While recently, driven by the growing demands for practically using of those promising devices, great efforts have been made to prepare large-scale continuous 2DLMs films. [13][14][15] For instance, both chemical vapor deposition and solution-processing methods were used to produce waferscale graphene and TMDs films, [15][16][17] and some novel liquid metal facilitated synthesis approaches were also applied to synthesize large-scale films of 2D metal oxides and their derivatives. [18][19][20][21] Some of those films have been demonstrated beneficial to support the large-area arrays or the integrated devices which require high sample density, good thickness uniformity, and controllable location. [13][14][15][16][17][18][19] Unfortunately, there always remains a trade-off between the film size and the performances of the devices on them. In the aspect of photodetectors, most of the devices built on large-scale films have attenuated qualities comparing with those ones produced on nanoscale samples. [22][23][24] For example, the responsivity of the MoS 2 film photodetectors may decay of two orders of magnitude than that of the nanoscale devices . [8,23] Thus, it still remains a challenge to grow 2DLMs films which guarantee not only large lateral size but also excellent device performances. In view of this, we propose a possible scheme that assembling high-quality nanolayers (which can ensure outstanding photodetecting capability for the nanoscale detectors processed on them) into a nanostructured film may bring out a win-win result between both sides. This idea is implemented by synthesizing large-area films (1 × 1 cm 2 ) made up of vertically grown BiI 3 nanoplates which have been proved to support excellent nanoscale photodetectors. [12] The reproducible and sizeable photoresponses of the photodetectors fabricated on such films demonstrate equivalent performances with the single BiI 3 nanoplate-based ones and indicate hopeful applications of such BiI 3 films for visible-light detecting.As shown in the scanning electron microscopy (SEM) image in Figure 1a, the BiI 3 films used to construct the photodetecting devices consist of a large number of vertical and oblique nanoplates grown via physical vapor deposition (PVD) method. An enlarged SEM image (Figure 1b) revealsThe growth of large-scale films forms the cornerstone for future integrated photodetection applications of 2D materials. However, there is still an unwelcome trade-off between the size of these films and the performances of devices fabricated using them. To deal with this issue, a possible scheme for film assembly is proposed using high-quality nanolayers to achieve both outstanding device performance and large film ar...

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Vapor Annealing Controlled Crystal Growth and Photovoltaic Performance of Bismuth Triiodide Embedded in Mesostructured Configurations

Cited by 48 publications

References 36 publications

From Pb to Bi: A Promising Family of Pb‐Free Optoelectronic Materials and Devices

From Pb to Bi: A Promising Family of Pb‐Free Optoelectronic Materials and Devices

Lead‐Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation

High‐Performance Visible‐Light Photodetectors built on 2D‐Nanoplate‐Assembled Large‐Scale BiI₃ Films

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Vapor Annealing Controlled Crystal Growth and Photovoltaic Performance of Bismuth Triiodide Embedded in Mesostructured Configurations

Cited by 48 publications

References 36 publications

From Pb to Bi: A Promising Family of Pb‐Free Optoelectronic Materials and Devices

From Pb to Bi: A Promising Family of Pb‐Free Optoelectronic Materials and Devices

Lead‐Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation

High‐Performance Visible‐Light Photodetectors built on 2D‐Nanoplate‐Assembled Large‐Scale BiI3 Films

Contact Info

Product

Resources

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High‐Performance Visible‐Light Photodetectors built on 2D‐Nanoplate‐Assembled Large‐Scale BiI₃ Films