JP5911487B2 - Czts系薄膜太陽電池及びその製造方法 - Google Patents
Czts系薄膜太陽電池及びその製造方法 Download PDFInfo
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- 239000010409 thin film Substances 0.000 title claims description 54
- 238000000034 method Methods 0.000 title claims description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000011701 zinc Substances 0.000 claims description 104
- 230000031700 light absorption Effects 0.000 claims description 72
- 239000000203 mixture Substances 0.000 claims description 67
- 239000010408 film Substances 0.000 claims description 38
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 36
- 229910007610 Zn—Sn Inorganic materials 0.000 claims description 29
- 239000002243 precursor Substances 0.000 claims description 19
- 229910052718 tin Inorganic materials 0.000 claims description 16
- 229910052725 zinc Inorganic materials 0.000 claims description 16
- 150000003752 zinc compounds Chemical class 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000004544 sputter deposition Methods 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 229910052950 sphalerite Inorganic materials 0.000 claims description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 41
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 238000007654 immersion Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 5
- 238000000231 atomic layer deposition Methods 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 238000009616 inductively coupled plasma Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- -1 OH) Inorganic materials 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Description
2 金属裏面電極層
3 p型CZTS系光吸収層
3’ 低Zn/Sn比領域
4 n型高抵抗バッファ層
5 n型透明導電膜
Claims (7)
- 基板上に金属裏面電極層を形成し、
Cu/(Zn+Sn)比を横軸、Zn/Sn比を縦軸とする座標で表す場合、Cu−Zn−Sn組成比(原子比)が、点A(0.825、1.108)と、点B(1.004、0.905)と、点C(1.004、1.108)と、点E(0.75、1.6)及び点D(0.65、1.5)を結ぶ領域内にあるように選択された、少なくともCu,Zn,Snを含む金属プリカーサ膜を前記金属裏面電極層上に形成し、
前記金属プリカーサ膜を硫化又はセレン化してp型CZTS系光吸収層を形成し、
前記p型CZTS系光吸収層上に亜鉛化合物のn型高抵抗バッファ層を形成し、
前記n型高抵抗バッファ層上にn型透明導電膜を形成する、各ステップを備え、
前記金属プリカーサ膜のZn/Sn比が1.11を超える場合は、前記p型CZTS系光吸収層の形成後であって前記n型高抵抗バッファ層の形成前に、前記p型CZTS系光吸収層の前記n型高抵抗バッファ層側表面にSnを追加する処理を行って、Zn/Sn比が1.11以下の領域を形成し、その後、前記n型透明導電膜を形成することを特徴とする、CZTS系薄膜太陽電池の製造方法。 - 請求項1に記載の方法において、前記Snを追加する処理は、前記p型CZTS系光吸収層をSnCl水溶液に浸漬し、その後アニールするものである、CZTS系薄膜太陽電池の製造方法。
- 請求項1又は2に記載の方法において、前記亜鉛化合物は、Zn(S、O、OH)である、CZTS系薄膜太陽電池の製造方法。
- 請求項1又は2に記載の方法において、前記金属プリカーサ膜は、ZnS、Sn、Cuをこの順で金属裏面電極上に順次スパッタして形成する、CZTS系薄膜太陽電池の製造方法。
- 請求項1乃至4の何れか1項に記載の方法において、前記金属プリカーサ膜のZn/Sn比が1.11を超える場合、前記Zn/Sn比が1.1以下の領域は、前記p型CZTS系光吸収層の前記n型高抵抗バッファ層側表面から30nm以内に形成される、CZTS系薄膜太陽電池の製造方法。
- 請求項5に記載の方法において、前記p型CZTS系光吸収層の前記n型高抵抗バッファ層側表面から30nm以内の領域におけるZn/Sn比は、0.25−0.69である、CZTS系薄膜太陽電池の製造方法。
- 請求項6に記載の方法において、前記p型CZTS系光吸収層の形成時のZn/Cu比は1.25−1.53、Cu/(Zn+Sn)比は0.70−0.81である、CZTS系薄膜太陽電池の製造方法。
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JP6061765B2 (ja) * | 2013-04-16 | 2017-01-18 | ソーラーフロンティア株式会社 | 太陽電池の製造方法 |
JP5741627B2 (ja) * | 2013-04-25 | 2015-07-01 | 株式会社豊田中央研究所 | 光電素子 |
US9240501B2 (en) * | 2014-02-12 | 2016-01-19 | Solar Frontier K.K. | Compound-based thin film solar cell |
JPWO2016013670A1 (ja) * | 2014-07-25 | 2017-04-27 | 凸版印刷株式会社 | 化合物薄膜太陽電池、化合物薄膜太陽電池の製造方法、および、光吸収層 |
KR101908472B1 (ko) | 2016-09-23 | 2018-10-17 | 재단법인대구경북과학기술원 | 금속 및 화합물 박막 전구체를 이용한 czts계 광흡수층 제조방법 |
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JP3837114B2 (ja) * | 1999-03-05 | 2006-10-25 | 松下電器産業株式会社 | 太陽電池 |
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JP2009152302A (ja) * | 2007-12-19 | 2009-07-09 | Canon Inc | 光起電力素子の形成方法 |
JP5003698B2 (ja) * | 2009-02-18 | 2012-08-15 | Tdk株式会社 | 太陽電池、及び太陽電池の製造方法 |
WO2010095608A1 (ja) | 2009-02-20 | 2010-08-26 | 株式会社豊田中央研究所 | 硫化物及び光電素子 |
US20120055554A1 (en) * | 2009-05-21 | 2012-03-08 | E.I. Du Pont De Nemours And Company | Copper zinc tin chalcogenide nanoparticles |
EP2435359A4 (en) * | 2009-05-26 | 2016-04-20 | Purdue Research Foundation | SYNTHESIS OF SEVERAL DIFFERENT CHALCOGENIDE NANOPARTICLES WITH CU, ZN, SN, S AND SE |
US9085829B2 (en) * | 2010-08-31 | 2015-07-21 | International Business Machines Corporation | Electrodeposition of thin-film cells containing non-toxic elements |
US9368660B2 (en) * | 2011-08-10 | 2016-06-14 | International Business Machines Corporation | Capping layers for improved crystallization |
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2012
- 2012-05-31 WO PCT/JP2012/064182 patent/WO2012172999A1/ja active Application Filing
- 2012-05-31 US US14/126,237 patent/US20140109960A1/en not_active Abandoned
- 2012-05-31 JP JP2013520504A patent/JP5911487B2/ja active Active
- 2012-05-31 EP EP12801272.1A patent/EP2722894A4/en not_active Withdrawn
-
2016
- 2016-03-03 US US15/060,105 patent/US20160190373A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20160190373A1 (en) | 2016-06-30 |
JPWO2012172999A1 (ja) | 2015-02-23 |
EP2722894A4 (en) | 2015-04-01 |
WO2012172999A1 (ja) | 2012-12-20 |
US20140109960A1 (en) | 2014-04-24 |
EP2722894A1 (en) | 2014-04-23 |
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