Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Controlling Parasitic Nucleation in Methylamine-Treated Perovskite Films via Artificial Seeding and Phase-Field Simulations.

Small science·2026

Same author

Domain-adapted discovery of PET depolymerisation routes using in-house curated scientific literature.

Chemical communications (Cambridge, England)·2026

Same author

Resolving ionic spectra of lead-halide perovskites to the nanometer.

Nanoscale·2026

Same author

Facile Critical Evaluation of Extensive Lithium-Oxygen Battery Literature Using In-House Data and the Structured Query Learning-Retrieval-Augmented Generation Method.

ACS applied materials & interfaces·2026

Same author

Polysaccharide Hydrogels Doped with MXenes for Possible Biomedical Applications.

Molecules (Basel, Switzerland)·2026

Same author

Catalysts-Redox Mediators-Interfaces Synergies in Aprotic Lithium Oxygen Batteries: Pathways to Stability and Efficiency.

Small (Weinheim an der Bergstrasse, Germany)·2026

Search research articles

Related Experiment Video

Updated: Jun 13, 2025

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

MXene-Embedded PEDOT:PSS Hole-Transport Material for Lead-Free Perovskite Solar Cells.

JinKiong Ling^1,1, Daniele T Cuzzupè¹, Muhammad Faraz Ud Din^2,3

¹Department of Physics and Zunkunftskolleg, University of Konstanz, 78457 Konstanz, Germany.

ACS Applied Energy Materials

|September 13, 2024

Summary

Adding MXene to the hole transport layer (HTL) in tin-based perovskite solar cells (PSCs) improves energy alignment and film quality. This enhances power conversion efficiency (PCE) and device stability.

More Related Videos

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

Related Experiment Videos

Last Updated: Jun 13, 2025

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

Area of Science:

Materials Science
Renewable Energy
Nanotechnology

Background:

Optimizing energy levels between charge-transport layers and perovskites is key for high-performance tin-based perovskite solar cells (PSCs).
The poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) hole transport layer (HTL) is commonly used but requires further enhancement for efficient charge extraction.

Purpose of the Study:

To investigate the impact of incorporating Ti 3 C 2 T x MXene into the PEDOT:PSS HTL on the photovoltaic properties of PSCs.
To determine the optimal concentration of MXene for improved device performance and stability.

Main Methods:

MXene was embedded into the PEDOT:PSS HTL at varying concentrations.
Perovskite film formation, contact potential difference, and work function were analyzed using photoelectronic measurements.
Photovoltaic performance (power conversion efficiency - PCE) and long-term stability of the fabricated PSCs were evaluated.

Main Results:

Embedding MXene in PEDOT:PSS resulted in improved perovskite film quality, with reduced pinholes and more uniform contact potential.
Photoelectronic measurements showed an increased work function of the MXene-doped HTL, leading to better energy alignment with the perovskite layer.
PSCs with MXene-doped HTL achieved a PCE of 8.35%, a significant improvement over the 7.35% PCE of the pristine device.
The devices maintained approximately 90% of their initial PCE after 450 hours of storage in a nitrogen atmosphere.

Conclusions:

Ti 3 C 2 T x MXene incorporation into PEDOT:PSS HTL is an effective strategy to enhance the photovoltaic performance and stability of tin-based PSCs.
The improved performance is attributed to better energy alignment and enhanced perovskite film morphology.
MXene-doped PEDOT:PSS presents a promising approach for developing efficient and stable perovskite solar cells.