Mr. Diego Esparza Profile

Diego Esparza

at Univ Autónoma de Zacatecas

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 1 October 2023 Poster + Paper

Synthesis and characterization of cesium europium chloride bromide lead-free Perovskite nanocrystals

Emmanuel Reyes, Humberto Emmanuel Sánchez-Godoy, Diego Esparza, Haggeo Desinera, Jaime Espino-Valencia, Anabel Herrera-Rodríguez, Tzarara López-Luke

Proceedings Volume 12659, 1265909 (2023) https://doi.org/10.1117/12.2678065

KEYWORDS: Europium, Nanocrystals, Perovskite, Cesium, Bromine, Lead, Photoluminescence, Light emitting diodes, Chlorine

Read Abstract +

Due to the high toxicity of lead, research on new lead-free perovskite semiconductor materials with suitable optical and electronic properties has been of great interest. For this reason, rare earth halide perovskites are a promising class of materials for this purpose. Here, cesium europium bromide chloride (CsEu(ClxBr1−x)3 ) perovskite nanocrystals (NCs) with Eu2+ in the B site were successfully synthesized by a hot colloidal injection method. Different proportions of the molar ratio Cs:Eu were proposed in order to enhance the optical properties to promote a deep blue emission. High resolution TEM (HRTEM) revealed that the resulting nanoparticles were spherical shaped with an average diameter of ~ 10 nm. The electronic absorption spectra show bands peaked around 380 nm. The photoluminescence (PL) spectra of NCs excited at 393 nm exhibit bands peaked at 453 nm, 590 nm, 615 nm, and 697 nm. These PL peaks coincide with the emission of Eu3+ and Eu2+, covering the entire emission spectrum. PL spectra shows that Eu2+ induces a slight broadening in the full width at half maximum (FWHM) when higher concentration ratio is used. Moreover, the PL results shows a change in the intensity of the 615 nm peak which implies that with further introduction of Eu2+ into the lattice, changes in radiative and non-radiative recombination are obtained. This work shows that the Europium based Lead-free perovskite nanocrystals are a promising candidate for optoelectronic devices.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years