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Materials World Network: Pulsed Laser Processing of Electrodeposited Chalcopyrite Photovoltaic Absorber Layers

材料世界网：电镀黄铜矿光伏吸收层的脉冲激光加工

基本信息

批准号：
1008302
负责人：
Michael Scarpulla
金额：
$ 36.38万
依托单位：
University of Utah
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2010
资助国家：
美国
起止时间：
2010-08-01 至 2014-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1008302&HistoricalAwards=false
关键词：
Materials World Network Pulsed Laser

项目摘要

This international collaborative research project between investigators at the University of Utah and the University of Luxembourg addresses the synthesis of high-quality chalcopyrite semiconductors for thin film photovoltaics using electrodeposition and pulsed laser annealing. The investigation examines two hypotheses: 1) relatively-high total fluence pulsed laser annealing is effective at annealing electrodeposited precursor films and can result in chalcopyrite semiconductor phases having good photovoltaic and crystalline properties and, 2) relatively-low total fluence pulsed laser annealing is effective at reducing specific electronic and structural defects in previously-annealed chalcopyrite thin films. The effects of pulsed laser annealing on the composition, phase, crystalline, optoelectronic, and electronic defect properties of a model chalcopyrite, CuInSe2, prepared by electrodeposition, as well as the incorporation of Ga as substitute for In in the electrodeposited films, is investigated. Anticipated results from this work are relevant to the rapidly-developing field of earth-abundant materials for thin film photovoltaic cells. Undergraduate students at Utah and graduate students at both Utah and Luxembourg take part in interdisciplinary, materials science and chemistry research activities at the participating laboratories.This award is co-funded by the Division of Materials Research and the Office of International Science and Engineering.

犹他州大学和卢森堡大学的研究人员之间的这一国际合作研究项目致力于利用电沉积和脉冲激光退火合成用于薄膜光致发光的高质量黄铜矿半导体。该研究检验了两个假设：1）相对高的总能量密度脉冲激光退火在退火电沉积前体膜时是有效的，并且可以导致黄铜矿半导体相具有良好的光伏和结晶性质，以及2）相对低的总能量密度脉冲激光退火在减少先前退火的黄铜矿薄膜中的特定电子和结构缺陷时是有效的。研究了脉冲激光退火对模型黄铜矿CuInSe 2的成分、相、结晶、光电和电子缺陷性质的影响，以及Ga作为In的替代物在电沉积膜中的掺入。这项工作的预期结果是相关的快速发展领域的地球丰富的材料薄膜光伏电池。犹他州的本科生以及犹他州和卢森堡的研究生在参与实验室参加跨学科的材料科学和化学研究活动。该奖项由材料研究部和国际科学与工程办公室共同资助。