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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: Apr 6, 2026

Flash Infrared Annealing for Perovskite Solar Cell Processing

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

Semitransparent Fully Air Processed Perovskite Solar Cells.

Lingling Bu¹, Zonghao Liu¹, Meng Zhang¹

¹Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.

ACS Applied Materials & Interfaces

|July 22, 2015

Summary

Semitransparent perovskite solar cells utilize a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrode for power-generating windows. This facile fabrication method yields efficient semitransparent solar cells.

Keywords:

PEDOT:PSS counter electrode large-area proviskite solar cell perovskite solar cell plastic wrap semitransparent transfer lamination technique

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

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Published on: February 27, 2017

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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

Area of Science:

Materials Science
Renewable Energy
Device Physics

Background:

Semitransparent solar cells are promising for integration into buildings as power-generating windows.
Perovskite solar cells offer high power conversion efficiencies but require suitable transparent electrodes.
Conducting polymers like PEDOT:PSS are explored as alternatives to traditional transparent conductive oxides.

Purpose of the Study:

To develop semitransparent perovskite solar cells using a novel transparent counter electrode.
To investigate the efficacy of a transfer lamination technique for fabricating these devices.
To assess the power conversion efficiency and scalability of the developed solar cells.

Main Methods:

Fabrication of semitransparent perovskite solar cells employing a PEDOT:PSS film as the transparent counter electrode.
Utilizing a transfer lamination technique with plastic wrap to deposit the PEDOT:PSS film, avoiding direct contact with the perovskite layer.
Characterization of device performance, including power conversion efficiency at different active areas.

Main Results:

Achieved a power conversion efficiency of 10.1% for semitransparent perovskite solar cells with an active area of approximately 0.06 cm².
Demonstrated a power conversion efficiency of 2.9% for devices with an active area of 1 cm².
The transfer lamination method successfully protected the perovskite film during electrode fabrication.

Conclusions:

The developed semitransparent perovskite solar cells with a PEDOT:PSS electrode are a viable option for power-generating window applications.
The transfer lamination technique offers a facile and protective method for fabricating these devices.
The results highlight the potential for scalable production of efficient semitransparent perovskite solar cells.