KR20130096325A - 태양전지와 그 제조 방법, 및 태양전지 모듈 - Google Patents
태양전지와 그 제조 방법, 및 태양전지 모듈 Download PDFInfo
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- KR20130096325A KR20130096325A KR1020137019781A KR20137019781A KR20130096325A KR 20130096325 A KR20130096325 A KR 20130096325A KR 1020137019781 A KR1020137019781 A KR 1020137019781A KR 20137019781 A KR20137019781 A KR 20137019781A KR 20130096325 A KR20130096325 A KR 20130096325A
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- conductive layer
- layer
- solar cell
- melting point
- insulating layer
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F10/00—Individual photovoltaic cells, e.g. solar cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/20—Electrodes
- H10F77/244—Electrodes made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers
- H10F77/247—Electrodes made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers comprising indium tin oxide [ITO]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/30—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
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Abstract
Description
도 2는, 하나의 실시형태에 따른 헤테로 접합 태양전지를 나타낸 모식적인 단면도이다.
도 3은, 본 발명의 하나의 실시형태에 따른 태양전지의 제조 공정의 개념도이다.
도 4는, 저융점 재료의 가열시의 형상 변화의 일례를 나타낸 개념도이다.
도 5는, 저융점 재료분말의 가열시의 형상 변화, 및 넥킹(necking)에 대해 설명하기 위한 개념도이다.
도 6은, 소결 넥킹이 발생한 금속미립자의 SEM 사진이다.
도 7은, 도금 장치의 구조의 모식도이다.
도 8은, 접촉각의 측정 방법을 설명하기 위한 개념도이다.
도 9는, 하나의 실시형태에 따른 태양전지의 제조 공정의 개념도이다.
도 10은, 실시예에 있어서의 절연층의 광학 특성을 나타낸 도면이다.
2 : 진성 실리콘계 박막
3 : 도전형 실리콘계 박막
6 : 투명전극층
7 : 집전극
71 : 제 1 도전층
711 : 저융점 재료
72 : 제 2 도전층
8 : 이면 금속전극
9 : 절연층
91 : 발수층
9h : 개구부
9x : 핀홀
50 : 광전변환부
100 : 태양전지
101 : 헤테로 접합 태양전지
10 : 도금 장치
11 : 도금조
12 : 기판
13 : 양극
14 : 기판 홀더
15 : 전원
16 : 도금액
Claims (23)
- 광전변환부와, 상기 광전변환부의 하나의 주면(主面) 상의 집전극(集電極)을 가지는 태양전지로서,
상기 집전극은, 상기 광전변환부측으로부터 순서대로 제 1 도전층과 제 2 도전층을 포함하고, 또한, 상기 제 1 도전층과 상기 제 2 도전층 사이에 절연층을 포함하며,
상기 제 1 도전층은 저융점 재료를 포함하고, 상기 저융점 재료의 열유동 개시 온도(T1)는 상기 광전변환부의 내열온도보다 저온이며,
상기 제 2 도전층의 일부가, 상기 제 1 도전층에 통전(通電)되어 있는, 태양전지. - 제 1항에 있어서,
상기 광전변환부는, 하나의 도전형 결정 실리콘 기판의 하나의 주면 상에, 실리콘계 박막 및 투명전극층을 상기한 순서대로 가지며,
상기 투명전극층 상에 상기 집전극을 가지며,
상기 저융점 재료의 열유동 개시 온도(T1)가 250℃ 이하인, 태양전지. - 제 1항에 있어서,
상기 광전변환부는, 하나의 도전형 결정 실리콘 기판의 하나의 주면 상에 역(逆)도전형의 확산층을 가지며, 상기 확산층 상에 상기 집전극을 가지는, 태양전지. - 제 1항에 있어서,
상기 광전변환부는, 반도체 박막의 pn 접합 또는 pin 접합의 하나의 주면 상에 투명전극층을 가지며, 상기 투명전극층 상에 상기 집전극을 가지는, 태양전지. - 제 1항 내지 제 4항 중 어느 한 항에 있어서,
상기 제 1 도전층은, 상기 저융점 재료의 열유동 개시 온도(T1)보다 고온의 열유동 개시 온도(T2)를 가지는 고융점 재료를 포함하는, 태양전지. - 제 1항 내지 제 4항 중 어느 한 항에 있어서,
상기 제 1 도전층은, 상기 저융점 재료로서, 상기 광전변환부의 내열온도보다 저온의 소결 넥킹(necking) 개시 온도를 가지는 금속미립자를 포함하는, 태양전지. - 제 1항 내지 제 6항 중 어느 한 항에 있어서,
상기 제 2 도전층은, 상기 절연층의 개구부를 통해 제 1 도전층에 통전되어 있는, 태양전지. - 제 1항 내지 제 7항 중 어느 한 항에 있어서,
상기 절연층이, 상기 광전변환부의 제 1 도전층 비형성 영역 상에도 형성되어 있는, 결정 실리콘계 태양전지. - 제 8항에 있어서,
상기 절연층 표면의 물과의 접촉각(θ)이 20° 이상인, 태양전지. - 제 1항 내지 제 9항 중 어느 한 항에 있어서,
상기 저융점 재료가, 금속재료를 포함하는, 태양전지. - 제 1항 내지 제 10항 중 어느 한 항에 기재된 태양전지를 구비하는, 태양전지 모듈.
- 광전변환부의 하나의 주면 상에, 광전변환부측으로부터 순서대로 제 1 도전층, 절연층 및 제 2 도전층을 가지는 집전극을 구비하는 태양전지를 제조하는 방법으로서,
광전변환부 상에 저융점 재료를 포함하는 제 1 도전층이 형성되는 제 1 도전층 형성 공정;
상기 제 1 도전층 상에 절연층이 형성되는 절연층 형성 공정;
상기 제 1 도전층이 가열되는 어닐링 공정; 및
도금법에 의해 제 2 도전층이 형성되는 도금 공정;을 상기한 순서대로 가지며,
상기 어닐링 공정에 있어서, 상기 저융점 재료가 열유동을 발생시키도록 가열이 행해짐으로써, 상기 제 1 도전층 상의 절연층에 변형을 발생시키고,
상기 도금 공정에 있어서, 절연층에 생긴 변형부를 기점으로 하여, 제 2 도전층을 석출시키는, 태양전지의 제조 방법. - 제 1항 내지 제 10항 중 어느 한 항에 기재된 태양전지를 제조하는 방법으로서,
상기 광전변환부 상에 저융점 재료를 포함하는 제 1 도전층이 형성되는 제 1 도전층 형성 공정;
상기 제 1 도전층 상에 절연층이 형성되는 절연층 형성 공정;
상기 제 1 도전층이 가열되는 어닐링 공정; 및
도금법에 의해 제 2 도전층이 형성되는 도금 공정;을 상기한 순서대로 가지며,
상기 어닐링 공정에 있어서, 상기 저융점 재료의 열유동 개시 온도(T1)보다 고온의 어닐링 온도(Ta)로 가열 처리가 행해지는, 태양전지의 제조 방법. - 제 12항 또는 제 13항에 있어서,
상기 어닐링 공정에서의 어닐링 온도(Ta)가, 상기 광전변환부의 내열온도보다 저온인, 태양전지의 제조 방법. - 제 12항 또는 제 13항에 있어서,
상기 어닐링 공정에서의 어닐링 온도(Ta)가 250℃ 이하인, 태양전지의 제조 방법. - 제 12항 내지 제 15항 중 어느 한 항에 있어서,
상기 어닐링 공정에서, 상기 절연층에 개구가 형성되는, 태양전지의 제조 방법. - 제 12항 내지 제 16항 중 어느 한 항에 있어서,
상기 제 1 도전층은, 상기 저융점 재료의 열유동 개시 온도(T1)보다 고온의 열유동 개시 온도(T2)를 가지는 고융점 재료를 포함하며,
상기 어닐링 공정에서의 어닐링 온도(Ta)가, T1<Ta<T2를 만족하는, 태양전지의 제조 방법. - 제 12항 내지 제 16항 중 어느 한 항에 있어서,
상기 제 1 도전층은, 상기 저융점 재료로서 소결 넥킹 개시 온도가 T1', 융점이 T2'인 금속미립자를 포함하고,
상기 어닐링 공정에서의 어닐링 온도(Ta)가, T1'<Ta<T2'를 만족하는, 태양전지의 제조 방법. - 제 12항 내지 제 18항 중 어느 한 항에 있어서,
상기 절연층 형성 공정에서, 상기 광전변환부의 제 1 도전층 비(非)형성 영역 상에도 절연층이 형성되는, 태양전지의 제조 방법. - 제 12항 내지 제 19항 중 어느 한 항에 있어서,
발수(撥水)처리 공정을 더 가지는, 태양전지의 제조 방법. - 제 20항에 있어서,
상기 어닐링 공정보다 전에, 상기 발수처리 공정이 행해지는, 태양전지의 제조 방법. - 제 20항 또는 제 21항에 있어서,
상기 절연층 형성 공정 후에, 상기 절연층 상에 상기 발수처리가 행해지는, 태양전지의 제조 방법. - 제 12항 내지 제 22항 중 어느 한 항에 있어서,
상기 광전변환부는, 하나의 도전형 결정 실리콘 기판의 하나의 주면 상에, 실리콘계 박막 및 투명전극층을 상기한 순서대로 가지며, 상기 투명전극층 상에 상기 집전극이 형성되는, 태양전지의 제조 방법.
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KR20210065474A (ko) * | 2019-11-27 | 2021-06-04 | 한국과학기술연구원 | 전하 선택 접합 태양전지 및 이의 제조방법 |
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EP2662900A1 (en) | 2013-11-13 |
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US20130312827A1 (en) | 2013-11-28 |
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JP5325349B1 (ja) | 2013-10-23 |
TWI420681B (zh) | 2013-12-21 |
KR101329222B1 (ko) | 2013-11-14 |
JPWO2013077038A1 (ja) | 2015-04-27 |
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