2012 Fiscal Year Final Research Report
Study on efficiency enhancement of next-generation CIGS thin film solar cell by sequential evaporation
| Project/Area Number |
22560314
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Electronic materials/Electric materials
|
|---|
| Research Institution | Wakayama National College of Technology |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 薄膜太陽電池 / 三元化合物 / カルコパイライト型 / 連続成膜法 |
|---|
| Research Abstract |
In order to fabricate a next-generation CIGS thin film solar cell, the preparation conditions of the sequential evaporation method using ternary compounds were examined. CIGS thin film solar cell with a high Ga content by controlling the Ga2Se3 addition in the second step was fabricated and demonstrated open circuit voltage Voc=550mV, short circuit current density Isc=23.8mA/cm2, fill factor FF=0.55 and efficiency η=7.25%. This value was updated our previous performance. Moreover it was possible to improve the open circuit voltage by adding Na2Se and In2S3.
|
