The temperature variation of test specimen due to white bias light irradiation during the spectral response measurement of solar cells and its effect on the spectral response measurement result
- 주제(키워드) solar cell
- 발행기관 고려대학교 대학원
- 지도교수 김동환
- 발행년도 2015
- 학위수여년월 2015. 8
- 학위구분 석사
- 학과 대학원 신소재공학과
- 원문페이지 108 p
- 실제URI http://www.dcollection.net/handler/korea/000000060446
- 본문언어 영어
- 제출원본 000045841286
초록/요약
A lot of studies concerning the solar cells have achieved in recent days. Compare to this, proper PV performance evaluation mothods for solar cells have merely studied and not understood well. To accurate PV performance evaluation, it is important to understand the performance evaluation mothods. In this study, The temperature variation of solar cells due to AM1.5 G approximated white bias light irradiation during the spectral response measurement and its effect on the spectral response measurement result have been investigated for various kinds of solar cells such as c-Si, CIGS, DSSC etc. The spectral response measurement system used in the investigation employed the well-known “temperature controlled sample stage” method and “forced air cooling” method to control the temperature of the solar cell samples during the measurement. Hence, the availability of the sample temperature control methods was also tested. From the investigation, it was found that if none of temperature control means for the solar cells are used during the spectral response measurement, the temperature of the solar cells (which is located under the AM1.5 G approximated white light bias for the measurement) can be increased abruptly within a few minute. Moreover, it was also found that even if the well-known “temperature controlled sample stage” concepts (which usually use a water circulation system or a peltier-thermostat) are used to control the cell temperature, actual temperature of the solar cells can be increased significantly during the measurement. The variation of the cell temperature during the spectral response measurement was observed for various types of solar cells such as c-Si, CIGS, and DSSC and is found to be an error source of the spectral response measurement result, especially for the case of the solar cells having a relatively large temperature coefficient such as DSSC. Finally, a method to control the sample temperature during the spectral response measurement is introduced.
more목차
Chapter 1. Introduction 1
Chapter 2. Theoretical Background 2
2.1 Solar cells 2
2.1.1 History of solar cells 2
2.1.2 Solar resource 4
2.1.3 Operating principle of solar cells 7
2.1.4 Solar cell parameters 11
2.1.5 Loss mechanism of solar cells 16
2.2 Solar cells structure 18
2.2.1 Crystalline silicon solar cell 18
2.2.2 CIGS thin film solar cell 23
2.2.3 Dye-sensitized solar cell 27
2.3 Performance evaluation for solar cells 30
2.3.1 General procedure of performance evaluation for solar cell 34
2.3.2 Reference solar cell 36
2.3.3 Considerations of performance evaluation 39
2.3.4 Correction of performance evaluation results 42
2.4 Spectral response 46
2.4.1 Spectral response measurement 46
2.4.2 Considerations of spectral response measurement 49
2.4.3 Spectral response and quantum efficiency 50
2.5 Uncertainty analysis for spectral response measurement 52
Chapter 3. The temperature variation of test specimen due to bias light irradiation during the spectral response measurement and it effect on the measurement results 54
3.1 Introduction 54
3.2 Experimental details 56
3.3 Results and discussion 69
3.4 Conclusions 88
References 90
