Physical Parameters of Phosphor Layers and their Effects on the Device Properties of Beta‐radioluminescent Nuclear Batteries

Tang, Xiaobin; Xu, Zhiheng; Liu, Yunpeng; Liu, Min; Wang, Hao; Chen, Da

doi:10.1002/ente.201500268

Cited by 19 publications

(11 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, an efficient and stable fluorescent material consists of a host, a sensitizer, and an activator. Cubic Y 2 O 3 as a host is appropriate for down‐conversion and up‐conversion applications due to its rather low phonon energy, high chemical and thermal durability, and high efficiency . In addition, Yb 3+ , which has a high and broad absorption band, is considered to be an excellent sensitizer for the activators .…”

Section: Methodsmentioning

confidence: 99%

Multifunctional Rare‐Earth‐Doped Tin Oxide Compact Layers for Improving Performances of Photovoltaic Devices

Xiao

Han

Yue

et al. 2016

Adv Materials Inter

View full text Add to dashboard Cite

spectrum, resulting in a serious decaying of the photovoltaic property. [25][26][27] To solve this problem and take advantages of SnO 2 compact layer and rare earth, here we first developed a facile but effective method for the fabrication of multifunctional SnO 2 :(Yb 3+ , RE 3+ ), RE = Eu, Dy, Er, etc.) compact layer by doping Yb 3+ and RE 3+ into SnO 2 compact layer and application in photovoltaic devices. As an universal example, we focused on the preparation and characterization of SnO 2 :(Yb 3+ , Eu 3+ ) compact layer in DSSC. Scheme 1 shows the mechanism diagram of the multifunctional compact layer. SnO 2 :(Yb 3+ , Eu 3+ ) can convert UV light into visible light to broaden light absorption range of the device, accompanying with a function of protection the dye against degradation. SnO 2 nanoparticles can prevent the loss of electrons by back reactions at the substrate/electrolyte interface. As expected, photovoltaic device with SnO 2 :(Yb 3+ , Eu 3+ ) compact layer achieved an enhanced short-circuit current density and showed an excellent photoelectrical conversion efficiency of 9.19%, superior to that of the device without compact layer (7.14%). Moreover, the excellent long-term stability of the device with SnO 2 :(Yb 3+ , Eu 3+ ) compact layer was investigated.In order to prepare the ultrathin SnO 2 compact layer with complete coverage on FTO substrate, the optimum concentration of SnCl 4 isopropyl alcohol solution for the spin-coating was investigated in advance ( Figure S1, Supporting Information), and the optimized concentration is 0.04 m. The diameter size of the monolayer SnO 2 nanoparticles is about 12 nm (Figure 1b). Y 2 O 3 :(Yb 3+ , Eu 3+ ) fluorescent material was also spin-coated on FTO substrate, however it is partial coverage on FTO substrate with irregular large particles ( Figure 1c). After doping Y 2 O 3 :(Yb 3+ , Eu 3+ ) in SnO 2 compact layer, the irregular large particles were disappeared and dispersed in SnO 2 compact layer, which shows like a winding river (Figure 1d, and Figure S2d, Supporting Information). The fluorescent material with a big coverage would result in a remarkable increase of the sheet resistance; this is detrimental to the photovoltaic properties of the device. Therefore, the host material of Y 2 O 3 was replaced by SnO 2 (Figure 1e-g). The detailed experimental processes and parameters were exhibited in the Supporting Information and Table S1 (Supporting Information). The optimum concentrations of the sensitizer Yb 3+ and activator RE 3+ are 8.00 × 10 −3 and 0.40 × 10 −3 m, respectively, which shows an appropriate size of SnO 2 :(Yb 3+ , Eu 3+ ) nanoparticles (Figure 1f, and Figure S2f, Supporting Information), and the thickness of this SnO 2 :(Yb 3+ , Eu 3+ ) compact single layer is about 12.0-20.0 nm (Figure 1h). The corresponding low-magnification field-emission scanning electron microscopy (FESEM) images were shown in Figure S2a-g (Supporting Information). Moreover, SnO 2 :(Yb 3+ , Dy 3+ ) ( Figure S2h, Supporting Information) and SnO 2 :(Yb 3+ , Er 3+ ) ( Figu...

show abstract

Section: Methodsmentioning

confidence: 99%

Multifunctional Rare‐Earth‐Doped Tin Oxide Compact Layers for Improving Performances of Photovoltaic Devices

Xiao

Han

Yue

et al. 2016

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…In the past decade, investigations on the design of the device structure , [4][5][6] application of various scintillators (organic or inorganic ones), 7 effect and optimization of physical parameters, [8][9][10] and coupling between scintillators and PVDs have been carried out to improve the NB e ciency. 11 Despite the power output and e ciency of NBs have been improved signi cantly, the scintillators employed in these researches were mainly conventional transition or rare earth metal doped phosphors, 7,12,13 which typically possess short emission wavelength or low light yield (LY).…”

Section: Main Textmentioning

confidence: 99%

Mn2+ Induced Significant Improvement and Robust Stability of Radioluminescence in Cs3Cu2I5 for High Performance Nuclear Battery

Zeng

Chen

et al. 2020

Preprint

View full text Add to dashboard Cite

Fluorescent type nuclear battery (NB) consisting of scintillator and photovoltaic device (PVD) enables semipermanent power source for both small and large devices working under harsh circumstances without instant energy supply. In spite of the progress of device structure design, the development of scintillators with high light yield (LY) and longer emission wavelength catering to PVDs is far behind. Here, a novel Cs3Cu2I5: Mn scintillator, which exhibits an ultrahigh LY of ~ 67000 ph/MeV at an emission wavelength of 564 nm is presented, and this is the highest value at such a long wavelength based on low cost precursors. Besides, doping and intrinsic features endow Cs3Cu2I5: Mn with robust thermal stability and irradiation hardness that 71% or > 90% of the initial radioluminescence (RL) intensity can be maintained in an ultra-broad temperature range of 77 K-433 K or after a total irradiation dose of 38.7 Gy at 333 K, respectively. These superiorities allow the fabrication of an efficient and stable NB, which showed an output improvement of 337% respect to that without scintillator. Luminescence mechanisms including self-trapped exciton, energy transfer, and impact excitation are proposed for the dramatic RL improvement. It is expected that such a new and robust scintillator will open a window for the fields of NBs and radiography.

show abstract

“…All these EHPs are then separated by a built‐in electrical field. Finally, the battery delivers an output current after being connected to an external circuit …”

Section: Introductionmentioning

confidence: 99%

Use the Indirect Energy Conversion of the Phosphor Layer to Improve the Performance of Nuclear Batteries

et al. 2018

Self Cite

View full text Add to dashboard Cite

The GaAs X-ray nuclear battery without and with the phosphor layer was investigated under the irradiation of the X-ray tube. The output power was significantly improved by introducing ZnS : Cu or (Zn,Cd)S : Cu phosphor layer, but not by ZnS : Ag phosphor layer because of the degree of spectral matching between the phosphor layer and the GaAs device. To analyze the radioluminescence (RL) effects of the phosphor layers under X-ray excitation, we measured the RL spectra of the different phosphor layers. The RL spectra of the different phosphor layers revealed their fluorescence in the wavelength range of approximately 375-675 nm. Light at the exact wavelength can be used by the GaAs device to produce electricity. Considering irradiation damage of ZnS : Cu phosphor layer induced by X-rays, an additional experiment was carried out to examine irradiation damage of ZnS : Cu. The results indicate that irradiation effect on the RL performance of ZnS : Cu was not obvious.

show abstract

Physical Parameters of Phosphor Layers and their Effects on the Device Properties of Beta‐radioluminescent Nuclear Batteries

Cited by 19 publications

References 14 publications

Multifunctional Rare‐Earth‐Doped Tin Oxide Compact Layers for Improving Performances of Photovoltaic Devices

Multifunctional Rare‐Earth‐Doped Tin Oxide Compact Layers for Improving Performances of Photovoltaic Devices

Mn2+ Induced Significant Improvement and Robust Stability of Radioluminescence in Cs3Cu2I5 for High Performance Nuclear Battery

Use the Indirect Energy Conversion of the Phosphor Layer to Improve the Performance of Nuclear Batteries

Contact Info

Product

Resources

About