ABSTRACT Lightweight photovoltaic applications are essential for diversifying the solar energy supply. This opens up vast new scenarios for solar modules and significantly boosts the capacity of renewable energy. To ensure high efficiency and stability of the solar modules, several challenges need to be overcome. Degradation due to elevated temperature and/or humidity is a critical concern for silicon heterojunction (SHJ) solar modules. Here, we investigated the stability and degradation mechanism of encapsulated …

Abstract Triple‐junction solar cells theoretically outperform their double-junction and single‐junction counterparts in power conversion efficiency, yet practical perovskite–perovskite–silicon devices have fallen short of both theoretical limits and commercial targets. To address surface defects in the top perovskite junction, we introduce a piperazine-1,4-diium chloride treatment, which replaces less stable lithium fluoride. For interfacing the top and middle perovskite junctions, we optimize the size of gold nan…

ABSTRACT This work investigates the influence of the metallization of low‐temperature Cu paste and AgCu paste on the performance of SHJ solar cells through a comprehensive study of two techniques—screen printing (SP) and dispensing. The research successfully applied Cu and AgCu pastes as metal contacts on SHJ solar cells, yielding promising results. Notably, cells with AgCu paste SP on the front side and Ag paste SP on the rear side achieved a 0.13% efficiency gain over reference Ag SP bifacial cells. Moreover, ce…

A multiscale electro‐optical device model is employed to investigate free energy and other losses in a silicon heterojunction (SHJ) solar cell. A finite element method‐based device model is coupled with free energy loss analysis (FELA) to calculate detailed bias voltage‐dependent losses in terms of and . Such an approach provides insight into identifying possible pathways for synergetic optimization and redesigning a solar cell device in both laboratory and mass production settings. The SHJ solar cell investigated…

The origin of sputter damage during transparent conductive oxide deposition is ion bombardment rather than plasma radiation. Ion bombardment increased recombination, whereas plasma radiation reduced recombination.