An ion migration induced self-powered photoelectrical detector based on FAPbBr<sub>3</sub> single crystals

Dong, Song Tao; Fu, Zhuang; Yu, Miao-Cheng; Jiang, Jia-Ling; Jin, Xiaoyun; Guo, Yuhang; Wang, Lei; Zhang, Yamei

doi:10.1039/d1ce01707a

Cited by 6 publications

(6 citation statements)

References 35 publications

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“…4b, the I ON / I OFF ratio reached as high as 22 240 at a bias of 30 V, which is a dramatic increase compared to previously reported FAPbBr 3 SCs with values of 30–90 (ref. 37) and 100–1000. 14 Fig.…”

Section: Resultsmentioning

confidence: 99%

Single nucleation of Cl-doped FAPbBr₃ with inhibited ion migration for ambipolar radiation detection

Zhang,

Liu,

Zhang

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Single nucleation of Cl-doped FAPbBr₃ with inhibited ion migration for ambipolar radiation detection

Zhang,

Liu,

Zhang

et al. 2024

J. Mater. Chem. A

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“…[ 26,27 ] All the XRD peaks are slightly shifted toward higher angle compared with the pure phase FAPbI 3 , due to the smaller r Br than r I. [ 16,28–30 ]…”

Section: Resultsmentioning

confidence: 99%

“…[26,27] All the XRD peaks are slightly shifted toward higher angle compared with the pure phase FAPbI 3 , due to the smaller r Br than r I. [16,[28][29][30] The optical and electrical properties of the as-fabricated FASC were also investigated. The optical bandgap(Eg) of 2.043 eV is obtained from the Tauc plot of the measured absorption spectrum according to Kubellka-Munk equation (Figure 1d): [31] (𝛼h𝜈) 2…”

Section: Resultsmentioning

confidence: 99%

Self‐Driven Narrow‐Band Photodetector based on FAPbBr_2.5I_0.5 Single Crystal for Yellow Light Intensity Meter Application

Liang

Zhou

et al. 2023

Adv Funct Materials

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Accurate and quantifiable detection of the specific wavelength is vital in different application scenarios. Herein, a novel self‐driven narrowband photodetector (NB‐PD) based on CH(NH2)2PbBr2.5I0.5 crystal film is employed for building a yellow light intensity meter. By taking advantage of the carrier collection narrowing mechanism, a sensitive NB‐PD with peak response at 580 nm and the full‐width at half‐maximum of 23 nm are successfully achieved. The asymmetric contact electrodes of Ag/Pt allow the device to work without bias. The optoelectronic analysis demonstrates that the NB‐PD achieves a maximum responsivity of 59.89 mA W−1, a fast response speed of 202/331 µs, and a high on/off ratio of 636 at zero bias. Then, through introducing the back‐end circuit, a yellow light intensity meter is constructed with the NB‐PD. The absolute error and relative error of the light meter are estimated to be lower than 0.08 mW cm−2 and 4.22%, respectively, indicating the good capability for the yellow light monitoring. Given the simple device geometry and good performance, the achieved yellow light intensity meter can also be extended to other narrowband light detection system.

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“…As shown in Figure 6a and S9, the photoresponse of the AZO/FPB-4/Au junction device was measured from 1 to 30 V under 405 nm light illumination (15.6 mW•cm −2 ). The ratio of photocurrent (I ON )/dark current (I OFF ) reaches as high as 10956 at a bias of 10 V, which is a significant increase compared to that from the previous FPB SC with values of 30−90 32 and 100−1000 12 grown from the ITC method. The higher I ON /I OFF ratio of the FPB planar device is attributed to the low trap density and high crystalline quality, which also demonstrate that the FAPbBr 3 SC grown by the seeded solution method is qualified for optoelectronic applications.…”

Section: Resultsmentioning

confidence: 99%

Improved Crystallization Quality of FAPbBr₃ Single Crystals by a Seeded Solution Method

Liu

Zhang

Zhao

et al. 2022

ACS Appl. Mater. Interfaces

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Solution-grown hybrid perovskite, FAPbBr3, has attracted great attentions recently due to its inspiring optoelectronic properties and low-cost preparation method. However, challenges of solution growth for FAPbBr3 bulk crystals remain yet, such as uncontrollable crystalline morphologies, irregular shapes, and limited crystal sizes, which are attributed to the dense crystallization nucleus. In this work, we investigate the effects of growth conditions and seed behaviors on the crystallization quality and the yield of FAPbBr3 single crystals. First, the spontaneous nucleation is tailored by optimizing the precursor concentration and heating rate. Furthermore, the seeded crystals are introduced to solve the issues related to the morphology and the yield of single crystals. Based on the above-mentioned investigations, an optimized growth method, a seeded solution method, under a heating rate of 0.1 °C/h is proposed, and centimeter-scale FAPbBr3 single crystals with a very narrow FWHM of high-resolution X-ray diffraction rocking curves and a high yield of ∼100% of single crystals are obtained. The resulting FAPbBr3 single crystal exhibits a bulk resistivity of 3.42 × 109 Ω·cm and a superior I ON/I OFF ratio over 104 under 405 nm light at a bias of 10 V. Finally, the pulse height spectra with an energy resolution of ∼21.4% are also achieved based on an AZO/FAPbBr3/Au detector, illuminated using an uncollimated 241Am@5.49 MeV α-particle source at room temperature. This modified seeded solution method shows great potential in preparing high-quality and high-yield perovskite single crystals.

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An ion migration induced self-powered photoelectrical detector based on FAPbBr₃ single crystals

Abstract: Self-powered photoelectric devices as a new type of sensor without an external power source have a great potential advantage in the next generation of portable and wearable personal devices. The...

Cited by 6 publications

References 35 publications

Single nucleation of Cl-doped FAPbBr₃ with inhibited ion migration for ambipolar radiation detection

Single nucleation of Cl-doped FAPbBr₃ with inhibited ion migration for ambipolar radiation detection

Self‐Driven Narrow‐Band Photodetector based on FAPbBr_2.5I_0.5 Single Crystal for Yellow Light Intensity Meter Application

Improved Crystallization Quality of FAPbBr₃ Single Crystals by a Seeded Solution Method

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An ion migration induced self-powered photoelectrical detector based on FAPbBr3 single crystals

Abstract: Self-powered photoelectric devices as a new type of sensor without an external power source have a great potential advantage in the next generation of portable and wearable personal devices. The...

Cited by 6 publications

References 35 publications

Single nucleation of Cl-doped FAPbBr3 with inhibited ion migration for ambipolar radiation detection

Single nucleation of Cl-doped FAPbBr3 with inhibited ion migration for ambipolar radiation detection

Self‐Driven Narrow‐Band Photodetector based on FAPbBr2.5I0.5 Single Crystal for Yellow Light Intensity Meter Application

Improved Crystallization Quality of FAPbBr3 Single Crystals by a Seeded Solution Method

Contact Info

Product

Resources

About

An ion migration induced self-powered photoelectrical detector based on FAPbBr₃ single crystals

Single nucleation of Cl-doped FAPbBr₃ with inhibited ion migration for ambipolar radiation detection

Single nucleation of Cl-doped FAPbBr₃ with inhibited ion migration for ambipolar radiation detection

Self‐Driven Narrow‐Band Photodetector based on FAPbBr_2.5I_0.5 Single Crystal for Yellow Light Intensity Meter Application

Improved Crystallization Quality of FAPbBr₃ Single Crystals by a Seeded Solution Method