The impact of Pd on the light harvesting in hybrid organic-inorganic perovskite for solar cells

Navas, Javier; Sánchez‐Coronilla, Antonio; Gallardo, Juan Jesús; Santos, Desireé De Los; Martín, Elisa I.; Hernández, Norge Cruz; Alcántara, Rodrigo; Fernández‐Lorenzo, Concha; Martín‐Calleja, Joaquin

doi:10.1016/j.nanoen.2017.02.035

Cited by 32 publications

(33 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bearing in mind that around the fundamental gap of MAPI, only I and Pb contribute to the density of states 51 , our work explores the effect of partial replacing of Pb with a transition metal. This type of substitution has been attempted recently 52 – 54 , but only M. D. Sampson et al . 53 mention the interest of an IGB, and in any case none of these works seems to result in a partially filled IGB.…”

Section: Introductionmentioning

confidence: 99%

Influence of chromium hyperdoping on the electronic structure of CH3NH3PbI3 perovskite: a first-principles insight

García

Palacios

Menéndez-Proupín

et al. 2018

Sci Rep

View full text Add to dashboard Cite

Organic-inorganic hybrid halide perovskites compounds are emerging as new materials with great potential for efficient solar cells. This paper explores the possibility of increasing their photovoltaic efficiency through sub-bandgap absorption by way of the in gap band (IGB) concept. Thus, we assess the formation of an in gap band as well as its effect on the absorption features of Organic-inorganic hybrid halide perovskites CH3NH3PbI3 (MAPI). For this task, we use density functional theory (DFT) as well as many-body perturbation methods along to spin-orbit coupling (SOC) to study structural, energetic and electronic properties of partially Cr-substituted MAPI perovskites (CH3NH3Pb1−xCrxI3). Our results reveal that Cr replacement does not lead to an important cell distortion, while the energetic of the substitution process evidences the possibility of obtaining Cr-substituted perovskite. The analysis of the electronic structure shows that Cr 3d-orbitals induce new electronic states in the host semiconductor bandgap, which fulfill the requirements to be considered as an IGB. Precise many-body perturbation methods in G0W0 approach provided an accurate description on the electronic structures as well as the position of the IGB. In short, Pb replacement by Cr could be useful for improved absorption features through new sub-bandgap transitions across the in gap band.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of chromium hyperdoping on the electronic structure of CH3NH3PbI3 perovskite: a first-principles insight

García

Palacios

Menéndez-Proupín

et al. 2018

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The relatively strong intensity of the peaks located at 14.0° , 28.4° , 31.8° and 43.2° were observed corresponding to the planes of (110) , (220) , (310) and (330) [18,19]. 1.57 eV, which is pictured according to the expression [20],…”

Section: Resultsmentioning

confidence: 96%

Copper iodide as inorganic hole conductor for perovskite solar cells with different thickness of mesoporous layer and hole transport layer

Huangfu

Zhu

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

“…Because MAPbI 3 is more delicate than the typical inorganic materials investigated with CL microscopy, the only previous CL of MAPbI 3 materials has been limited to ensemble spectral measurements of nanowires 39 and nanoparticles. 40 To mitigate the effect of sample damage by the electron beam, we employ far lower accelerating voltages (between 1.5 and 5.0 kV) than are used in typical scanning electron microscopy (SEM). By collecting dual SEM and CL images, we correlate the emitted light to the morphology of the film, and by varying the accelerating voltage we also obtain depth-dependent information.…”

Section: * S Supporting Informationmentioning

confidence: 99%

Heterogeneous Charge Carrier Dynamics in Organic–Inorganic Hybrid Materials: Nanoscale Lateral and Depth-Dependent Variation of Recombination Rates in Methylammonium Lead Halide Perovskite Thin Films

Bischak¹,

Sanehira

Precht³

et al. 2015

Nano Lett.

137

153

View full text Add to dashboard Cite

We reveal substantial luminescence yield heterogeneity among individual subdiffraction grains of high-performing methylammonium lead halide perovskite films by using highresolution cathodoluminescence microscopy. Using considerably lower accelerating voltages than is conventional in scanning electron microscopy, we image the electron beam-induced luminescence of the films and statistically characterize the depthdependent role of defects that promote nonradiative recombination losses. The highest variability in the luminescence intensity is observed at the exposed grain surfaces, which we attribute to surface defects. By probing deeper into the film, it appears that bulk defects are more homogeneously distributed. By identifying the origin and variability of a surface-specific loss mechanism that deleteriously impacts device efficiency, we suggest that producing films homogeneously composed of the highest-luminescence grains found in this study could result in a dramatic improvement of overall device efficiency. We also show that although cathodoluminescence microscopy is generally used only to image inorganic materials it can be a powerful tool to investigate radiative and nonradiative charge carrier recombination on the nanoscale in organic−inorganic hybrid materials.

show abstract

The impact of Pd on the light harvesting in hybrid organic-inorganic perovskite for solar cells

Cited by 32 publications

References 49 publications

Influence of chromium hyperdoping on the electronic structure of CH3NH3PbI3 perovskite: a first-principles insight

Influence of chromium hyperdoping on the electronic structure of CH3NH3PbI3 perovskite: a first-principles insight

Copper iodide as inorganic hole conductor for perovskite solar cells with different thickness of mesoporous layer and hole transport layer

Heterogeneous Charge Carrier Dynamics in Organic–Inorganic Hybrid Materials: Nanoscale Lateral and Depth-Dependent Variation of Recombination Rates in Methylammonium Lead Halide Perovskite Thin Films

Contact Info

Product

Resources

About