Centimeter size BiSeI crystal grown by physical vapor transport method

Xiao, Bao; Zhu, Mengqin; Long, Jianyou; Zhang, Bin-Bin; Dong, Jiangpeng; Yu, Jiao; Sun, Qihao; Wang, Jie; Ye, Xu

doi:10.1016/j.jcrysgro.2019.04.003

Cited by 14 publications

(13 citation statements)

References 29 publications

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“…2(b). Since the decomposition temperature of SbSeI is ∼560 °C, 10 combining the conclusion of a previous study, 17 the growth temperatures were set lower than the melting points of SbSeI and BiSeBr (407 °C and 510 °C, respectively).…”

Section: Resultssupporting

confidence: 52%

“…2(a) shows the grown BiSeI single crystals in the ampoule. The size up to 43 × 4 × 0.4 mm 3 is reached, and the mirror surface with a crystallographic orientation as (00l) 17 can be seen in Fig. 2(b).…”

Section: Resultsmentioning

confidence: 94%

“…Over the past decades, various methods were developed to grow A V B VI C VII single crystals including melt growth, [11][12][13] solution growth 14,15 and vapor growth methods. [16][17][18] Compared with melt methods, the growth temperature could be greatly decreased by the use of vapor methods that can avoid the decomposition of A V B VI C VII compounds. 19 For solution methods, the size of the resulting as-grown crystals is limited, 14 which is attributed to the complex chemical reaction and the formation of excessive nucleation points during the growth.…”

Section: Introductionmentioning

confidence: 99%

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Growth of bismuth- and antimony-based chalcohalide single crystals by the physical vapor transport method

Bai¹,

Xiao²,

Liu³

et al. 2022

CrystEngComm

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Section: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Growth of bismuth- and antimony-based chalcohalide single crystals by the physical vapor transport method

Bai¹,

Xiao²,

Liu³

et al. 2022

CrystEngComm

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“…Thus, the intrachain interaction is stronger than the interchain interaction, which has also been confirmed by the lower cut‐off frequency and phonon velocity along the interchain directions 234 . These weak interchain interactions imply that it is difficult to grow larger crystals of this system 241 . Using the physical vapor transport method, needle‐like crystals can be obtained 234,241 .…”

Section: Intrinsically Low κLat For Heat Transportmentioning

confidence: 74%

“…These weak interchain interactions imply that it is difficult to grow larger crystals of this system 241 . Using the physical vapor transport method, needle‐like crystals can be obtained 234,241 . The morphology of BiSeI nanowires also reflects weak interactions between chains (Figure 15(B)).…”

Section: Intrinsically Low κLat For Heat Transportmentioning

confidence: 99%

Slowing down the heat in thermoelectrics

Qin

Wang

Zhao

2021

InfoMat

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Heat transport has various applications in solid materials. In particular, the thermoelectric technology provides an alternative approach to traditional methods for waste heat recovery and solid‐state refrigeration by enabling direct and reversible conversion between heat and electricity. For enhancing the thermoelectric performance of the materials, attempts must be made to slow down the heat transport by minimizing their thermal conductivity (κ). In this study, a continuously developing heat transport model is reviewed first. Theoretical models for predicting the lattice thermal conductivity (κlat) of materials are summarized, which are significant for the rapid screening of thermoelectric materials with low κlat. Moreover, typical strategies, including the introduction of extrinsic phonon scattering centers with multidimensions and internal physical mechanisms of materials with intrinsically low κlat, for slowing down the heat transport are outlined. Extrinsic defect centers with multidimensions substantially scatter various‐frequency phonons; the intrinsically low κlat in materials with various crystal structures can be attributed to the strong anharmonicity resulting from weak chemical bonding, resonant bonding, low‐lying optical modes, liquid‐like sublattices, off‐center atoms, and complex crystal structures. This review provides an overall understanding of heat transport in thermoelectric materials and proposes effective approaches for slowing down the heat transport to depress κlat for the enhancement of thermoelectric performance.

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2D BiSeI Nanosheets for Broadband Self‐Powered Photoelectrochemical Photodetector

Yang

et al. 2023

Physica Rapid Research Ltrs

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Broadband photodetectors are essential for the integrated design of next‐generation optical detector devices. Ternary 2D bismuth sulfide semiconductor (BiXI, X = S, Se, Te) is an ideal candidate for broadband photoelectric detection due to its narrow bandgap and excellent electrical transport performance. Here, BiSeI is grown by chemical vapor transport (CVT) method and used in photoelectrochemical (PEC) photodetection. The PEC‐type photodetector based on BiSeI nanosheets has a broadband detection ranging from 350 to 900 nm, displaying a high responsivity of 2.88 mA W−1, a high detectivity of 1.10 × 1010 Jones and a fast response time of 7/16 ms at a bias voltage of 0.5 V. Furthermore, the device also exhibits a negligible current density loss after three months, which indicates that it has good stability against air and moisture. In addition, the photodetector can work without bias potential, indicating that it is a good self‐powered device. The results demonstrate that BiSeI is a potential material in self‐powered PEC photodetector.

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Centimeter size BiSeI crystal grown by physical vapor transport method

Cited by 14 publications

References 29 publications

Growth of bismuth- and antimony-based chalcohalide single crystals by the physical vapor transport method

Growth of bismuth- and antimony-based chalcohalide single crystals by the physical vapor transport method

Slowing down the heat in thermoelectrics

2D BiSeI Nanosheets for Broadband Self‐Powered Photoelectrochemical Photodetector

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