Band Bending at CdTe Solar Cell Contacts: Correlating Electro‐Optical and X‐Ray Photoelectron Spectroscopy Analyses of Thin Film Solar Cells
نویسندگان
چکیده
Thin Film Solar Cells In article number 2300073, Darius Kuciauskas and co-workers present a device model for back contacts of CdTe solar cells, using combination electro-optical surface analysis measurements, developed by researchers at NREL First Solar.
منابع مشابه
Admittance spectroscopy of thin film solar cells
A short overview on thin film solar cells is given, and the complexity of their electronic structure is illustrated. Several physical mechanisms that give rise to a decay of the capacitance from a low-frequency value CLF to a high-frequency value CHF are discussed. A key of interpreting features in measured admittance spectroscopy (AS) spectra is a careful analysis of CLF and CHF and the temper...
متن کاملAnalysis of Cu Diffusion in ZnTe-Based Contacts for Thin-Film CdS/CdTe Solar Cells
Ohmic contacts to thin-film CdS/CdTe photovoltaic devices have been formed using a two-layer contact interface of undoped ZnTe (ZnTe) and Cu-doped ZnTe (ZnTe:Cu), followed by Ni or Ti as an outer metallization. Secondary ion mass spectroscopy (SIMS) is used to study Cu diffusion within this back-contact structure, and also, to monitor Cu diffusion from the contact into the CdTe. When Ni metalli...
متن کاملSULFUR DIFFUSION IN POLYCRYSTALLINE THIN-FILM CdTe SOLAR CELLS
X-ray diffraction and photoluminescence measurements have been used to characterize the diffusion of S into CdTe during post growth annealing of CdTe solar cells. For anneals at 410°C in the presence of CdCl2, evidence that both a CdTe1-xSx phase and nearly-pure CdTe are present near the back contact is observed. The ternary phase becomes more prominent and the S concentration increases with de...
متن کاملGrain boundaries in CdTe thin film solar cells: a review
The current state of knowledge on the impact of grain boundaries in CdTe solar cells is reviewed with emphasis being placed on working cell structures. The role of the chemical composition of grain boundaries as well as growth processes are discussed, along with characterisation techniques such as electron beam induced current and cathodoluminescence, which are capable of extracting information...
متن کاملMicrofabrication of Thin-Film Solar Cell Contacts Through Photolithography
Solar energy has emerged as an inexpensive and powerful means for clean energy production and draws much research interest. In particular, thinfilm solar cells often rely on the use of permanent shadow masks to pattern their front metal contacts for energy transport. However, these machined masks are not adjustable, and currently limit the scope of experimentation. In addition, the essence of f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solar RRL
سال: 2023
ISSN: ['2367-198X']
DOI: https://doi.org/10.1002/solr.202370104