KEYWORDS: Solar cells, Photovoltaics, Solar energy, Silicon, Perovskite, Manufacturing, Sustainability, Dye sensitized solar cells, Design, Energy efficiency
This report provides a snapshot of emerging photovoltaic (PV) technologies. It consists of concise contributions from experts in a wide range of fields including silicon, thin film, III-V, perovskite, organic, and dye-sensitized PVs. Strategies for exceeding the detailed balance limit and for light managing are presented, followed by a section detailing key applications and commercialization pathways. A section on sustainability then discusses the need for minimization of the environmental footprint in PV manufacturing and recycling. The report concludes with a perspective based on broad survey questions presented to the contributing authors regarding the needs and future evolution of PV.
In this contribution, we use spectrally resolved and quantitative photoluminescence measurements to parse voltage losses in CdSeTe films and finished devices. We show that sub-bandgap features, in part due to arsenic doping, are responsible for a significant decrease in the thermodynamic voltage limit Voc,ideal. Nevertheless, thanks to excellent material quality and interface passivation, the internal voltage iVoc (i.e., quasi-Fermi-level splitting with QFLS=q×iVoc) of finished devices approaches 1000 mV, in agreement with the high minority-carrier lifetimes measured. The selectivity of the device, and in particular of the back hole contact, is thus the main limitation in these devices.
We investigated pulsed laser deposition (PLD) of ZnO films on silicon and sapphire substrates. Photoluminescence (PL), electrical properties and crystal structure of films were investigated. Stimulated emission in region 400 nm was observed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.