Tailoring light emission properties and optoelectronic and optothermal responses from rare earth-doped bismuth oxide for multifunctional light shielding, temperature sensing, and photodetection

Fan, Liumin; Yang, Li; Lin, Xiaohui; Peng, Junhao; Ju, Guifang; Zhang, Shaoan; Chen, Li; He, Fupo; Hu, Yihua

doi:10.1039/c7ra08490k

Cited by 17 publications

(2 citation statements)

References 37 publications

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“…LED is used in various types of lighting places because of low operating voltage, microstructural, low cost, low radiation, and other features. The application technology of LED light sources gained widespread popularity [7,8]. A lot of progress has been made in improving the power of LED.…”

Section: Introductionmentioning

confidence: 99%

Investigation on characteristic of LED power density via tapered fiber

Jing

Zhang

et al. 2022

Mater. Res. Express

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In this paper, a tapered fiber for improving the power density of the Light Emitting Diode (LED) was designed. Numerical simulation showed that the tapered fiber makes the LED diverging light sources converge on the microscopic area, which makes the LED available for biomedical photonic imaging in the microenvironment. Based on the Monte Carlo Ray Tracing Method, we obtained the law of spot illumination and divergence angle when the light passes through the different parameters tapered fiber. In addition, the tapered fiber was designed as a spiral shape with steadily changing slope, and the effect of the

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Section: Introductionmentioning

confidence: 99%

Investigation on characteristic of LED power density via tapered fiber

Jing

Zhang

et al. 2022

Mater. Res. Express

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“…Recently, self‐powered sensor has been intensively investigated for detecting light, pressure, humidity, and temperature to meet the needs of sustainable and intelligent development of human society . In particular, multifunctional self‐powered sensors, which could be utilized for simultaneously sensing various energy variation, have received widespread attentions due to their practicality, light weight, and high integration . However, to respond to various stimulation, traditional multifunctional self‐powered sensors are often equipped with more than one pair of electrodes and have large volume.…”

mentioning

confidence: 99%

Photovoltaic–Pyroelectric–Piezoelectric Coupled Effect Induced Electricity for Self‐Powered Coupled Sensing

Wang

Yang

2019

Adv Elect Materials

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sustainable and intelligent development of human society. [1][2][3][4][5][6][7] In particular, multifunctional self-powered sensors, which could be utilized for simultaneously sensing various energy variation, have received widespread attentions due to their practicality, light weight, and high integration. [8][9][10][11][12][13][14][15] However, to respond to various stimulation, traditional multifunctional self-powered sensors are often equipped with more than one pair of electrodes and have large volume. Currently, ferroelectric material has attracted a great deal of attention for energy scavenging and sensing because of its unique photovoltaic, pyroelectric, and piezoelectric effects. [16][17][18] As so far, a variety of self-powered sensors based on ferroelectric materials have been successfully fabricated and characterized by using LiNbO 3 , Pb(Zr,Ti)O 3 , BiFeO 3 , and BaTiO 3 (BTO), as sensitive materials. [19][20][21][22] Especially, the BTO materials have been widely utilized for light and pressure sensing applications due to their outstanding characteristics of innocuity, stability, and high piezoelecric constant. [23,24] Due to the coexistence of photo voltaic, pyroelectric, and piezoelectric effects, it is allowed for the ferroelectric materials to sense light, temperature, and pressure simultaneously. However, there is no report about the achievement of multifunctional sensing in a single unit by using the ferroelectric materials.In this work, we report a reliable and convenient method to achieve photovoltaic-pyroelectric-piezoelectric coupled effect induced electricity for self-powered coupled sensing using ferroelectric BTO material in a one structure-based device. The fabricated sensor can be utilized to individually or simultaneously detect light intensity, temperature variation, and vibration frequency. When individually monitoring for light, temperature, and vibration, the sensitivities of the sensor could reach up to 0.17 nA (mW cm −2 ) −1 , 4.80 nA K −1 under cooling condition (1.75 nA K −1 under heating condition), 21.02 nA Hz −1 at a lower vibration frequency (≤17 Hz), and −14.07 nA Hz −1 at a larger vibration frequency (>17 Hz), respectively. Moreover, the performances of the self-powered sensor for simultaneously sensing light intensity, temperature variation, and vibration frequency were also investigated. It was demonstrated that the sensitivities of the device, especially the temperature sensitivity and vibration sensitivity, could be modulated by the photovoltaic-pyroelectric-piezoelectric coupled effect. This study may provide approaches to improve the integration level of the multifunctional sensor to meet the needs of business Multifunctional sensors have attracted great interests as potential candidates for application of human health and ambient circumstance monitoring devices. Recent investigations are focused on novel materials or device structure to achieve simultaneously detecting various stimulations. Here, the photovoltaic-pyroelectric-piezoelectric coupled effect induced ...

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