Pyroelectric photovoltaic spatial solitons in unbiased photorefractive crystals

Jiang, Qichang; Su, Yanli; Xuan-mang, JI

doi:10.1016/j.physleta.2012.08.043

Cited by 12 publications

(8 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are theoretical reports where the pyroelectric effect is found to support the photovoltaic performance of the material . Recently, the possibility of tuning piezoelectric, pyroelectric, and dielectric properties by illumination has been demonstrated .…”

Section: Future Prospectsmentioning

confidence: 99%

Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion

et al. 2019

View full text Add to dashboard Cite

An insight into the analogies, state-of-the-art technologies, concepts, and prospects under the umbrella of perovskite materials (both inorganicorganic hybrid halide perovskites and ferroelectric perovskites) for future multifunctional energy conversion and storage devices is provided. Often, these are considered entirely different branches of research; however, considering them simultaneously and holistically can provide several new opportunities. Recent advancements have highlighted the potential of hybrid perovskites for high-efficiency solar cells. The intrinsic polar properties of these materials, including the potential for ferroelectricity, provide additional possibilities for simultaneously exploiting several energy conversion mechanisms such as the piezoelectric, pyroelectric, and thermoelectric effect and electrical energy storage. The presence of these phenomena can support the performance of perovskite solar cells. The energy conversion using these effects (piezo-, pyro-, and thermoelectric effect) can also be enhanced by a change in the light intensity. Thus, there lies a range of possibilities for tuning the structural, electronic, optical, and magnetic properties of perovskites to simultaneously harvest energy using more than one mechanism to realize an improved efficiency. This requires a basic understanding of concepts, mechanisms, corresponding material properties, and the underlying physics involved with these effects. His current research focuses on developing functional inorganic−organic hybrid materials and energy conversion devices including perovskite solar cells.are found to have lower t-values (0.75 < t < 1.0). t-values help in governing and tuning the presence of ferroelectricity in perovskites [11] and are responsible for the transition temperatures in ferroelectrics. [57] In the case of hybrid inorganic-organic perovskites, the A-site and/or X-site ions are replaced by molecular building blocks; hence, the tolerance

show abstract

Section: Future Prospectsmentioning

confidence: 99%

Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion

et al. 2019

View full text Add to dashboard Cite

show abstract

“…It is known that photorefractive crystals support steady-state solitons in different settings, such as: (a). biased nonphotovoltaic photorefractive crystals (screening solitons) [2][3][4][5][6]; (b). unbiased photovoltaic photorefractive crystals (photovoltaic solitons) [3][4][5][6][7][8][9]; (c).…”

Section: Introductionmentioning

confidence: 99%

Regular, Beating and Dilogarithmic Breathers in Biased Photorefractive Crystals

Betancur-Silvera,

Espinosa-Cerón,

Malomed

et al. 2024

Axioms

View full text Add to dashboard Cite

The propagation of light beams in photovoltaic pyroelectric photorefractive crystals is modelled by a specific generalization of the nonlinear Schrödinger equation (GNLSE). We use a variational approximation (VA) to predict the propagation of solitary-wave inputs in the crystals, finding that the VA equations involve a dilogarithm special function. The VA predicts that solitons and breathers exist, and the Vakhitov–Kolokolov criterion predicts that the solitons are stable solutions. Direct simulations of the underlying GNLSE corroborates the existence of such stable modes. The numerical solutions produce both regular breathers and ones featuring beats (long-period modulations of fast oscillations). In the latter case, the Fourier transform of amplitude oscillations reveals a nearly discrete spectrum characterizing the beats dynamics. Numerical solutions of another type demonstrate the spontaneous splitting of the input pulse in two or several secondary ones.

show abstract

“…One concept uses the pyroelectric effect (charge generation due to thermal fluctuations) to support the photovoltaic performance in several materials. [10][11][12] Recently, light illumination was also reported for tuning piezoelectric, pyroelectric, and dielectric properties. [13][14][15] Another concept relies on the improvement of pyroelectric and/or photovoltaic performance using the piezoelectric effect or thermal biasing.…”

Section: Introductionmentioning

confidence: 99%

Coalition of Thermo–Opto–Electric Effects in Ferroelectrics for Enhanced Cyclic Multienergy Conversion

et al. 2020

View full text Add to dashboard Cite

The concept of multisource energy harvesting (of light, kinetic, and thermal energy) using a single material has recently been proposed. Herein, the realization of this novel concept is discussed and insight into the electric field‐assisted modulation of photocurrent and pyroelectric current in a bandgap‐engineered ferroelectric KNBNNO ((K0.5Na0.5)NbO3‐2 mol% Ba(Ni0.5Nb0.5)O3−δ) is provided. Thereafter, direct current (DC) electrical modulation under the simultaneous inputs of light and thermal changes for photovoltaic and pyroelectric effects, respectively, is utilized to achieve several orders of increase in the output current density. This is attributed to a light‐assisted increase in the material's electrical conductivity and ferroelectric photovoltaic effect. The phenomena of electro–optic and thermo–electro–optic DC modulations are further used to propose two novel energy‐conversion cycles. The performance of both the proposed energy conversion cycles is compared with that of the Olsen cycle. The electro–optic and thermo–electro–optic cycles are found to harvest 7–10 times more energy than the Olsen cycle alone, respectively. Moreover, both energy‐conversion cycles offer broader flexibility and ease in operating conditions, thus paving a way toward the practical applications of multisource energy harvesting with a single material for enhanced energy‐conversion capability and device/system compactness.

show abstract

Pyroelectric photovoltaic spatial solitons in unbiased photorefractive crystals

Cited by 12 publications

References 13 publications

Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion

Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion

Regular, Beating and Dilogarithmic Breathers in Biased Photorefractive Crystals

Coalition of Thermo–Opto–Electric Effects in Ferroelectrics for Enhanced Cyclic Multienergy Conversion

Contact Info

Product

Resources

About