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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...

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Updated: May 28, 2025

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Published on: February 27, 2017

Enhancing Performance of NiO_x-Based Inverted Perovskite Solar Cells: Advances in Buried Interface Material

Yulin Wei^1,2, Chenyang Zhang², Han Wang³

¹The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China.

Small (Weinheim an Der Bergstrasse, Germany)

|February 13, 2025

Summary

This summary is machine-generated.

Enhancing the interface in inverted perovskite solar cells (PSCs) using NiO_x is key for better performance. This review covers materials and methods to improve NiO_x/perovskite interfaces for efficient and stable PSCs.

Keywords:

NiOx, buried interface defect passivation interface modification materials inverted perovskite solar cells

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Area of Science:

Materials Science
Renewable Energy

Background:

Inverted perovskite solar cells (PSCs) are a research focus due to advantages like low-temperature processing.
Nickel oxide (NiO_x) is a common hole transport layer in PSCs.
Challenges include defects, low conductivity, and band mismatch at the NiO_x/perovskite interface.

Purpose of the Study:

To review recent advancements in enhancing the NiO_x/perovskite interface.
To provide insights for developing more efficient and stable NiO_x-based PSCs.

Main Methods:

Systematic categorization of interface engineering materials: organic small molecules, self-assembled monolayers (SAMs), polymers, and salts.
Review of other strategies: low-dimensional materials, metal doping, and NiO_x deposition techniques.
Analysis of research from the past two years.

Main Results:

Identified various materials and strategies for improving the NiO_x/perovskite buried interface.
Highlighted the impact of these enhancements on PSC efficiency and stability.

Conclusions:

Interface engineering is critical for advancing NiO_x-based PSCs.
Future research should focus on overcoming remaining challenges and exploring new strategies.