๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Analysis of post deposition processing for CdTe/CdS thin film solar cells

โœ Scribed by Brian E. McCandless; Robert W. Birkmire

Publisher
Elsevier Science
Year
1991
Weight
457 KB
Volume
31
Category
Article
ISSN
0379-6787

No coin nor oath required. For personal study only.

โœฆ Synopsis

A post-deposition process for optimizing the efficiency of thin film CdTe/CdS solar cells deposited by physical vapor deposition has been developed and the effects of the individual process steps on the materials and device properties have been analyzed. A 400 ยฐC heat treatment with CdCl2 restructures the CdTe resulting in enhanced grain size and crystallographic reorientation. Structural and optical measurements indicate interdiffusion of sulfur and tellurium during the heat treatment resulting in formation of a CdS:,Te~_., layer with a narrower band gap than CdTe. Biracial current-voltage and quantum efficiency analysis of the CdTe devices at various stages of the optimization process shows the evolution of the device from a p-i-n structure to a heterojunction. A chemical treatment improves the open circuit voltage (Voc) and Cu/Au contact to the CdTe. The optimization process can be applied to cells using CdTe and CdS deposited by different methods.

๐Ÿ“œ SIMILAR VOLUMES

Optimization of vapor post-deposition pr
Optimization of vapor post-deposition processing for evaporated CdS/CdTe solar cells
โœ B. E. McCandless; I. Youm; R. W. Birkmire ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 522 KB

The eects of thermal annealing in conjunction with CdCl 2 vapor heat treatment on the properties of CdTe/CdS thin ยฎlms and devices deposited by physical vapor deposition are reported. Results are compared for three treatment variations: hightemperature anneal only, high-temperature anneal followed b

The analysis of CdS thin film at the pro
The analysis of CdS thin film at the processes of manufacturing CdS/CdTe solar cells
โœ S. Chun; Y. Jung; J. Kim; D. Kim ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 831 KB

In sequence, the deposited CdS thin film had undergone physical and optical changes by the processes of manufacturing CdS/CdTe solar cells. CdS thin film was manufactured by the Chemical Bath Deposition (CBD) method. The aqueous solution was based on ammonia solution. The temperature of bath system

Preparation and characterisation of elec
Preparation and characterisation of electrodeposited n-CdS/p-CdTe thin film solar cells
โœ S.K. Das; G.C. Morris ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 539 KB

Cadmium sulphide and cadmium telluride films have been electrodeposited for n-CdS/p-CdTe solar cells. Cell efficiency varied considerably from 9.5% to 11.5% for each deposition set. The reverse saturation currents of 9.5% and 11.5% cells at 298 K were 25 and 6.7 nA cm -2, respectively. The cells wit