Related Experiment Video
Updated: Aug 22, 2025

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
Published on: November 5, 2014
RETRACTED: Numerical Study of a Solar Cell to Achieve the Highest InGaN Power Conversion Efficiency for the Whole
Rubén Martínez-Revuelta1, Horacio I Solís-Cisneros1, Raúl Trejo-Hernández2
1Optomechatronics Group, Tecnológico Nacional de México Campus Tuxtla Gutiérrez, Carretera Panamericana Km 1080, Tuxtla Gutiérrez 29050, Mexico.
Abstract:
A solar cell structure with a graded bandgap absorber layer based on InGaN has been proposed to overcome early predicted efficiency. Technological issues such as carrier concentration in the p- and n-type are based on the data available in the literature. The influence of carrier concentration-dependent mobility on the absorber layer has been studied, obtaining considerable improvements in efficiency and photocurrent density. Efficiency over the tandem solar cell theoretical limit has been reached. A current density of 52.95 mA/cm2, with an efficiency of over 85%, is determined for a PiN structure with an InGaN step-graded bandgap absorption layer and 65.44% of power conversion efficiency for the same structure considering piezoelectric polarization of fully-strained layers and interfaces with electron and hole surface recombination velocities of 10-3 cm/s.
Related Concept Videos
P-N junction
Maximum Power Transfer
By substituting the entire circuit with...
Calculation of Electric Flux

